Building Envelope
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Electrochromic Windows for Office Space
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Facilities where outside views are critical.
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Savings vary
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N/A
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Building Envelope
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Electrochromic Windows for Land Ports of Entry
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Facilities where window glare compromises mission-critical outdoor visibility.
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N/A
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N/A
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Building Envelope
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Hi-R Low-E Window Retrofit System
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Buildings in cold climates with single-pane windows.
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41%
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7
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Building Envelope
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Low-E Window Film
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All Climates. Best payback for single-pane clear windows.
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29% perimeter HVAC savings
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2-6
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Building Envelope
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Lightweight Quad-Pane Windows
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New construction and major renovation
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24% heating and cooling
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1-3
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Building Envelope
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Lightweight Secondary Windows
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Retrofit for single-pane windows
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15% whole building
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7
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Energy Mgmt.
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Advanced Power Strips for Plug Load Control
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Deploy broadly.
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26-48%
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1-2
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Energy Mgmt.
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Chiller Plant Control Optimization System
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Centrifugal chillers with loads > 3 million ton-hrs/yr
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35%
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5
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Energy Mgmt.
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Submeters and Analytics: Full Panel
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Overtime utility billing.
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N/A
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N/A
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Energy Mgmt.
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Submeters and Analytics: Single-Circuit Meter
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Overtime utility billing.
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N/A
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N/A
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Energy Mgmt.
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Submeters and Analytics: Wireless CTs
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Fault detection and diagnostics.
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N/A
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N/A
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Energy Mgmt.
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Wireless Thermostats for Pneumatic Systems
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Facilities with pneumatic control.
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43-52% heating, 20% cooling
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2-10
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Energy Mgmt.
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Wireless Sensor Networks for Data Centers
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Data Centers.
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17% total, 48% cooling load reduction
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2
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HVAC
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Condensing Boilers
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End-of-life replacement of conventional boilers. Life-cycle cost effective when 3 -5 % more efficient than high-efficiency boilers.
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14%
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4-7
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HVAC
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Fan Belts: Synchronous and Cogged
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VAV Fans, retrofit with synchronous drive belts. CV Fans, replace at end-of-life with cogged V-belts.
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2-20%
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1-4
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HVAC
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High-Performing Commercial Rooftop Units
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End-of-life replacement
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26%
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3.8
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HVAC
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Software-Controlled Switched Reluctance Motor
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End-of-life replacement
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4%
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Immediate
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HVAC
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Small Circulator Pumps with Automated Control
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End-of-life replacement
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26-96%
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6
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HVAC
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Variable Refrigerant Flow
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Buildings that are 5,000 to 100,000 ft² with electric reheat in cold climates, with limited room for ductwork changes.
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34% projected relative to code-compliant HVAC
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N/A
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HVAC
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Variable-Speed Maglev Chiller
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End-of-life replacement of rotary screw chillers.
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42%
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5
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HVAC
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Variable-Speed Direct-Drive Screw Chiller
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End-of-life replacement for water-cooled chillers
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35% better than FEMP-standard, comparable to MBC chiller
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2
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Lighting
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Advanced Lighting Controls and LED
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Facilities with high utility rates.
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43% compared to LED baseline
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7
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Lighting
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LED Downlight Replacement Lamps for CFL Fixtures
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Where advanced lighting controls are not desired or useful.
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40-50%
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3
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Lighting
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LED Fixtures with Integrated Advanced Lighting Controls
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Consider for retrofits with EUI > 3.25 kWh/ft²/yr and utility rates > $0.10 kWh.
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69% over GSA average
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9-12 Retrofit; 2-3 New Construction
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Lighting
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TLED Lighting Retrofits with Dedicated Drivers
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Fixtures where lenses and sockets are in good condition and ALC is useful.
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27-29%
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6
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Lighting
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Wireless Advanced Lighting Controls
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Integrate with LED. Consider for retrofits with EUI > 3.25 kWh/ft²/yr and utility rates > $0.10 kWh.
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54%, 78% with LED
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3-6
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On-Site Renewables
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Honeycomb Solar Thermal Collector
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Central hot water systems with electric heating and large uniform loads.
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N/A
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10
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On-Site Renewables
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Photovoltaics
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Price should drive PV selection. PV effective even in 4-season climates.
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N/A
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10 in 2015 (19 @ 2011 pricing)
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Water
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AWT: Salt-Based & Chemical Inhibition for Cooling Towers
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Consider for all cooling towers–both salt-based and chemical-scale inhibition systems can be retrofitted to any cooling tower.
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23% water savings
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3
|
Water
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AWT: Advanced Oxidation Process for Cooling Towers
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All cooling towers. Service plan should include leasing the system. The cost of AOP service+leasing approximates the cost of traditional chemical treatments.
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26% water savings
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2
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Water
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AWT: Catalyst-Based Scale Prevention for Domestic Hot Water Systems
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Facilities with hard water > 121 MG/L.
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N/A
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2
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Water
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AWT: Electrochemical for Cooling Towers
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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.
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32% water savings
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2.5
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Water
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AWT: Monitoring & Partial Softening
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All cooling towers. Continues standard and familiar water treatment practices and may offer an easier and more failsafe deployment opportunity for GSA facilities.
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15% water savings
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3
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Water
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Weather Station for Irrigation Control
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Turnkey weather-based irrigation systems recommended. Areas with intermittent rain will have higher savings.
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20-40% savings projected
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2-4
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