Codes & Policy

Code and policies favoring high performance buildings are a critical tool in meeting the ambitious goals of states and cities by raising the bar for energy efficiency and carbon reductions in new construction and existing building projects.

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Energy codes and policies continue to be a crucial lever in transforming markets for high performance buildings. NBI has been advancing national and local building energy codes since it was founded two decades ago. Our experience driving innovation in code and policy development now positions us as a leading resource.

National model energy code development

National model energy codes and standards like ASHRAE 90.1 and the International Energy Conservation Code (IECC) have the potential, with each update cycle, to provide steady progress to carbon neutral new construction nationwide by 2030. Advances in the most recent cycles have delivered savings of approximately 9% for ASHRAE 90.1-2019 and the 2021 IECC. But this progress is not consistent or assured. NBI’s work in this program area includes strengthening model building energy codes and increasing use and usefulness. NBI works to drive  updates to the IECC, and ASHRAE Standards 90.1, 90.2 and 189.1, which create the basic foundation of energy codes across the country. This work has led to success in several development cycles (most notably 2012 and 2021) to advance the model codes to where they are today. To continue to meet the goal of efficient and carbon neutral buildings, model energy code development remains a key priority in NBI’s codes and policy work. 

Advancing innovation in local code and policy adoption

NBI works to develop the necessary thought leadership to overcome critical issues that are hindering code advancement and create the technical basis for progressive code and policy approaches on the path to carbon neutral buildings.  Since the inception of energy codes more than 45 years ago, policies, regulations, legislation and incentive programs have centered on saving kilowatt hours of electricity and therms of fossil gas or on reducing building energy cost rather than quantifying carbon or other GHG emissions reductions. Given the significant adoption of carbon and climate action plans across the country, there is a growing misalignment between the regulatory policy and program framework and jurisdictional goals.

To overcome these gaps, NBI works to provide options from voluntary stretch codes to mandatory existing building performance standards for cities and states that are serious about reducing the energy use and carbon emissions from the built environment. These voluntary or required codes and policies are a level of stringency above the base code and better reflect advances in technology, design practices, and local ambition. They provide opportunities for local workforce development and help accelerate market acceptance and adoption of best practices to reach a carbon neutral future. 

To learn more, click on Focused Strategies, Tools & Guides or Research links above.

NewsView All

Washington state to require electric heating in building code update

News / April 25, 2022

Published by S&P Global: Washington will require all-electric space and water heating in new commercial and multifamily construction, making it the first state to incorporate building electrification mandates into statewide energy codes. One proposal would require all-electric systems and appliances...

Focused Strategies

Embodied Carbon

Codes & Policy / February 13, 2022

Building operations and construction-related activities are responsible for approximately 39% of humanity‘s global greenhouse gas (GHG) emissions. More than a fourth of those are embodied carbon emissions, those associated with the production of building materials, construction activities, operations, and end...

Building Performance Standards

Codes & Policy / January 21, 2022

Building performance standards (BPS) set targets for existing building energy performance and are one of the best tools we have for achieving deep energy savings and emissions reductions in existing buildings. They can be written to optimize the energy use...

Model and Base Energy Codes

Codes & Policy / July 16, 2021 / Energy Codes

For more than 20 years, NBI has been working with partners and within the code-making bodies to advance codes at the national, state, and local government levels. National model energy codes and standards like ASHRAE 90.1 and the International Energy Conservation Code (IECC) have...

Zero Cities Project

Codes & Policy / February 13, 2019 / Energy Codes

The Zero Cities Project is a three-year project supporting both cities and their most impacted communities* to co-develop and implement actionable and equitable roadmaps and policy strategies to achieve a zero-net-carbon (ZNC) building sector by 2050. Through a community collaboration...

Zero Energy/Carbon Codes

Codes & Policy / October 28, 2018 / Zero Net Energy (ZNE)

Building energy codes are playing an increasing in facilitating the move to ZE buildings. As advances in construction practices and building components and systems are proven out, communities are  strengthening the building codes so that higher levels of building efficiency...

Stretch Codes (Advanced Codes)

Codes & Policy / October 15, 2018 / Energy Codes

New design and process strategies can be demonstrated through a variety of advanced code strategies.  NBI builds market capacity for higher efficiency energy codes by encouraging the use of stretch codes (also referred to as reach codes). To support the...

Washington State Energy Code Roadmap to 2031

Codes & Policy / October 15, 2018 / Energy Codes

Many organizations and jurisdictions have adopted a range of building performance goals over the past decade that have significantly changed the conversation about energy codes and building energy performance.  The primary policy driver for the Washington State Energy Code increases in...

Outcome-Based Energy Codes (Advanced Codes)

Codes & Policy / December 21, 2015

Our nation’s current energy codes include structural and enforcement characteristics that limit the ability to achieve significantly more energy savings without major changes. Current energy code strategies consider only a limited number of the factors that impact building energy performance. ...

ResearchView All

Cost Study of the Building Decarbonization Code

Report / April 13, 2022

This “Cost Study of the Building Decarbonization Code” analyzes the incremental first cost and life cycle cost of two common building types that follow the code language in NBI’s Building Decarbonization Code. The study, which was supported by the Natural…

Lifecycle GHG Impacts in Building Codes

Report / January 18, 2022

NBI’s report presents language to incorporate embodied carbon requirements in building codes. Researchers explain the need to address the embodied carbon of the highest emitting materials and the carbon emission benefits for jurisdictions. This report examines the current lack of…

The Technical Basis of Building Performance Standards

Paper / March 19, 2021

As leading cities and states seek to meet their aggressive climate, energy, and decarbonization goals, they are turning increasingly to mandatory policies that require improved energy and emissions performance across their existing building stock. The most comprehensive of these policies…

Taking the (Fuel) Blinders off Energy Codes Part 2: Metrics and Mechanics in the Modern Era

Paper / March 26, 2020

This paper follows upon a recently published paper examining how climate policy now impacts energy code policy. A variety of drivers, including greenhouse gas emission goals, regulation, market forces, and new technologies, is changing the relationship between buildings and the…

Energy Code Roadmaps for Getting to Zero Outcomes

Paper / February 20, 2020

Advanced energy codes are an important policy mechanism to advance energy efficiency and integrate renewables into the built environment. Energy code roadmaps lay the groundwork by identifying the order and priorities necessary for subsequent code improvements on the path to…

Zero Energy Commercial Building Targets

Paper / September 9, 2019

The critical first step in achieving a zero energy building is to set an energy use target. This Zero Energy Commercial Building Targets white paper helps define appropriate goals for these ultra-low energy buildings, which often surpass even the most…

Stretch Codes on the Road to Zero Energy – Potholes and Speed Traps Ahead

Paper / August 27, 2018

This paper details how a range of stretch code efforts, working in parallel, contribute to the overall progress in energy savings, with many current stretch codes targeting 20% energy savings from ASHRAE 90.1-2013/2015 IECC. It also explores how stretch codes…

Taking the (Fuel) Blinders off Energy Codes

Paper / August 27, 2018

Amidst a backdrop of the Arab Oil Embargo of 1973 and a perception of physical limits on energy resources, the obvious policy imperative of a new generation of energy codes was to reduce the use of all types of energy.…

Federal Preemption as a Barrier to Cost Savings and High Performance Buildings in Local Energy Codes

Paper / June 22, 2017

This white paper from New Buildings Institute (NBI) looks at the impacts of federal rules on efficiency standards for appliances, water heating and HVAC equipment and lays out possible solutions from an examination of policies from around the world. Decades-old…

Proposed Multifamily Building Section for the 2018 IECC

Document / October 16, 2015

NBI presented the first public “straw-man” of a proposed section for multifamily buildings in the 2018 International Energy Conservation Code (IECC) to the Department of Energy's Denver Energy Codes Stakeholder Meeting on October 13, 2015.

Washington State Energy Code Roadmap

Report / September 11, 2015

The purpose of this roadmap is to provide context for the policy and code performance goals for new buildings in Washington law and identify the mechanisms and cycles by which code provisions can evolve to meet these goals. These code…

Getting to Outcome-Based Building Performance Event Report

Report / May 6, 2015

This report summarizes the work undertaken by a group of building industry thought leaders who gathered for a Performance Outcome Summit in August 2014 in Seattle, Washington. During a day and a half workshop, the group examined the opportunities, barriers…

Essential 7: Commercial Energy Code Voting Guidance for the 2015 IECC-Comm

Document / October 1, 2013

New Buildings Institute, Northwest Energy Codes Group, Institute for Market Transformation and Southwest Energy Efficiency Project identified seven key issues to ensure that the 2015 IECC improves energy efficiency, is easier to apply, and makes compliance and enforcement more straightforward.…

Title 24 Final FDD Language and Explanation

Document / April 24, 2013

The language included in the California Title 24-2013 Energy Standards for Non-Residential Buildings requiring certain FDD features in all new rooftop unit heating and cooling equipment of 5-ton capacity or greater starting in 2014.

Utility Programs in a World of Rapid, Code-Induced Advancements in Energy Baselines

Paper / September 7, 2012

In recent years, model energy codes – which traditionally require the implementation of specific measures and strategies at the time of new commercial and residential construction – have set the stage for large increases in energy savings as states and…

White Paper on Establishing a Pathway to Outcome-Based Code Policy

Paper / May 16, 2012

For several years, NBI has been engaged in wide‐ranging conversations about code stringency increases and the degree to which current code strategies can continue to achieve aggressive efficiency goals that have been targeted. We have come to recognize that current…

Sensitivity Analysis: Comparing the Impact of Design, Operation, and Tenant Behavior on Building Energy Performance

Report / July 27, 2011

This study compares the magnitude of energy impact that various design features, operations and tenant behaviors have on total building energy use. The findings of this study can help the building community begin to align their priorities with those building…

Outcome-Based Energy Codes for Existing Buildings, Seattle Model Energy Code Project

Report / May 16, 2011

The Preservation Green Lab (PGL), the City of Seattle, and the New Buildings Institute (NBI) are collaborating on a new energy code framework for existing and historic buildings that will pair accountability for actual performance outcomes with flexibility in how…

Code Calibration: Understanding What Energy Codes Can Really Achieve

Paper / July 28, 2010

This paper observes that a key problem with current energy code practice is the difficulty in determining what level of performance the codes are delivering. Current energy code practice is based on estimated energy use of a theoretical sample of…

Summary and Recommendations of the Getting to 50 Summit

Report / January 21, 2010

In March 2007, New Buildings Institute (NBI) hosted and facilitated the Getting to 50 Summit. This meeting of 60 experts was initiated to develop relationships and strategies which will significantly and rapidly reduce energy use in new and renovated commercial…

California Outdoor Lighting Baseline Assessment

Report / January 21, 2010

This is the first major study to provide real data about commercial building outdoor lighting in the State of California. The report identifies statewide outdoor lighting design practices; estimates energy demand and consumption; and provides a framework for outdoor lighting…


There are no events for Codes & Policies. Please see our other events below.

Energy Efficiency Day 2022

Event / October 5, 2022

Energy Efficiency Day (the first Wednesday in October – Oct. 5, 2022)  is a collaborative effort of dozens of energy efficiency advocacy groups around the United States. The Energy Efficiency Day message is simple: “Save Money. Cut Pollution. Create Jobs.”…

2023 Getting to Zero Forum

Event / May 10, 2023 - May 12, 2023

The Getting to Zero Forum is the premier event dedicated to zero energy and zero carbon buildings. With a growing number of climate emergencies across the United States and around the world, there is no more important time than now…

NewsView All

45 organizations welcome historic climate investments in Inflation Reduction Act as a national turning point in effort to combat climate change

News / August 16, 2022

Groups applaud investments to build clean energy future and healthier homes, call for further action on climate, protections for frontline communities WASHINGTON, D.C.—Amid a rapidly warming climate, President Biden today signed the Inflation Reduction Act into law. The nonpartisan Committee...

Over 60 organizations celebrate introduction of historic climate provisions in Inflation Reduction Act, call for its swift passage to address climate emergency, lower household energy costs

News / August 4, 2022

WASHINGTON, D.C.—Key Democratic leaders have struck a historic deal to lower energy bills and address the climate crisis with the introduction of the Inflation Reduction Act of 2022 – which aims to reduce carbon emissions by roughly 40% by 2030...

What You Need to Know About Building Performance Standards

News / July 29, 2022

Published by FacilitiesNet:  Building performance standards are the latest tool being used by state and local governments to reduce energy use and greenhouse gas emissions in existing buildings. We talked to two noted building performance standard experts, Kimberly Cheslak, director...

Codes for Climate July 2022 Newsletter

News / July 28, 2022

The latest Codes for Climate newsletter includes info on the initiative’s one year anniversary, recent codes and standards development updates, federal, state and local action updates, recent news, upcoming events, and more. Learn more by reading the full newsletter.  

DC to Ban Gas in Most New Buildings

News / July 27, 2022

Published by PaintSquare: The Council of the District of Columbia joined several other major cities in the nation through the unanimous passing of two new pieces of legislation requiring that all new buildings and substantial renovations in Washington D.C. be...

Climate change prompts a push away from natural gas

News / July 18, 2022

Published by Everett Herald: While the gas industry describes heat pumps as “not a silver bullet,” many do consider them a major weapon in the battle to reduce greenhouse gas emissions. Heat pumps not only provide efficient space heating but...

Groups Urge Michigan To Adopt New Building Rules For Energy Efficient Homes, Businesses

News / July 7, 2022

Publiched by Michigan Business Network: Building more energy-efficient homes and businesses across Michigan is cost-effective, will improve the health and safety of Michigan residents, and create new jobs, a group of industry, health, and environmental organizations said today. The organizations...

Codes for Climate June 2022 Newsletter

News / June 28, 2022

The latest Codes for Climate newsletter includes info about recent codes and standards development updates, including a number of proposals that will improve the efficiency of existing buildings, federal, state and local action updates, recent news, upcoming events, and more. Learn...

Proposed Building Decarbonization Bill Would Help Electrify the County’s Future

News / June 14, 2022

Published by “We’re entering a new era of building design and construction that will bring our ambitious climate goals to life,” opened Lindsey Shaw, Chief of the Energy and Climate Section of the Montgomery County Department of Environmental Protection,...

Natural gas legislation: What multifamily developers, owners need to know

News / June 2, 2022

Published by Constructive Dive: Bans on natural gas hookups in new buildings are spreading across the country. In 2019, Berkeley, California, was the first city to ban natural gas hookups in new buildings. So far, 77 cities in 10 states...

Contract-laden GSA calls for concrete, asphalt EPD submittals

News / May 31, 2022

Published by Concrete Products: A new U.S. General Services Administration standard targeting low embodied concrete on federal projects will require contractors to provide environmental product declarations (EPD), where available, from ready mixed suppliers. It compels procurement of concrete exhibiting production...

Podcast: The Cost of Building Decarbonization

News / May 18, 2022

Peggy and Kim Cheslak, Director of codes at New Buildings Institute, discuss a new study on building decarbonization. She says one of the primary questions is: what does it cost? Thus, it went into the study with two primary goals:...

Hochul Admin. Presses for Immediate Action on All-Electric New Construction at Hearing

News / May 12, 2022

Published by Food & Water Watch: Today, the Assembly hearing on the All-Electric Building Act is demonstrating the consensus that ending gas in new construction fights climate change, creates jobs and cuts air pollution. Experts, including NYSERDA President Doreen Harris...

Cheaper to electrify US homes during construction than after

News / May 10, 2022

Published by Energy Monitor: It is cheaper to electrify buildings – or at least make them ready for future electrification – at the time of construction than retrofitting them for electric equipment afterwards, according to new research from US non-profit New Buildings Institute...

Codes for Climate Beginning of May 2022 Newsletter

News / May 3, 2022

  The latest Codes for Climate newsletter includes info about recent codes and standards development updates, federal, state and local action updates, recent news and resources, and more. Learn more by reading the full newsletter.  

NBI Releases Cost Study of the Building Decarbonization Code

News / April 27, 2022

Published by EC&M: New Buildings Institute (NBI) recently released the “Cost Study of the Building Decarbonization Code.” The study analyzes the incremental first cost and life cycle cost of two common building types that follow the code language in NBI’s...

Washington state to require electric heating in building code update

News / April 25, 2022

Published by S&P Global: Washington will require all-electric space and water heating in new commercial and multifamily construction, making it the first state to incorporate building electrification mandates into statewide energy codes. One proposal would require all-electric systems and appliances...

Codes for Climate: A Vehicle for Change

News / April 25, 2022

Published by MTBA Architecture: One of the biggest obstacles for deep green retrofits to existing & historic spaces is the lack of regulations and building codes that enforce climate goals. The opportunity to create new building codes for climate is...

Report spells code-geared carbon benchmarks

News / April 19, 2022

Published by Concrete Products: The most recent New Buildings Institute (NBI) report presents language to incorporate embodied carbon requirements in codes, and explains the need for jurisdictions to address such criteria for materials or products with the highest carbon dioxide...

Demystifying Energy Code Development

News / April 18, 2022

Published by NRDC: Historically, the energy code has been developed through a public process where stakeholders submit proposed changes to the code, then come together to debate the proposals in front of a technical committee that makes recommendations for whether...

Building contract-rich GSA to require concrete, asphalt EPD submittals

News / April 11, 2022

Published by Concrete Products: A new General Services Administration standard targeting low embodied concrete on federal projects will require contractors to provide environmental product declarations (EPD), where available, from ready mixed or precast suppliers. It compels procurement of concrete exhibiting...

Embodied Carbon Limits: New Language for Codes and Specs

News / April 7, 2022

Published by BuildingGreen: Aspirational limits on embodied carbon in our buildings are all well and good, but how do you actually determine and implement those limits? New code language and a new model specification could be the ticket. New Buildings...

Biden Administration Takes Important Step In Buying Clean

News / April 6, 2022

Published by Natural Resources Defense Council: The Biden Administration has taken an important step forward in leveraging the purchasing power of the federal government to grow the market for cleaner industrial materials. For the first time, the Government Services Administration...

Codes for Climate April Newsletter

News / April 5, 2022

The latest Codes for Climate newsletter includes info about recent news mentions, codes and standards development and adoption updates, upcoming events, and more. Learn more by reading the full newsletter.

Government Sets Carbon Limits on Concrete for Federal Projects

News / March 31, 2022

Published by Scientific American: The procurement arm of the federal government is imposing new limitations on high carbon-emitting building materials for all its major projects, a move that will affect billions of dollars of federal infrastructure investments. GSA only will...

Why the Natural Gas Industry Wants to Make Sure You Never Get an Electric Car

News / March 8, 2022

Published by Slate: After failing to overturn an election expected to hasten the transition away from fossil fuels, conservative industry groups last year managed to get future votes canceled and tightened their grip over the process used to develop new...

A Battle Over Building Codes May Be The Most Important Climate Fight You’ve Never Heard Of

News / March 3, 2022

Published by The Huffington Post: After failing to overturn an election expected to hasten the transition away from fossil fuels, conservative industry groups last year managed to get future votes canceled and tightened their grip over the process used to...

Energy Standards To Perform

News / February 23, 2022

Published by Facility Executive: This past January, President Biden announced the establishment of a Buildings Performance Standards Coalition during remarks at the U.S. Conference of Mayors winter meeting. The announcement highlighted the importance of enacting policy to support emission reductions...

Report gauges building codes’ impact on embodied carbon in project specs

News / February 22, 2022

Published by Concrete Products: The most recent New Buildings Institute (NBI) report presents language to incorporate embodied carbon requirements in codes, and explains the need for jurisdictions to address such criteria for materials or products with the highest carbon dioxide...

Codes for Climate January Newsletter

News / February 1, 2022

The latest Codes for Climate newsletter includes info about recent news mentions, codes and standards development and adoption updates, upcoming events, and more. Learn more by reading the full newsletter.

A New Coalition Takes Aim at Emissions from Existing Buildings

News / February 1, 2022

Published by Architectural Record: At the United States Conference of Mayors winter meeting, held earlier this month in Washington, D.C., President Biden announced a new collaboration with state and local governments to reduce carbon emissions from the built environment. Known...

Unions, Industry, Environmental Leaders, and Elected Officials Agree New Building Performance Standards Coalition Will Deliver

News / January 25, 2022

Published by The White House: Last week, President Biden announced during his remarks at the U.S. Conference of Mayors that his Administration is teaming up with states, cities, labor, and industry to launch the Building Performance Standards Coalition, a first-of-its-kind partnership between 33 state and...

White House forms coalition with local governments to pursue building performance policies

News / January 24, 2022

Published by Smart Cities Dive: President Joe Biden on Friday announced the launch of a Building Performance Standards Coalition, a partnership between more than 30 city and county governments along with the states of Colorado and Washington. The announcement came during...

Commentary: It’s time for Delaware to act on climate change

News / January 21, 2022

Published by Bay to Bay News: Please join us in urging the elected officials at all levels to take prompt legislative and administrative actions at the systemic level to reduce the risks to life and property in Delaware from declining biodiversity,...

The Biggest Issues to Watch in 2022

News / January 20, 2022

Published by Governing: State legislatures will have a lot on their plates. They’ll deal with issues in wildly differing ways. This article sets the context for the 2022 session with an overview of everything from abortion to taxes. Kim Chelsak,...

Maryland Green Buildings Bill To Be Based on Commission Report

News / December 20, 2021

Published by RTO Insider: Commercial and multifamily residential buildings in Maryland would be required to eliminate their carbon emissions and new buildings would be all-electric under a bill being drafted in the state’s House of Delegates. And ideas in the...

How New Buildings Institute is Pushing CRE Toward Net Zero Carbon

News / December 9, 2021

Published by One of the key teams that are helping the building sector get to zero is New Buildings Institute. This nonprofit organization sits at a peculiar intersection in the building world, as they help improve the energy performance...

Denver plans to send large buildings into the warm embrace of renewable electricity

News / November 24, 2021

Published by Denverite: In its latest attempt to fight climate change, Denver City Council unanimously approved a new ordinance to supercharge the city’s big buildings. The city crafted the ordinance alongside New Buildings Institute, a Portland-based advocacy group that keeps...

Maps: How State Energy Codes Compare to Efficiency Goals

News / November 18, 2021

Published by Governing: Building energy use accounts for nearly 30 percent of total greenhouse gas emissions. The latest energy codes can reduce carbon dioxide, but many states continue to use standards that are outdated. Kim Cheslak, director of codes for...

Building codes are wonky and dense. But they can slash emissions and pollutants.

News / October 13, 2021

Published by Grist: States and cities across the country are revamping often arcane building codes to limit the use of fossil fuels in homes and workplaces. It’s an essential shift, as gas-powered appliances like furnaces and water heaters are a...

NBI Releases Code Overlay for Electrification

News / October 4, 2021

Published by BuildingGreen: New Buildings Institute (NBI) wants to help jurisdictions bite off however much electrification they can chew. Recently released model code language offers provisions for requiring all-electric buildings and alternative provisions for requiring electric-ready buildings. Cities and towns can layer...

DOE stirs up climate fight over building codes

News / September 21, 2021

Published by E&E News: Energy Secretary Jennifer Granholm warned the creators of the nation’s most widely used model for building energy codes yesterday that their work could be sliding toward “irrelevance” in addressing climate change, signaling that a once-obscure policy...

Cracking the Code

News / September 8, 2021

Published by Architect Magazine: Building codes and regulations shape our cities in countless ways, distilling generations of development experience, best practices for safety, technological know-how, and, especially in the case of zoning laws, society’s harmful, retrograde views on equity and equality....

California Forging Ahead on Zero Emission Buildings

News / August 12, 2021

Published by NRDC: Hopeful climate news came from Sacramento, CA as the California Energy Commission (CEC) took a major stride toward zero-carbon emissions buildings in the 2022 update of the statewide building energy code it just adopted. Energy use in...

Decentralized approach to codes means emissions reduction responsibility falls on local officials

News / August 11, 2021

Published by Building Design & Construction: While organizations such as the International Code Council set energy efficiency standards, in the U.S., state and local governments have the responsibility of adopting their own building codes. In Minnesota, for instance, a coalition of...

California takes bold steps to make electricity the fuel of choice for new buildings

News / August 11, 2021

Published by Canary Media: California has become the first state in the U.S. to pass building codes to make all-electric heating and appliances the default choice for newly built homes. It’s a win for advocates of limiting natural gas use...

The Fight to Change US Building Codes

News / August 2, 2021

Published by Inside Climate News: Energy consumed in buildings produced more than 30 percent of U.S. greenhouse gas emissions in 2019, making them a key part of the climate challenge. And the window to decarbonize them is narrowing: Analysts at organizations such...

How to Reduce Building Emissions and Center Equity: A New Framework for Policymakers and Communities

News / July 20, 2021

Framework co-developed with cities shows how Building Performance Standards can address city climate priorities and aid in promoting equitable economic recovery To support efforts to reduce energy use and greenhouse gas emissions from existing buildings, eight organizations came together with...

Buildings are big polluters: here’s the path to their decarbonisation.

News / July 8, 2021

Published by Smart Energy International: Buildings account for 39% of all the carbon emissions in the US, more than any other sector. According to the US Green Building Council, the emissions of US buildings alone are more than those of...

With Time Running Out To Cut Carbon From Buildings, Industry Just Tightened Its Grip

News / July 1, 2021

Published by Huffington Post: Buildings are huge generators of planet-warming gases, with fossil fuels responsible for everything from heating and cooling to cooking and charging our devices. Experts say a massive overhaul of building efficiency is imperative within the next...

Codes for Climate Offers States and Cities a Path to Building Decarbonization

News / June 25, 2021

Published by North American Clean Energy: As states and cities seek to fulfill their climate goals, it’s not clear that national code-making entities will keep pace with the efficiency stringency and building decarbonization measures that are necessary. Buildings currently represent...

New Stretch Code Will Mean Low-Carbon Buildings

News / May 16, 2021

Published by Green Lodging News: Transitioning America’s buildings away from burning fossil fuels for heating and water heating, toward equipment powered by increasingly clean electricity is key to meeting the nation’s climate goals, including President Biden’s commitment to net-zero carbon...

Code Council ushers new voices into building energy efficiency dialog

News / April 28, 2021

Published by Concrete Products: A new International Code Council framework will assist governments and building industry stakeholders in meeting energy efficiency and greenhouse gas reduction goals. The Code Council Board of Directors, which consists of 18 government officials who were...

Commercial buildings: an EV-ready approach for new builds and retrofits

News / April 20, 2021

Published by Electric Autonomy: In the third article in a series that explores how to make the built environment EV-ready, Brendan McEwen turns to commercial buildings, outlining how building codes and assessing user needs can achieve EV-ready outcomes. The New...

US building codes need a major retrofit to meet climate goals and spare consumers

News / April 7, 2021

Published by Smart Cities Dive: The International Code Council, which rolled back local governments’ say in energy efficiency regs for buildings, needs to adapt to the times or step aside, writes Energy Innovation’s Sara Baldwin. Buildings generate around a third...

ICC Makes Controversial Change

News / March 19, 2021

Published by Architectural Record: Early in March, the board of directors of the International Code Council (ICC) moved to overhaul the process for developing its model energy code. The controversial change entails switching from a framework in which thousands of...

Changes to Energy Code Process Strip Power from Local Voters

News / March 9, 2021

Published by NRDC Expert Blog: The organization that administers the process for developing the national model building energy code for new homes and other buildings used by cities and towns nationwide has decided to make substantial changes to how it...

Industry organizations react to new ICC framework

News / March 8, 2021

Published by The Construction Specifier: A number of industry organizations have voiced their reactions to a new framework announced by the International Code Council (ICC). In reaction, New Buildings Institute (NBI) released a statement voicing is opposition the changes, which...

Overhaul of building energy code deals setback to gas ban backers

News / March 8, 2021

Published by S&P Global: The council responsible for developing model building codes overhauled its process for setting minimum energy efficiency requirements, blocking a pathway that local governments have used to secure decarbonization measures like building electrification and electric vehicle charging....

Code Fights

News / March 6, 2021

Published by POLITICO Morning Energy: The International Code Council meets today on whether to follow through on changing how energy conservation building codes are crafted. The changes would decrease input from local governments, which have previously pushed for aggressively greener...

New ICC framework sidelines local government participation in energy code development

News / March 4, 2021

NBI strongly opposes changes, which make action on climate “non-mandatory” The International Code Council (ICC) announced today a new framework that changes the essential nature of the International Energy Conservation Code (IECC) development process from a model energy code to...

New Stretch Code Will Mean Low-Carbon Buildings

News / February 25, 2021

Published by NRDC Expert Blog: Transitioning America’s buildings away from burning fossil fuels for heating and water heating, toward equipment powered by increasingly clean electricity is key to meeting the nation’s climate goals, including President Biden’s commitment to net-zero carbon...

Institute scribes Energy Conservation Code language for net-zero buildings

News / February 15, 2021

Published by Concrete Products: The New Buildings Institute presents its just-released Building Decarbonization Code as a groundbreaking tool for delivering carbon neutral performance and 2021 International Energy Conservation Code (IECC) overlay. NBI aims to help states and cities working to...

NBI releases code language that achieves carbon neutral buildings

News / February 11, 2021

The new Building Decarbonization Code works as an overlay to the 2021 IECC for residential and commercial construction projects.  New Buildings Institute (NBI) released today new code language that serves as a building decarbonization overlay to the 2021 International Energy...

North Carolina panel moves to weaken building energy conservation rules

News / January 7, 2021

Published by Energy News Network: A change to North Carolina’s building code would let developers skimp on insulation and other energy-saving basics in exchange for flashier elements such as solar panels and super-efficient appliances. It highlights the role developers are...

What Architects Need to Know About IECC 2021

News / November 20, 2020

Published by Architect Magazine: By the end of this year, the latest edition of the International Energy Conservation Code will be available. Updated every three years, the IECC is designed to assist state and local governments to regulate energy use...

EVs dealt major blow in building code ruling

News / October 22, 2020

Published by Energywire: In a setback to clean energy advocates, gas industry and homebuilder associations blocked an effort this month to prepare new homes and commercial buildings for a future wave of electric vehicles, stoves and heaters. “There’s going to...

Inside the climate battle quietly raging about US homes

News / October 14, 2020

Published by The Guardian: Some challenges to US climate action are obvious. But many more play out behind the scenes. One of those is the battle over efforts to make America’s new homes and buildings more energy-efficient. On one side...

Fierce Fight Over Model Building Codes Nears Final Round

News / August 28, 2020

Published by Energywire: Natural gas interests and housing developers will mount a last-ditch effort next week to prevent U.S. model building codes from including new provisions to promote the electrification of cars, stoves and water heating. Though voluntary and little...

New Energy Code Is More Robust and Flexible than Previous Versions

News / February 25, 2020

Published by Engineering News-Record: The new International Energy Conservation Code (IECC), expected to be ready for adoption later this year, provides both residential and commercial builders more flexibility in making their projects more energy efficient and for the first time...

This Year’s Model: Key Standard Advances

News / February 21, 2020

Published by Commercial Property Executive: One of the most influential documents for energy practices is on track for its next upgrade. The International Energy Conservation Code, widely used by public agencies as a model for building performance, has been received...

Getting to zero carbon buildings requires zero carbon codes

News / January 30, 2020

Published by Foresight: Two-thirds of countries do not have energy building codes. This needs to change if buildings are to become part of the solution to the climate crisis, argues Jim Edelson, Director of Codes and Policy at New Buildings...

2021 Energy Code sets table for double-digit efficiency gains

News / January 20, 2020

Published by Concrete News: Approved 2021 International Energy Conservation Code ballot items will bring an estimated 10 percent or greater efficiency improvement for residential and commercial building envelopes in jurisdictions abiding the code. IECC changes will lower building energy use...

All New Homes Should be EV-Ready, Says International Code Council

News / January 17, 2020

Published by The Driven: The leading international organisation for building codes and standards says that all newly constructed homes should be EV-ready, and guidelines have been recently accepted by US local governments to ensure electric vehicles (EVs) are taken into...

US local governments vote in favour of new 2021 buildings efficiency code

News / January 9, 2020

Published by Smart Energy International: New Buildings Institute has announced that US local governments have voted in favour of the new 2021 International Energy Conservation Code (IECC). The new standard is expected to bring an estimated 10% more efficiency improvement...

Local Governments Vote Resoundingly for Improved Efficiency in National Model Energy Code

News / January 6, 2020

Voting results on the 2021 International Energy Conservation Code (IECC) are in, and the approved proposals will bring an estimated 10% or more efficiency improvement for both residential and commercial buildings that follow the IECC. These changes will lower building...

ASHRAE 90.1 Update Pushes Building Efficiency Above and Beyond

News / November 6, 2019

Published by facilitiesnet: For the first time ever, ASHRAE 90.1 will require commissioning. With about 100 other updates from the 2016 version, ANSI/ASHRAE/IES Standard 90.1-2019, Energy Efficiency Standard for Buildings Except Low-Rise Residential Buildings, has a reinvigorated focus on exceeding...

Code Officials: Here’s Your Chance to Be a Climate Hero

News / October 24, 2019

Published by NRDC: Buildings are responsible for about 40 percent of U.S. carbon emissions, and once built, they last a long time—60 to 100 years or more. To solve the climate crisis, we need buildings to use far less energy...

San José Adopts Strongest Building Code Among Large Cities

News / September 18, 2019

Published by NRDC: San José has successfully reached for a modern, more sustainable building energy code; its City Council voted to adopt requirements for builders that will provide San José residents with clean, affordable energy in buildings and make good...

How Cities Can Improve Homes

News / September 5, 2019

Published by GreenBiz: The way we use energy makes a big difference in our lives in how safe, comfortable and productive we are. In addition to impacting our individual lives, energy use in homes makes up a large part of...

IECC Committee Approves EV Charging Proposal

News / May 25, 2019

Published by Facility Executive Magazine: During the first week of May 2019, International Code Council (ICC) code hearings were held in Albuquerque, NM to determine which of the proposed code amendments will be considered for adoption in the 2021 model...

Energy Code Development Begins: Focus on Residential

News / May 23, 2019

Published by NRDC: Code officials, builders, energy efficiency advocates, and others weighed in this month on proposals to update the next model building energy code. NRDC and many others submitted proposals to the International Code Council back in January, offering...

It’s Time to Update the Energy Code to the Best One Yet

News / February 14, 2019

Published by NRDC: Building energy codes set minimum energy efficiency requirements for new and renovated residential and commercial buildings, which means buildings meeting the most updated code versions use even less energy to keep the lights on and their inhabitants...

RESTalk Interview with Eric Makela

News / October 22, 2018

Eric Makela, Associate Director, takes us on a journey through energy codes in a RESTalk interview. Learn how HERS raters influence the development of the IECC and more. Eric is the perfect tour guide, as he has spent the last...

What Will It Take to Make Buildings Carbon Neutral?

News / September 14, 2018

Published by CityLab: Last month, 19 cities signed a declaration to make all new buildings carbon neutral by 2030. So what happens next? If cities are going to curb the rise of global temperatures to less than 2 degrees Celsius,...

The Push and Pull of Building Performance

News / March 1, 2018

Published by Metal Architecture: Energy codes are often thought of as bringing up the rear, preventing the worst from happening, but not as drivers of innovation. Randy Croxton, FAIA is famously quoted for his astute observation, “Building to code means...

Stretch Codes Emerge as a High Impact Strategy for Energy Savings

News / February 26, 2018

Published by BuildingEnergy Magazine: For decades, local energy codes have defined the least efficient structure that could be legally built. Although codes have become stricter, they still fall short of industry experts’ recommendations toward zero-net energy. For projects that cannot...

A New Metric for Tracking Net-Zero Energy Codes

News / December 15, 2017

Published in Green Energy Times (pages 26 & 27): ACEEE’s 2017 State Energy Efficiency Scorecard was released in late September with Massachusetts leading based on six categories including utility programs, transportation, building energy codes, combined heat and power, state initiative...

NBI Stretch Code a Tool for Accelerating Efficiency Standards

News / November 15, 2017

Published in Building Design + Construction: The 20% Stretch Code, a new set of standards developed by New Buildings Institute (NBI), offers a tool for accelerating the use of more energy efficient designs in new buildings.

Could Stretch Codes Supercharge the Green Building Marketplace

News / November 10, 2017

Published in GreenBiz: Stretch codes are a promising solution that jurisdictions can use to drive better energy performance in the built environment and set a long-term vision for efficiency stringency in buildings further into the future. NBI released a model...

See How Local Building Codes Can Update Their Energy Requirements to be More Performance-Oriented, and How FMs May Need to Help Prove Compliance

News / November 7, 2017

Published in FMLink: A number of cities and states across the United States have begun to recognize that the current code-based mechanisms in place do not provide the means to help them achieve their energy performance goals for buildings, according...

New Stretch Code Measures Help Cities & States Fast-Track Building Energy Savings

News / November 6, 2017

With increasing pressure to deliver on energy and climate action goals, cities and states are turning to more stringent building energy codes as an effective strategy to increase building energy efficiency and accelerate progress on outcomes. By adopting forward-looking stretch...

NIBS, NBI Issue Guidance To Help Cities Achieve Energy Goals

News / November 1, 2017

Published in Facility Executive: New guidance document provides jurisdictions with a new approach to shift the focus towards buildings’ actual, measurable energy results.

NIBS, NBI Issue Guidance to Help Jurisdictions Achieve Energy Goals

News / November 1, 2017

Outcome-Based Path for Codes Focuses on Results, Looks at Building’s Actual Performance A number of cities and states across the United States have begun to recognize that the current code-based mechanisms in place do not provide the means to help...

The Federal Preemption Bind on Local Energy Policy

News / October 23, 2017

Published in Construction Executive: When it comes to energy efficiency in buildings, rapid technological advances are being undermined by outdated regulations. Decades-old federal laws currently prohibit states from setting energy standards for some of the most modern appliances, including heating...

Implications of Developments in National Model Codes for Historic Preservation

News / September 1, 2017

Published in the Alliance Review, a Quarterly Journal of the National Alliance of Preservation Commissions: Sean Denniston, Senior Project Manager, provides an overview of the impact of the model energy code on historic resources. Many historic buildings are inherently energy...

Going Green? Not So Fast, According to Federal Rule Structure

News / June 29, 2017

Published in Snips Magazine Blog: Ralph DiNola, CEO of New Buildings Institute, recently told me about a decades-old bump in the road: federal preemption rules. The organization outlined this setback in its recent white paper, “Federal Preemption as a Barrier to...

Local Energy Codes Hindered by Preemption Rules

News / June 22, 2017

White paper examines how the federal rule structure for appliances and HVAC equipment raise costs and limit improved energy performance Portland, OR—A white paper released today by New Buildings Institute (NBI) finds that federal preemption rules present a major barrier...

Forecasting Energy Policy in 2017: Energy Efficiency Still a Major Opportunity for FMs

News / March 23, 2017

Jim Edelson, Director of Codes and Policy, is quoted in this article from facilitiesnet. This is the first of a four-part cover story, looking at how the current administration policy may affect energy policy for the road ahead. Moves in federal...

The State of Technology: Outcome-Based Energy Codes and zEPI

News / August 1, 2016 / Energy Codes

This article focuses on two innovations in development over the last decade in energy codes: outcome-based energy codes and zEPI. It also features a graphic from New Buildings Institute’s “Energy Performance of LEED for New Construction Buildings”, which highlights how...

Institute Submits Outcome-Based Pathway for Inclusion in the 2018 IECC

News / April 5, 2016 / Energy Codes

Building on a multi-year, industry-wide effort to include an outcome-based pathway for energy compliance into the 2015 International Green Construction Code (IgCC), the National Institute of Building Sciences has introduced a similar proposal to be considered for inclusion in the...

What will energy codes look like in 2020?

News / October 29, 2015

Green building standards are influencing residential energy code, and vice versa. In this article published by Propane Jim Edelson, director of codes and policy at NBI, stated “It is likely that there will be a time in the next few...

IgCC Opens Compliance Pathway Based on Actual Energy Use

News / January 4, 2015

An outcome-based approach assures that buildings actually achieve energy targets, while relieving technical pressures on code departments, reported Environmental Business News. The 2015 International Green Construction Code (IgCC) will have a compliance option based on an outcome-based approach, officials announced...

Provisions adopted into the 2015 IgCC can assist progressive communities meet energy goals

News / December 2, 2014

Cities and states looking at energy efficient buildings to help meet energy goals are getting a boost from the 2015 International Green Construction Code (IgCC), reported RealEstateRama. Four critical proposals that will drive significant improvements in building energy performance were...

New 2015 IgCC can assist progressive communities to meet energy goals

News / November 25, 2014

November 24, 2014–Cities and states looking at energy efficient buildings to help meet energy goals are getting a boost from the 2015 International Green Construction Code (IgCC). Four critical proposals that will drive significant improvements in building energy performance were...

New Energy Code Approach Could Be Industry Game-Changer

News / October 14, 2014

When Seattle’s Supply Laundry Building opened in 1906, building codes looked rather different than they do today. And energy codes weren’t yet a gleam in even the most progressive politician’s eye. These days, however, after a full renovation and a...

Architects, Engineers Stand to Benefit from Potential IgCC Change

News / July 29, 2014

ConstructionPro Network reported that a proposed change to the International Green Construction Code (IgCC) could make it considerably easier for architects and engineers to make buildings more energy efficient. Among those supporting the proposed outcome-based compliance path in IgCC is...

New approach to energy code compliance clears hurdle

News / June 3, 2014

Outcome-based pathway would focus on a building’s energy performance once in occupancy May 15, 2014—Owners and design teams working toward high energy performance buildings have a potential new ally in the International Green Construction Code (IgCC). The development committee reviewing...

Industry Proposes Innovative Method for Implementing Green Construction Code

News / April 2, 2014

An “Outcome-based Pathway,” was submitted as a proposed code change to the International Green Construction Code (IgCC). It appears in the monograph of IgCC proposed changes that the International Code Council released March 15, 2014 for public review. This pathway...

New energy code includes historic gains for efficiency in existing buildings

News / October 22, 2013

Lighting controls and advanced HVAC also gain ground at 2015 IECC final action hearings October 17, 2013–Hearings to finalize the 2015 International Energy Conservation Code (IECC) wrapped up in Atlantic City last week with big wins for higher efficiency requirements...

NBI’s Core Performance adopted as part of Massachusetts stretch code

News / June 3, 2009

June 21, 2009–The Massachusetts Board of Building Regulations and Standards voted Tuesday to adopt a stretch energy code for the state that would make new commercial buildings under 100,000 square feet up to 30% more energy efficient than base standards...


2024 IECC proposals address energy use in budding industry

Post / February 14, 2022

With the rapid growth of new indoor agriculture facilities growing vegetables, cannabis and other plants, the increased demand for energy and carbon intensive lighting and dehumidification for plant growth has skyrocketed. Lighting can consume between 50-70% of an indoor grow...

Proposals to drastically cut GHG delivered to IECC committees

Post / October 13, 2021

This week, New Buildings Institute (NBI) submitted code change proposals to the International Energy Conservation Code (IECC) residential and commercial development committees. These proposals have the potential to drastically reduce greenhouse gas (GHG) emissions from the building sector and help...

Codes for Loads – Making Our Buildings Work with Renewable Power Grids

Post / July 22, 2021

Thirty states and the District of Columbia have adopted Renewable Portfolio Standards (RPS), policies that require or set goals for all energy supply to be renewable by a chosen date mostly within the next two decades. The Biden Administration earlier...

Stretch Codes: A Key Tool on the Path to Carbon Neutral Buildings

Post / December 16, 2020

Adopting energy codes that go beyond the base, or required minimum code, is proving to be an effective way to achieve energy savings and reduce carbon emission from the built environment. We have long been hearing about states such as...

Reduce Carbon in Existing Buildings and Put America Back to Work

Post / October 28, 2020

We all know too well of the health and economic impacts of the COVID-19 pandemic. These impacts are compounded by increasingly destructive wildfires, hurricanes, and flooding – so much so that nearly two-thirds of Americans – including more than half...

Implementing Building Performance Standards: Consistency is Key

Post / September 29, 2020

A building performance standard (BPS) provides a powerful solution for cities working to meet climate goals, achieve energy savings and reduce greenhouse gas (GHG) emissions. As a forward-looking policy for existing buildings, a BPS commits a city or state to...

Does the changing policy landscape pit efficiency against renewables?

Post / September 24, 2020

With cities and states pursing renewable portfolio standards and national calls to decarbonize the grid by 2035, does efficiency still matter with a clean grid? The first answer: yes, energy efficiency benefits are, as they have been for decades, delivering...

2021 Energy Code Progress Challenged: Climate and Affordability Stand to Lose Unless We Speak Up

Post / July 28, 2020

Update: See final result In December 2019, more than 1,000 government representatives from cities and states across the U.S. did something remarkable when they voted to improve the 2021 International Energy Conservation Code (IECC) by 10%. Since buildings account for...

Delivering Climate Solutions From Existing Buildings: No Time to Waste

Post / July 13, 2020

With buildings accounting for up to 75% of carbon emissions in U.S. cities, addressing carbon emissions from the built environment is essential to meet the goals of the Paris Agreement and limit the rise in global average temperature to below...

Improved Building Energy Model Code Challenged

Post / March 12, 2020 / Energy Codes

Update: See final result Better building codes mean lower energy bills, which results in lower costs for consumers and fewer carbon emissions for the planet. Sounds like a winning combination, right? That’s why we were delighted when the initial results...

2019 was the Year of Energy Codes and a Big Year for Efficiency

Post / January 7, 2020

At the beginning of last year, we predicted that 2019 would be a big year for building energy codes, and the results are extremely promising for states—and cities which control their own energy codes–that are working to achieve climate action...

Before December 6, Vote for Efficiency in the 2021 IECC

Post / November 20, 2019

After a lengthy stakeholder process, including recent public comment hearings in Las Vegas, registered voting members of the International Code Council (ICC) are now invited to weigh in on the 2021 International Energy Conservation Code (IECC) proposals. Updated every three...

Tips for Voters In the 2021 IECC Update

Post / November 8, 2019

The 2021 International Energy Conservation Code voting dates are set! Voting begins on Tuesday, Nov. 19 and ends on Friday, Dec. 6. If you are a Governmental Member Voting Representative (GMVR), please read through these tips to help ensure it...

Votes Matter for Better Buildings

Post / October 31, 2019 / Energy Codes

Building code officials, sustainability officers, builders, efficiency advocates and others are leaving Las Vegas after attending the International Code Council’s (ICC) annual conference and public comment hearings on the 2021 International Energy Conservation Code (IECC). Updated every three years, the...

A Must Read: Landreneau’s Roadmap for Cleaner, Stronger Buildings that Help Solve the Climate Crisis

Post / October 30, 2019

Reducing carbon pollution and improving resilience in residential and commercial buildings across the United States was the topic of a House Select Committee hearing on the climate crisis last month. The hearing, “Solving the Climate Crisis: Cleaner, Stronger Buildings,” featured...

NBI Helps Decision Makers Prepare for the 2021 International Energy Conservation Code (IECC) Update

Post / October 23, 2019

The 2021 International Energy Conservation Code (IECC) update is one of the most profound ways states and local governments can improve the comfort and health of residents, reduce costs for building owners and residents, and make progress toward climate action...

Public Buildings Portfolio Management Helps Cities Get on Track to Meet Climate Goals

Post / September 16, 2019

Hundreds of cities across the country have set bold, aggressive energy and climate goals. Yet most of these communities are not on track to meet their goals, according to the latest City Clean Energy Scorecard, released in July by American...

Is Your City and State Ready to Vote on the 2021 International Energy Conservation Code?

Post / August 22, 2019

State and local government representatives have the power to advance local energy codes and improve the comfort and health of residents by participating in and voting for efficiency proposals in the 2021 International Energy Conservation Code (IECC) update. But they...

U.S. Conference of Mayors Unanimously Resolves to Support Advancements to the 2021 International Energy Conservation Code (IECC)

Post / August 16, 2019

The U.S. Conference of Mayors (USCM) is known for tackling issues of national importance. Climate change is one of those critical issues that the mayors addressed at their 2019 annual meeting in Honolulu, Hawaii. On July 1, 2019, the USCM...

Making the Transition From Zero Energy to Zero Carbon Building Policies

Post / July 23, 2019 / Zero Net Energy (ZNE)

As the building industry transitions into a new era — one focused on delivering carbon-neutral buildings — building codes will continue to play a critical role. This is the third in a series of blog posts about the transformation occurring within...

Decarbonizing Buildings: A Changing Lexicon

Post / June 12, 2019

From kilowatts to carbon, the language we use matters. Building sector policies and programs across the nation are in the midst of a critical shift from delivering energy efficiency in terms of kWh, to policies and programs that seek carbon...

Key Takeaways From Recent IECC Code Development Hearings

Post / June 10, 2019

Code officials, architects, builders, engineers and energy conservation professionals gathered last month in Albuquerque for the International Energy Conservation Code (IECC)’s Committee Action Hearings. The proceedings were the first step in a lengthy stakeholder process to update the 2021 IECC,...

Efficiency and Carbon Reduction Goals Converge at the Built Environment

Post / April 17, 2019

With mounting evidence that immediate and aggressive action is necessary to address climate change, combined with a lack of leadership on this issue by the federal government, state and local governments are taking meaningful actions to adopt, honor, and meet...

A Small Window of Opportunity to Make Huge Gains in Climate Action

Post / March 19, 2019

Cities face unrelenting demands on policy priorities. Affordable housing, transportation, economic development, climate action, and other pressing issues compete for limited resources and funds. Now is a moment in time, however, when the opportunity to make significant progress toward carbon...

2019 is the Year of Energy Codes

Post / January 14, 2019

If there’s a defining theme for the building sector in 2019, it’s energy codes. Actions to update the rules that cities and states set to determine how effectively new residential and commercial buildings use energy are progressing on several fronts...

Four States Make Strides on Advancing Energy Codes

Post / December 5, 2018

Massachusetts, California and Rhode Island come out on top in the 2018 State Energy Efficiency Scorecard released this fall. The three states ranked high on six categories including utility programs, transportation, building energy codes, combined heat and power, state initiative and...

Michigan Is the Latest State to Embrace the Value of Clean Energy Portfolios

Post / May 23, 2018

This guest blog was originally published by Rocky Mountain Institute on May 22, 2018. How renewable energy can unlock customer savings and shareholder value in the Midwest Last Friday, Michigan’s two largest electric utilities, DTE Energy and Consumers Energy, announced...

NBI’s Legacy of Code Advocacy Lives On

Post / March 8, 2018 / Energy Codes

New Buildings Institute (NBI) has played an active and influential role in building energy codes since the day its doors opened in 1997. Jeff Johnson, one of its first executive directors, was an ardent codes advocate with a long track...

Outcomes Matter

Post / November 16, 2017 / Energy Codes

by Ryan M. Colker, Vice President of National Institute of Building Sciences We all know what it takes to lead a healthy life—eat your vegetables, exercise, and visit your doctor to monitor your cholesterol, blood sugar, weight and blood pressure....

Stretch Codes: A Disruptive Solution to Super Charge Green Building

Post / November 6, 2017 / Energy Codes

This week, thousands of building industry professionals will converge at Greenbuild 2017 to share their excitement and progress advancing green buildings. While the number of green buildings—energy-efficient, zero energy, LEED and ENERGY STAR-certified, etc.—has grown dramatically over the last decade,...

The Budding Energy Footprint of Indoor Agriculture

Post / April 7, 2017

Indoor agriculture energy usage is projected to grow substantially over the next several years, driven in large part (but not entirely) by the legalization of medical and recreational cannabis. Seven U.S. states and the District of Columbia have legalized recreational...

Energy Codes Must Evolve to Achieve Policy Goals

Post / September 23, 2015

Energy codes are anticipated to play a big role in the building performance targets adopted by many jurisdictions to reduce carbon impacts from the building sector. But as codes target deep efficiencies, conventional code language and enforcement mechanisms face significant...

Codes Make a Difference–A Big Difference

Post / April 6, 2015

Since its inception nearly 18 years ago, NBI has maintained a strong emphasis on energy codes. Current NBI staff and board members continue the focus established early on by the organization’s founders. We know codes make a difference—a big difference....

Vermont Leads the Way

Post / December 30, 2014

What do the State of Vermont and NBI have in common (besides a soft spot for counterculture energy nerds)? I’d answer that both are small in stature but have built legacies around aggressively pushing for codes and policies that promote...

2015 IgCC gives cities and states something to be thankful for

Post / November 25, 2014

As we move toward Thanksgiving this Thursday, the recent adoption of the 2015 International Green Construction Code (IgCC) gives cities and states a lot to be thankful for. Four critical proposals that will drive significant improvements in building energy performance...

Outcome-Base Compliance on the horizon for IgCC with electronic voting as last step

Post / October 16, 2014

Just two weeks ago code officials and government representatives from across the country gathered in Fort Lauderdale for the Final Action Hearings on the International Green Construction Code (IgCC). Most notably for the energy-related sections of this model energy code,...

The Energy Code Paradox

Post / September 17, 2014

What happens when compliance becomes a barrier to achieving energy performance in buildings? For over fifteen years, New Buildings Institute (NBI) has worked to advance energy codes in jurisdictions around North America. We’ve had some huge wins for higher efficiency...

Persuasive Communications and Building Codes

Post / August 6, 2014

NBI is deeply involved in energy code development in the commercial sector, including pursing an Outcome-Based Compliance Path for the 2015 IgCC. With more than half of U.S. states still with outdated building energy codes, employing the power of persuasive...

Getting serious about carbon emissions, EPA releases new proposal on clean power

Post / June 4, 2014

The U.S. Environmental Protection Agency (EPA) yesterday released its new Clean Power Plan proposal which is intended to cut carbon pollution from existing power plants–the single largest source of carbon pollution in the United States. New Buildings Institute (NBI) applauds...

Case StudiesView All

There are no case studies for Codes & Policies. Please see our other case studies below.

Automated Window Treatment Case Study

Case Study / June 1, 2021

Several manufacturers offer innovative window treatment solutions that allow daylight into spaces while controlling for glare and allowing views to the outdoors. In this case study, we focus on Indoor Sky’s Daylighter Shading System. The system has two parts: automated…

California State University Dominguez Hills—James L. Welch Hall

Case Study / June 1, 2021

The Welch Hall building on the CSUDH campus partnered with the project team to retrofit their existing Enlighted lighting system and manual shades to the INTER package – which included LED lighting with Luminaire-level lighting control (LLLC), solar-powered automated shades,…

Santa Ana City Hall Tower on 20 Civic Center Plaza

Case Study / June 1, 2021

The City Hall building in Santa Ana sought to improve their indoor environment and save on energy costs with automated shades, upgraded lighting fixtures and networked lighting controls. The project updated the existing T8 lamps to LEDs and controlled the…

Ultra-Low Energy Campus Case Study: King Open/Cambridge Street Upper Schools and Community Complex Case Study

Case Study / July 20, 2020

In 2015 the Cambridge city council voted to adopt a Net Zero Action Plan, requiring all city buildings to target net zero energy design by 2020. When the City issued the request for proposals for the new King Open/Cambridge Street…

Emerging Zero Net Energy School Retrofit Case Study: Los Osos Middle School

Case Study / January 24, 2018

The mild climate in coastal cities such as Los Osos makes ZNE performance a realistic target with minimal needs for heating and cooling. It should however be noted that in such mild climates payback on upgrades to heating systems can…

Emerging Zero Net Energy School Retrofit Case Study: Newcastle Elementary School

Case Study / January 24, 2018

With funding from California’s Prop 39, the Newcastle Elementary School District (ESD) issued a request for proposal to develop an Energy Expenditure Plan for their district. With a long list of deferred maintenance issues and budget challenges, Newcastle ESD was…

Emerging Zero Net Energy School Retrofit Case Study: Garden Grove School District

Case Study / January 24, 2018

Garden Grove Unified School District (GGUSD) is a large, low-income school district that has recently become a regional leader in Zero Net Energy. Among California’s 140 school districts with greater than 65% for Free & Reduced Price Meals, GGUSD was…

Radiant Cooling and Heating Systems

Case Study / September 13, 2017 / HVAC

Several buildings with radiant heating and cooling systems were studied under a California Energy Commission EPIC research project in 2016-2017 and those case studies are available here. While forced-air distribution systems remain the predominant approach to heating and cooling in…

Verified ZNE Building Case Study: North Face & VF Outdoors

Case Study / March 8, 2017

The North Face corporate facility is part of the VF Outdoor Campus in Alameda, California. The VF Outdoors Headquarters occupies 14 acres of the Harbor Business Park and includes a 160,000-square-foot, four-building development completed in 2012. A fifth building is…

Emerging ZNE Building Case Study: Environmental Innovation Center

Case Study / March 8, 2017

Completed in 2014, the Environmental Innovation Center (EIC) in San José, CA, is a local government-owned education and environmental resources center that is targeting zero net energy (ZNE) performance. The project contains a 10,000-square-foot new building and a retrofit of…

Emerging ZNE Building Case Study: California State Lottery District Office in Santa Fe Springs

Case Study / March 8, 2017

The California State Lottery District Office in Santa Fe Springs is a retrofit of an existing 12,840-square-foot warehouse and is one of the first state-owned and operated buildings to target zero net energy (ZNE). The Lottery partnered with LPAS Architecture…

Verified ZNE Building Case Study: Bagatelos Architectural Glass Systems Manufacturing Facility

Case Study / March 8, 2017

The Bagatelos Architectural Glass Systems (BAGS) manufacturing facility is a retrofit of a 1969 concrete warehouse that was renovated in 2008 to be a zero net energy (ZNE) building. The 63,000-square-foot Bagatelos Architectural Glass Systems manufacturing facility produces custom glass…

Verified ZNE Building Case Study: 435 Indio Way

Case Study / March 8, 2017

435 Indio Way in Sunnyvale, California, was built in 1973 as a research and development laboratory and office for Hewlett Packard. Like many buildings in the Silicon Valley, it is a simple one-story, tilt-up that since 2006 had been left…

Ultra-Low Energy School Case Study: Jeffrey Trail Middle School

Case Study / December 13, 2016

The Jeffrey Trail Middle School is a new school in the Irvine Unified School District (IUSD). The school was designed and constructed to meet the Collaborative for High Performance Schools (CHPS) performance standards for exemplary energy and water conservation. With…

Ultra-Low Energy School Case Study: Georgina Blach Intermediate School

Case Study / December 13, 2016

The Georgina Blach Intermediate School, part of the Los Altos School District, Iocated in Los Altos, California, serves 450 students in seventh and eighth grades. Facilities at the school were unimproved since their construction in 1958, 1962-63 and 1978 and…

Emerging ZNE School Case Study: George V. LeyVa Middle School Administration Building

Case Study / December 13, 2016

The George V. LeyVa Middle School Administration Building was designed to be one of the first zero net energy (ZNE) public school buildings in California as well as the first zero net emissions public school building in California. This leading…

Verified ZNE Case Study: West Berkeley Public Library

Case Study / December 13, 2016

The West Berkeley Public Library is the first verified zero net energy (ZNE) public library in California. Completed in late 2013, the 9,400-square-foot library produces as much or more energy than it consumes on an annual basis. To reach its…

Ultra-Low Energy School Case Study: San Francisco City College Multi-Use Building

Case Study / December 13, 2016

The San Francisco City College Multi-Use Building is a pioneering project for large, low-energy facilities. At 102,000 square feet, the building is one of the largest in the United States to rely nearly entirely on natural ventilation to meet fresh…

Verified ZNE Multifamily Case Study: zHome Multifamily Complex

Case Study / October 10, 2016

The zHome multifamily complex was the first zero net energy project of its kind in the United States. This complex is made up of 10 units and a shared community area. The design approach of the project centered on energy…

Verified ZNE Portfolio Case Study: Gundersen Health System

Case Study / October 10, 2016

Gundersen Health System is the largest portfolio of buildings striving to reach zero net energy performance on a district wide scale in North America. The portfolio is made up of 45 new and existing buildings and spanning more than 2.5…

Savings Verification for Performance Contracting

Case Study / December 23, 2015

Washington’s Department of General Administration supervised an energy system retrofit of Spokane’s Westlake State Hospital and then was responsible for verifying the energy savings resulting from the improvements. However, when the hospital’s energy management system experienced a partial loss of…

The Runaway Building

Case Study / December 23, 2015

EZ Sim showed its versatility and its accuracy when analyzing a building with run away winter energy bills. While the building was initially modeled using a traditional engineering method, EZ Sim provided a quicker alternative to identify the nature of…

EZ SIM – Shows Bonus Energy Savings for County Office Building

Case Study / December 23, 2015

When a county building’s facility manager wanted to know if it was time to upgrade the building’s heat pumps, EZ Sim’s detective work helped to uncover more savings in more places than she bargained.

New England Regional Council of Carpenters

Case Study / December 23, 2015

The New England Regional Council of Carpenters (NERCC) represents 22,000 carpenters, pile drivers, shop and mill men, and floorcoverers working in the New England states.

Gibney Family Vision Center

Case Study / December 23, 2015

The Vermont Association for the Blind and Visually Impaired (VABVI), a non-profit organization founded in 1926, is the only private rehabilitation agency to offer free training, services and support to visually impaired Vermonters of all ages. VABVI offices are located…

Fidelity Bank

Case Study / December 23, 2015

Fidelity Bank is one of the oldest and continually growing independent, local community banks in Central Massachusetts. In January 2007, the bank opened its new Corporate Center and Branch in Leominster, Massachusetts. The four-story building includes office space as well…

Duxbury Bay Maritime School

Case Study / December 23, 2015

Serving more than 1,800 students annually, the not-for-profit Duxbury Bay Maritime School aims to connect the community through educational and recreational programs with its primary resource, Duxbury Bay.

Child and Family of Newport County

Case Study / December 23, 2015

Child and Family of Newport County (CF) is a nonprofit organization dedicated to strengthening families and communities through services such as preschool childcare, counseling, home care for the elderly and disabled, substance abuse education, home-based child welfare, transitional housing for…

Abraham Lincoln Elementary School

Case Study / December 23, 2015

In September 2010, the Abraham Lincoln Elementary School opened its new green building, ready to accommodate 600 students. This new building includes masonry and steel construction, a 3,300 square foot state-of-the-art library and media center, a 5,700 square foot gymnasium,…

New Construction Project Directory & Case Studies

Case Study / December 23, 2015

Information about New Construction projects that have utilized Core Performance are available here and, when available, include links to case studies or project profiles.

Emerging ZNE K-12 School: Turkey Foot Middle School

Case Study / December 19, 2015

The Kenton County School District believes “schools should use less energy, demonstrate sound environmental practices and serve as a fundamental tool for learning.” Since the District had experience with a formal energy management program that saved over $2 million since…

Ultra-Low Energy Building: The Ramona

Case Study / December 19, 2015

The Ramona is a mixed-use development in the urban Pearl District of Portland, Oregon. The building hosts 138 units of affordable housing and two educational facilities. Portland Public Schools rents 13,000 SF for programs for children ages 3 to 6.…

Verified ZNE Retail Bank Branch: TD Bank

Case Study / December 19, 2015

TD Bank has been an environmental leader since 1990. As one of the ten largest banks in the United States, they chose to move beyond LEED certification to pilot a Zero Net Energy design for a retail bank branch in…

Emerging ZNE K-12 School: Dr. David Suzuki Public School

Case Study / December 19, 2015

The Dr. David Suzuki Public School combines readily available and demonstration technologies to create a school building that serves as a living laboratory for 550 students in Windsor, Ontario. The two-story kindergarten through 8th grade school includes classrooms, a gymnasium,…

Emerging ZNE Building: Rice Fergus Miller Office and Studio

Case Study / December 19, 2015

Rice Fergus Miller breathed new life into an abandoned 1948 Sears Automotive Center and positioned their new office solidly on the path to net zero. This urban infill transformation project took a dilapidated structure that had been abandoned for 23…

Verified ZNE School: Putney Field House

Case Study / December 19, 2015

The Putney Field House is located on a 461-acre parcel, with areas dedicated to forestry, education and agriculture. The site includes indigenous plantings and a production garden. The state-of-the art field house and wellness center was built to provide winter…

Verified ZNE Building: Leon County Cooperative Extension Office Building

Case Study / December 19, 2015

The mission of the Leon County Cooperative Extension is to educate the community about research performed at the University of Florida through interactive opportunities and demonstration sites. A recent retrofit of their 13,000 SF office was the perfect opportunity to…

Verified ZNE District: Anna Maria Historic Green Village

Case Study / December 19, 2015

The Anna Maria Historic Green Village is an unusual combination of historic restoration and modern technology. Owners Mike and Lizzie Thrasher have worked diligently to preserve four 100-year old buildings and merge history with state-of-the-art green technology, all while bringing…

Emerging ZNE Museum: Exploratorium

Case Study / December 19, 2015

When the Exploratorium outgrew its old location at the Palace of Fine Arts, the City of San Francisco offered to provide Piers 15 and 17 on its historic waterfront as a larger relocation option for the science museum. After structurally…

Verified ZNE Small Office Retrofit: Bacon Street Offices

Case Study / December 19, 2015

The Bacon Street Office project is a 4,500 SF retrofit of a single-story, 1950’s-era auto repair shop into a high performance office for the firm ARCHITECTS hannah gabriel wells. Through creative design strategies, renewable energy generation and with support from…

Verified ZNE Training Center: Zero Net Energy Center

Case Study / December 19, 2015

When it came time to upgrade their training facility, the IBEW Local 595 and NECA chapters targeted net zero energy. They wanted to demonstrate that this goal was achievable and train their electrical contractors on the latest, cutting-edge energy efficiency…

Verified ZNE Office: David and Lucile Packard Foundation

Case Study / December 19, 2015

When the Packard Foundation started thinking about building a new headquarters, they wanted to make sure the final product reflected the organization’s values. These include conserving the Earth’s natural resources over the long-term, providing a comfortable and healthy space that…

Ultra-Low Energy High Rise Office: The San Francisco Public Utilities Commission (SFPUC) Headquarters

Case Study / December 19, 2015 / Existing Buildings

The San Francisco Public Utilities Commission (SFPUC) headquarters is an ultralow-energy, Class A office building that pushes the norm in sustainable design. Located in downtown San Francisco, the 13-story building houses more than 900 employees who were previously located in…

Ultra-Low Energy Multifamily Residence: La Valentina North Townhomes

Case Study / December 19, 2015 / Existing Buildings

The La Valentine North Townhome project is the result of a partnership between SMUD and the owner/developer of the project, Domus Development LLC. The 18-unit affordable multifamily development is a research and demonstration project in SMUD’s Townhouse Home of the…

Verified ZNE K-12 School: Redding School for the Arts

Case Study / December 19, 2015 / Existing Buildings

Redding School for the Arts in Northern California connects education and arts for K-8 students in a community of 90,000 people. The school was originally created in August 1999 in response to the rapid decline of arts programs in local…

Verified ZNE Small Office Retrofit: DPR Construction

Case Study / December 19, 2015 / Existing Buildings

Acting as owner, designer and contractor, DPR rehabbed a near-obsolete, 1984 building into a vibrant, zero-net energy multi-tenant office. DPR’s new 24,000 SF tenant improvement includes an open office space along with 11 conference rooms, a large gathering area and…


Case Study / June 6, 2012

In March 2007, 31 staff at StopWaste.Org moved into a renovated building in downtown Oakland, California. Their goal was to transform a dilapidated, 14,000 SF, two-story structure into an attractive and environmentally responsible building. Built in 1926, the building is…

Case Studies of Applications for FirstView Software

Case Study / May 21, 2012

Several organizations and companies have utilized the FirstView™ software to analyze building energy performance. Some have relied on FirstView software for diagnostics to lead them to potential areas for improvement, while others have used FirstView software as a way to…

FirstView and USGBC Building Performance

Case Study / May 18, 2012

NBI's FirstView™ software and services have been used on over 200 LEED buildings involved in the U.S. Green Building Council’s Building Performance Partnership (BPP). BPP is a voluntary program designed to improve the performance of green buildings by providing a…

Lovejoy Building Case Study

Case Study / April 27, 2012

In Portland, OR a retrofit of the existing load-bearing brick structure required a major seismic upgrade in this building. The architects used this as an opportunity for an integrated response to advanced structural upgrades, enhanced user thermal comfort and improved…

Johnson Braund Design Group Case Study

Case Study / April 27, 2012

Johnson Braund Design Group (JBDG) in Seattle was able to dramatically improve their building’s energy performance, reduce operating costs and provide a test ground for energy-efficient design strategies to influence its clients. The JBDG Building now uses 69% less energy…

Christman Building Case Study

Case Study / April 27, 2012

The Christman in Lansing, MI is one of the few Triple LEED Platinum buildings designated by the USGBC LEED Program. The building is located in a climate zone comparable to Montana, northeast Washington and eastern Idaho, and its age and…

Aventine Case Study

Case Study / April 27, 2012

The Aventine in LaJolla, CA is a certified LEED Existing Building Platinum and has an Energy Star rating of 100, the highest possible, and uses just 23 kBtus/sf, 75% less than the national average for offices. Retrofits addressed high-energy loads…

1525 Wilson Boulevard

Case Study / April 27, 2012

This all-electric building in Rossyln, VA used a combination of energy efficiency strategies, including replacing HVAC and lighting systems and providing tenant education. Energy use was reduced by 35% in just one year, resulting in savings over $250,000 on energy…

Mercy Corps Headquarters

Case Study / April 27, 2012

This building in Portland, OR is 50% historic renovation and 50% new construction. The information in this profile addresses both the renovated and the new parts of the building. Pursuing energy efficiency supports their mission of sustainability, and lower operating…

Home On The Range

Case Study / April 27, 2012

This Project Profile builds on a case study prepared by USGBC, including data on energy performance for one year, and provides updated owner feedback and energy use data. The actual energy use of the building in Billings, MT, is 46…

Beardmore Building

Case Study / April 27, 2012

The Beardmore in Priest River, Idaho has the distinction of being one of the few buildings in the country that is both LEED Gold certified and on the National Register of Historic Places. The project demonstrates a very successful renovation…

200 Market Building

Case Study / April 27, 2012

The 200 Market building in Portland, OR, has made continuous energy retrofits and system improvements. These efforts have moved the building from an ENERGY STAR score of 79 in 2006 to a score of 98 (out of 100) in 2010,…

Joseph Vance Building

Case Study / April 27, 2012

Since its acquisition, significant investments have been made to renovate this building in Seattle to improve energy efficiency and environmental performance, as well as tenant experience. Occupancy increased from 68% to 96% and has seen increased rents, tenant retention and…

Alliance Center

Case Study / April 27, 2012

The Alliance for Sustainable Colorado launched a project titled “Modeling a Net Zero Future: Energy Efficiency in Existing Buildings” to explore options that will enable it to approach a zero-net energy goal. Several documents developed for the project are referenced…

Verified Zero Energy Building: IDeAs Z2 Design Facility

Case Study / April 26, 2012

IDeAs’ new headquarters in San Jose, CA was designed to meet 100% of its net energy requirements using renewable energy from photovoltaics.

A Zero Energy-Capable Building: Jane D’Aza Convent, House of Formation

Case Study / April 25, 2012

This series of smaller buildings in San Rafael, CA reflects a contemporary vision that includes a strong commitment to environmental responsibility.

A Zero Energy-Capable Building: Wampanoag Tribal Headquarters

Case Study / April 25, 2012

This building serves as an administrative, educational, and social center for the Wampanoag tribe, which has inhabited Martha’s Vineyard for hundreds of years. The design approach embodies the traditional Native American belief system of interdependence and respect for nature.

Verified Zero Energy Building: Omega Center for Sustainable Living

Case Study / April 25, 2012

Achieving net-zero energy required a design that eliminated waste and maximized the use of renewable energy resources. This building in Rhinebeck, NY is purposely compact, organized to harvest daylight, solar energy, and cooling breezes to reduce energy needs

A Zero Energy-Capable Building: Kirsch Center for Environmental Studies

Case Study / April 25, 2012

For this two-story building in Cupertino, CA the design process moved through six steps to responsibly approach carbon neutral operation and roughly track increasing cost effectiveness.

Ultra-Low Energy Building: Gilman Ordway Building at the Woods Hole Research Center

Case Study / April 25, 2012

In Falmouth, MA a 19th-century summer home is respectfully adapted with the addition of a contemporary office, laboratory, and common spaces. The integration of passive-solar and energy-conservation strategies, optimal performance, and onsite renewable power generation make this building 83% more…

Ultra-Low Energy School: Plano Elementary School

Case Study / April 25, 2012

Plano Elementary School serves 435 students in Warren County, Kentucky. The building includes 32 classrooms, 14 offices, six resource centers, media center, gym, server room, and cafeteria with kitchen. There are 20 public schools in this district and five of…

Ultra-Low Energy Building: Doyle Conservation Center

Case Study / April 25, 2012

This training facility showcases the organization’s conservation activities. The LEED Gold rating reflects the mission of the Trustees of Reservations, which is “To preserve for public use and enjoyment, properties of exceptional scenic, historic, and ecological value in Massachusetts.”

A Case For Deep Savings: 11 Case studies of Deep Energy Retrofits

Case Study / August 23, 2011

For NEEA’s BetterBricks program, New Buildings Institute investigated* 11 examples of energy retrofits in existing commercial buildings that, on average, use 50% less energy than the national average – most with an energy use intensity (EUI) of less than 40…

Measured Performance Case Study: Classroom & Office Building, UC Merced

Case Study / January 26, 2010

The Classroom and Office Building (COB) examined in this case study is one of five buildings in the initial phase of development at UC Merced. This case study examines the actual post-occupancy performance of COB in relation to design elements…

Measured Performance Case Study: Science & Engineering Building 1, UC Merced

Case Study / January 26, 2010

Science & Engineering (S&E) Building I is one of five buildings in the initial phase of development at UC Merced. This case study examines the actual post-occupancy energy performance of S&E in relation to design elements and objectives.

Tools & Guides

Model Government Zero Emissions Building Policy

Guideline / May 18, 2022

Released by New Buildings Institute, the Model Government Zero Emissions Buildings Policy provides plug-and-play policy language for jurisdictions considering taking a “lead by example” approach to building decarbonization. By using their own buildings to demonstrate how new technologies and operational…

Building Decarbonization Code

Guideline / August 26, 2021 / Energy Codes

The Building Decarbonization Code is a groundbreaking tool aiming to deliver carbon neutral performance. The Version 1.2 code language from NBI serves as a building decarbonization overlay to the 2021 International Energy Conservation Code (IECC) and is now compatible with…

40% Stretch Energy Standard

Guideline / February 14, 2019

The 40% Stretch Energy Standard is a set of stretch code strategies that target 40% better efficiency in commercial buildings than current national model energy codes. Stretch codes, also called reach codes, provide an opportunity to introduce advanced practices in…

20% Stretch Code Provisions

Guideline / February 14, 2019

The 20% Stretch Code Provisions describe a set of code strategies that represent a 20% performance improvement for commercial buildings over the ASHRAE 90.1-2013 code baseline (and approximately similar savings over the IECC 2015 baseline) that can be adopted by…

Moving Energy Codes Forward: A Guide for Cities and States

Guideline / June 4, 2018 / Energy Codes

In cities, the building sector is a major contributor to carbon emissions and energy use accounting for up to 40% of the total energy consumed. Some jurisdictions may have climate policies and climate action plans that set targets and lay…

Zero Energy Performance Index (zEPI) and zEPI Jurisdictional Scores

Online Tool / May 16, 2018 / Energy Codes

The Zero Energy Performance Index (zEPI) provides a scale for measuring commercial building energy performance and represents a fundamental shift in measurement of building efficiency as it sets energy targets for actual energy consumption rather than using a predictive energy…

Model Stretch Code Provisions for a 20% Performance Improvement in New Commercial Construction

Guideline / November 6, 2017 / Energy Codes

This summary document describes a set of code strategies that represent a 20% performance improvement for commercial buildings over the ASHRAE 90.1-2013 code baseline (and approximately similar savings over the IECC 2015 baseline).

Outcome-Based Codes for Cities

Guideline / November 1, 2017

Adjustments and modifications to the built environment provide significant opportunities for meeting energy reduction goals and objectives, since buildings comprise 40% of our nation’s primary energy consumption. This document provides jurisdictions with a new approach to shift their focus towards…


Guideline / December 19, 2015

COMNET is a quality assurance initiative to standardize building energy modeling, by creating consistent baselines relative to various energy codes and standards. COMNET extends and supports existing systems for assessing and rating the energy efficiency of new commercial and multifamily…