GPG-Proven Technologies with GSA Deployment Potential
GPG measurement and verification results demonstrate deployment potential for GSA for the following technologies:
CATEGORY | TECHNOLOGY | DEPLOY WHERE? | ENERGY/WATER SAVINGS1 | PAYBACK2 |
---|---|---|---|---|
Building Envelope | Electrochromic Windows for Office Space | Facilities where outside views are critical. | Savings vary | N/A |
Building Envelope | Electrochromic Windows for Land Ports of Entry | Facilities where window glare compromises mission-critical outdoor visibility. | N/A | N/A |
Building Envelope | Hi-R Low-E Window Retrofit System | Buildings in cold climates with single-pane windows. | 41% | 7 |
Building Envelope | Low-E Window Film | All Climates. Best payback for single-pane clear windows. | 29% perimeter HVAC savings | 2-6 |
Energy Mgmt. | Advanced Power Strips for Plug Load Control | Deploy broadly. | 26-48% | 1-2 |
Energy Mgmt. | Chiller Plant Control Optimization System | Centrifugal chillers with loads > 3 million ton-hrs/yr | 35% | 5 |
Energy Mgmt. | Socially Driven HVAC for Personal Control | Prioritize where thermal comfort is an issue. Savings greatest in facilities that are intermittently occupied with high energy costs and narrow deadbands. | 20% cooling, 47% heating | Savings - $0.05 - $0.50 ft² |
Energy Mgmt. | Submeters and Analytics: Full Panel | Overtime utility billing. | N/A | N/A |
Energy Mgmt. | Submeters and Analytics: Single-Circuit Meter | Overtime utility billing. | N/A | N/A |
Energy Mgmt. | Submeters and Analytics: Wireless CTs | Fault detection and diagnostics. | N/A | N/A |
Energy Mgmt. | Wireless Thermostats for Pneumatic Systems | Facilities with pneumatic control. | 43-52% heating, 20% cooling | 2-10 |
Energy Mgmt. | Wireless Sensor Networks for Data Centers | Data Centers. | 17% total, 48% cooling load reduction | 2 |
HVAC | Condensing Boilers | End-of-life replacement of conventional boilers. Life-cycle cost effective when 3 -5 % more efficient than high-efficiency boilers. | 14% | 4-7 |
HVAC | Fan Belts: Synchronous and Cogged | VAV Fans, retrofit with synchronous drive belts. CV Fans, replace at end-of-life with cogged V-belts. | 2-20% | 1-4 |
HVAC | High-Performing Commercial Rooftop Units | End-of-life replacement | 26% | 3.8 |
HVAC | Software-Controlled Switched Reluctance Motor | End-of-life replacement | 4% | Immediate |
HVAC | Small Circulator Pumps with Automated Control | End-of-life replacement | 26-96% | 6 |
HVAC | Variable Refrigerant Flow | Buildings that are 5,000 to 100,000 ft² with electric reheat in cold climates, with limited room for ductwork changes. | 34% projected relative to code-compliant HVAC | N/A |
HVAC | Variable-Speed Maglev Chiller | End-of-life replacement of rotary screw chillers. | 42% | 5 |
HVAC | Variable-Speed Direct-Drive Screw Chiller | End-of-life replacement for water-cooled chillers | 35% better than FEMP-standard, comparable to MBC chiller | 2 |
Lighting | Advanced Lighting Controls and LED | Facilities with high utility rates. | 43% compared to LED baseline | 7 |
Lighting | LED Downlight Replacement Lamps for CFL Fixtures | Where advanced lighting controls are not desired or useful. | 40-50% | 3 |
Lighting | LED Fixtures with Integrated Advanced Lighting Controls | Consider for retrofits with EUI > 3.25 kWh/ft²/yr and utility rates > $0.10 kWh. | 69% over GSA average | 9-12 Retrofit; 2-3 New Construction |
Lighting | TLED Lighting Retrofits with Dedicated Drivers | Fixtures where lenses and sockets are in good condition and ALC is useful. | 27-29% | 6 |
Lighting | Wireless Advanced Lighting Controls | Integrate with LED. Consider for retrofits with EUI > 3.25 kWh/ft²/yr and utility rates > $0.10 kWh. | 54%, 78% with LED | 3-6 |
On-Site Renewables | Honeycomb Solar Thermal Collector | Central hot water systems with electric heating and large uniform loads. | N/A | 10 |
On-Site Renewables | Photovoltaics | Price should drive PV selection. PV effective even in 4-season climates. | N/A | 10 in 2015 (19 @ 2011 pricing) |
On-Site Renewables | Wood-Pellet Biomass Boilers | Facilities in cold climates that use fuel oil and are located within 50 miles of a biomass pellet mill. | 85.6% efficiency at a 45% partial load. | 5 |
Water | AWT: Salt-Based & Chemical Inhibition for Cooling Towers | Consider for all cooling towers–both salt-based and chemical-scale inhibition systems can be retrofitted to any cooling tower. | 23% water savings | 3 |
Water | AWT: Advanced Oxidation Process for Cooling Towers | All cooling towers. Service plan should include leasing the system. The cost of AOP service+leasing approximates the cost of traditional chemical treatments. | 26% water savings | 2 |
Water | AWT: Catalyst-Based Scale Prevention for Domestic Hot Water Systems | Facilities with hard water > 121 MG/L. | N/A | 2 |
Water | AWT: Electrochemical for Cooling Towers | All cooling towers. Most cost-effective in areas with high water costs or where water is excessively hard, has high pH values and/or large amounts of total dissolved solids. | 32% water savings | 2.5 |
Water | AWT: Monitoring & Partial Softening | All cooling towers. Continues standard and familiar water treatment practices and may offer an easier and more failsafe deployment opportunity for GSA facilities. | 15% water savings | 3 |
Water | Weather Station for Irrigation Control | Turnkey weather-based irrigation systems recommended. Areas with intermittent rain will have higher savings. | 20-40% savings projected | 2-4 |
1Savings compared to incumbent technology or practice.
2Payback, expressed in years, is at average fuel cost ($0.11/kWh and $7.5/Mcf)
GPG enables GSA to make sound investment decisions in next-generation building technologies based on their real-world performance.