Resource Library

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Publish Date: December, 2009

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.

Publish Date: October, 2009

A synopsis of the comprehensive and integrated  revisions to the International Energy Conservation Code (IECC) submitted by NBI, the American Institute of Architects (AIA) and the U.S. Department of Energy (DOE).

Publish Date: September, 2009

The year-long study, "Energy Performance of LEED for New Construction Buildings," suggests significant opportunities for program improvement, even while it is clear that LEED is having a positive impact on building energy performance. As this information has been made publicly available, several common questions have been asked about how LEED data was summarized in the report. While many of the answers to these questions are addressed in the report itself, we have developed a factsheet of Frequently Asked Questions to facilitate access to the answers.

Publish Date: August, 2009

Green building program energy efficiency strategies often use integrated design, precluding the measurement of results simply from deemed savings of specific measures. This paper describes the use of whole-building measured energy use, by month and fuel, to evaluate the achievements of high performance building programs at both the individual building and program level.

Publish Date: July, 2009

Under a project for the U.S. Environmental Protection Agency, NBI researched trends and new technologies in advanced metering as used in energy information systems (EIS).

Publish Date: March, 2009

This research is part of an effort to develop a reliable commercial rooftop unitary (RTU) field service/repair (also known as “retrocommissioning”) protocol, along with a higher level of confidence in the associated energy savings necessary to justify RTU service programs. This report documents the results of the Phase 2 project.

Publish Date: February, 2009

This white paper, also known as "My Car Is Smarter Than Your Building," looks at the lessons controls-savvy cars can teach us about how high performance and enlightened controls standards can lead to more energy efficient buildings.

Publish Date: October, 2008

This specification is proposed for commercial packaged rooftop units equal to or smaller than 135,000 Btu/h. It is intended to improve in-field energy performance for customers and utilities by increasing reliability, maintainability and performance/conditioning monitoring including advanced fault detection.

Publish Date: August, 2008

This paper presents a study of whole building energy use of various completed LEED buildings throughout the nation. The paper focuses on the relationships between predicted and actual energy performance of 90 completed LEED certified buildings. The results of the study impact the ongoing discussion on how design industry can act in response to the Architecture 2030 challenge along with other carbon reduction goals.

Presented at the 2008 ACEEE Summer Study on Energy Efficiency in Buildings.

Publish Date: August, 2008

Is LEED delivering actual energy savings? This study addresses that question with a post-occupancy assessment of 121 LEED buildings across the country. Input to the study consisted of energy bills and brief descriptions of actual building use from owners, plus modeled energy usage information from the USGBC’s LEED submittal files. The actual building performance was viewed through several whole-building metrics: energy use intensity (EUI) relative to national averages, Energy Star ratings, and energy use levels relative to the initial ASHRAE 90.1 modeling.

Presented at the 2008 ACEEE Summer Study on Energy Efficiency in Buildings.