New Products Leverage LED’s Unique Qualities

Post / December 17, 2013

Recently, I had the long-awaited opportunity to see new lighting products that apply LEDs in ways that leverage their unique qualities: tiny size, strong directional nature and high efficiency potential for a new aesthetic. Coming out of the DOE SSL...

Fault Detection and Diagnostics

Post / November 14, 2013

Work initially done in California to improve economizers and support fault detection and diagnostics (FDD) on commercial rooftop HVAC units has now been applied at a national level. A recent adoption of the International Energy Conservation Code (IECC) requires economizer...

Bubbles at the NBIL! Evaporative Sidecar Testing for Retrofitting Rooftop Units

Post / September 5, 2013

We have seen the future and it is bubbly. This summer we’ve been busy testing the effectiveness of using an indirect evaporative air conditioner to retrofit an existing 5-ton rooftop unit (RTU) in the western Washington and Oregon climate. Testing...

Rooftop Unit (RTU) Retrofits = Big Savings for Owners and Tenants

Post / April 25, 2012

We already know that the efficiency potential for rooftop units (RTUs) is huge. They sit atop about half of the commercial floor space across the United States and since they’re often neglected, less than optimal performance leaves building owners and...

Window Volume Purchase Program Working to Lower Cost, Improve Availability

Post / May 18, 2010

R-5 windows can reduce average heat loss by 30-40% over common ENERGY STAR-qualified products (with an R-3 value), and low-e storm windows have the potential for twice the energy savings of those without a low-e coating, according to Department of...