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The Green Proving Ground program leverages GSA's real estate portfolio to evaluate innovative sustainable building technologies.
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GSA’s Green Proving Ground Program
Putting Innovative Building Technologies to the Test
Overview
GPG leverages GSA’s real estate portfolio to evaluate innovative technologies that accelerate GSA’s sustainability goals, reduce operational costs and lead market transformation.
Established in 2010
Green Proving Ground
GSA Targets
Executive Order 13514, 2009Energy Independence and Security Act, 2007MOU on High Performance and Sustainable Buildings, 2006Energy Policy Act, 2005www.wbdg.org/references/federal_mandates.php
30%Reduction in Energy Use Intensity, by 2015
26%Reduction in Water Use Intensity, by 2020
28%Reduction in Scope 1 and 2 GHGs, by 2020
Net ZeroAll capital project designs starting 2020Achieve net zero by 2030
How Does it Work?Innovative building technologies are evaluated within the real world operating environment of GSA’s real estate portfolio. Successful technologies:
Increase environmental performance
Decrease operational costs
Improve tenant satisfaction
Have potential to transform markets through limited or broad deployment
Green Proving Ground
What Are We Looking For? Technology Types
Green Proving Ground
EFFICIENT TECHNOLOGIES
• Lighting• HVAC• Building
Envelope• Energy
Management
• Water
ASSESSMENT & DESIGN TOOLS
• Auditing & benchmarking
• Meters and sensors
• Retrofit design tools
OPTIMIZED OPERATIONS
• Information & management systems
• Behavioral interventions
SUPPLY & DEMAND
INTEGRATION• On-site
generation & storage
• Demand response & ancillary services
• Microgrid
Translation: Product demonstration – pre & early
commercial
Adoption: Emerging market place as technology
begins to be adopted
Diffusion: Well defined commercial product – sub-
optimal market penetration
What Are We Looking For? Technology Maturity
Green Proving Ground
Deployment of “Proven” Technologies
Green Proving Ground
Choose the best in class performance and payback, from
the beginning
Introduce technologies that
immediately improve
performance
Retrofit
Next time you need to replace
this equipment, invest in this
technology instead
Replace at End of Life
New Construction
BUILDING ENVELOPE Vacuum Insulated Panels, 03.14
Chromogenic Windows, 03.14
High R Value Windows, 12.13
ENERGY MANAGEMENT Wireless Sensor Networks, 03.12
Plug Load Control, 09.12
LIGHTING Occupant Responsive Lighting, 09.12
GPG Technology Evaluations
Completed
HVAC Indirect Evaporative Cooler, 03.14
Synchronous & Cogged Fan Belts, 03.14
Variable Speed Mag-Lev Chiller, 12.13
Variable Refrigerant Flow, 12.13
Condensing Boilers, 12.12
ON-SITE ENERGY CONSUMPTION PV Guidance, 12.13
Photovoltaics, 12.12
GPG Technology Evaluations
Ongoing
BUILDING ENVELOPE Glazing Retrofit Coating
ENERGY MANAGEMENT Central Plant Optimization Strategies
ON-SITE ENERGY GENERATION & STORAGE
PV with Solar Water Heating Honeycomb Solar Thermal Collector
WATER Non-Chemical Water Treatment Wireless Moisture Sensing Irrigation BAS Integrated Weather Station
Irrigation
HVAC High efficiency RTU Modular Absorption Chiller Occupant-responsive HVAC controls Wireless Pneumatic Thermostat Wood-Pellet Fired Biomass Boiler
LIGHTING Integrated Daylighting Systems LED Luminaire w/ integrated controls LED Retrofit Luminaire Wireless Lighting Control Systems
Back Up SlidesGPG Technology Evaluations
SAMPLE PROJECT FINDINGS
Originally intended for refrigeration; thin profile, R-50 is 1”, Conventional R-50 is 15”
VIPS proved durable for roofing application
R-50 offers favorable payback in one-story buildings in regions with extreme climates and high utility costs
Recommended if R-50 required and conventional insulation necessitates costly alterations
Translation Phase : Building Envelope
VIPs for Roofing
Tint automatically based on outside temperature and brightness. Electrochromic (EC) use operable switches and automation systems; Thermochromic (TC) use adhesive coating
EC window reduction in heat gain — 58%; TC — 46%
TC windows were sensitive to surrounding surface geometry and ambient conditions which created an uneven appearance
GPG currently assessing next-generation EC technology, results in 2015
Translation Phase : Building Envelope
Chromogenic Windows
Eliminate heat, noise and vibration with magnetic levitation and improve efficiency with variable speed drive
Quiet performance allows chillers to be placed closer to occupant spaces
42% energy savings, < 5 year payback
Deploy as end-of-life replacement for rotary screw chillers
Adoption Phase : HVAC
Maglev Chillers
Energy savings over 7 locations between 27% - 63%
Largest savings at a call center where payback was < 7 years
Deploy at sites with operating days > 14 hours, utility costs > $0.11/kWh and variable occupancy patterns
Adoption Phase : Lighting
Occupant Responsive
Lighting
Schedule-based control, where users determine the day and time when a circuit is energized, found to be most effective.
26% energy reduction at workstations with advanced computer management already in place, 50% energy reduction in kitchens and printer rooms
Deploying at 80 federal facilities across the county
On GSA Schedule
Diffusion Phase : Energy Management
Advanced Power Strips
Dense network of wireless sensors provides real-time information enabling facility operator to better manage HVAC.
48% reduction in facility cooling load
3.4 years simple payback
Deploying at two GSA-operated data centers
On GSA Schedule
Diffusion Phase : Energy Management
Wireless Network
Sensors