Successful Green Proving Ground program technology evaluations lead to the deployment of energy-saving technologies throughout the GSA portfolio. To date, eleven technologies have been identified as having broad deployment potential. As of 2015, technologies evaluated by GPG have been deployed in approximately 200 locations, resulting in annual energy savings of 152,000 MMBtu, and life-cycle energy cost avoidance of $44 million.
Technologies deployed and planned for deployment include:
Desk-based technologies and other electronics account for roughly 25% of a building’s electricity consumption and often continue to consume power even when turned off. Based on evaluation results that demonstrated a 26% reduction in workstation plug loads, more than 16,000 advanced power strips have been deployed throughout the GSA portfolio as of 2015.
Condensing boilers capture heat typically lost through steam, and were found to be cost-effective when just 3% to 5% more efficient than high-efficiency boilers. Based on the results of GPG’s evaluation, more than 60 condensing boilers have been deployed throughout the GSA portfolio as of 2015.
LEDs with integrated controls technology were found to reduce lighting energy consumption by 69% for GSA buildings. The technology has been deployed alongside a Total Workplace space consolidation project at the 911 Federal Building in Portland, OR.
Maglev chillers eliminate inefficiencies caused by friction, and demonstrate energy savings of 42%, compared to rotary-screw chillers. Based on the results of a GPG evaluation, almost 40 maglev chillers have been deployed throughout the GSA portfolio as of 2015, with an additional 76 pending installation.
Data centers consume roughly two percent of all energy used in the United States. Based on evaluation results that showed a 48% reduction in cooling load and a 17% reduction in overall energy use, wireless sensor networks have been installed at three data centers in GSA's portfolio.
* Deployed through Energy Savings Performance Contracts (ESPCs)