The U.S. Department of Energy (DOE) has released the Phase III report from the solid-state lighting (SSL) demonstration of LED streetlights in Oakland, CA, according to an email I recently received from Jim Brodrick at DOE.

The GATEWAY demonstration report, prepared by Pacific Gas & Electric and Energy Solutions, provides an overview of project results measured over a 12-month period, including comparison to Phase II luminaires, energy consumption and illuminance levels, and economic analysis.

In this project, four LED fixtures on one of the Phase II streets were replaced with next-generation LED luminaires (58 watts) from the same manufacturer, with the same chip and driver.

Key findings include:

• Energy savings increased by 25% relative to Phase II (LED luminaire wattage dropped from 78W to 58W) and by 52% relative to the baseline system (from 121W to 58W)
• Luminaire cost decreased by 34% between Phase II and Phase III (from $610 to $400)
• Lighting performance was maintained

Check out the photos below for a quick before/after. The difference in lighting quality is compelling.

Click here to download the complete report (PDF).

Click here to learn more about DOE’s GATEWAY demonstration program.

leddemonstration