Ongoing Assessments

Automated Aerosol-Based Duct Sealing [PDF - 192 KB] seals holes and seams in ductwork up to ⅝” with a non-toxic, non-flammable sealant that is aerosolized into 4–10 micron-sized particles and distributed under pressure throughout the duct system.
Non-Metalized Window Film [PDF - 201 KB] increases window thermal performance with increased durability, reduced reflectivity, and no cell signal interference. The exterior version is an efficient option even on coated or dual-pane tinted glass.
Secondary Interior Window Framing with Advanced Glazing [PDF - 191 KB] incorporates vacuum-insulated glazing to improve the insulating power of low-performing windows without the expense of replacing the windows themselves. GPG is evaluating two new innovative implementations of secondary windows.
Snap-on Window Insulation Panel [PDF - 186 KB] improves the thermal performance of windows, while maintaining window transparency and operability.
Vacuum-Insulated Glazing [PDF - 190 KB] can replace the glass without having to remove the original framing and uses a 1/2” gas space to simulate insulation properties, improving acoustics and creating a more energy-efficient window.

Digital Energy Demand Management [PDF - 192 KB] integrates with building automation and control systems to provide real-time energy analytics and optimize energy utilization using artificial intelligence (AI) and machine learning (ML).
Grid-Interactive Efficient Buildings (GEBs) [PDF - 190 KB] deliver cost savings by leveraging technologies and strategies that provide continuous demand management and load flexibility. GPG is evaluating four different GEB solutions.
Net Zero Portfolio Analysis and Tracking [PDF - 187 KB] uses AI and building data to rank the potential for retrofits and onsite renewable projects across an entire building portfolio.

Battery-Buffered DC Ultra-Rapid Charger [PDF - 190 KB] reduces the impact of EV chargers on the overall power demand of a site or building by using a battery storage system.

Active Power Management [PDF - 205 KB] regulates incoming power and mitigates sags, swells, over voltage, under voltage, and phase imbalance.
Carbon Capture [PDF - 203 KB] collects C02 from boiler flue gas and turns it into potassium carbonate (aka pearl ash) to make fertilizers, soap, and other detergents.
CO2-Based Heat Pump [PDF - 205 KB] promises to increase heating and cooling efficiency by capturing and reusing thermal energy while reducing global warming potential. Using carbon dioxide as the refrigerant, this heat pump can deliver cooling down to -22°F and heating up to 250°F.
HVAC Pretreatment Dehumidification [PDF - 184 KB] controls the building’s humidity level by treating outside air before it enters the HVAC system.
Hydronic Additive [PDF - 202 KB] promises to improve the heat transfer properties of water to reduce energy use in closed-loop HVAC systems.
Nanofiber Air Filter [PDF - 187 KB] improves filtration effectiveness, while simultaneously improving energy efficiency by lowering airflow restriction.

Germicidal Ultraviolet (GUV) [PDF - 191 KB] uses next-generation LEDs and far-UV light to disinfect air without increasing ventilation and support healthier buildings while reducing energy use.
Internet-of-things (IoT) Lighting System [PDF - 193 KB] offers three levels of control to provide a future-proof solution, allowing functionality to be added as needs evolve.

Bi-directional EV Charging [PDF - 205 KB] turns EVs into energy storage assets, increasing resilience and lowering the cost of EV ownership.
DC Microgrid [PDF - 188 KB] connects on-site energy generation and storage devices to direct current (DC) loads, eliminating conversion losses and optimizing the efficiency of on-site power.
EV Charge Management [PDF - 201 KB] integrates embedded vehicle telematics with utility signals to optimize charging based on vehicle use, utility rates, and the carbon content of delivered power.
Modular Charging Station [PDF - 202 KB] combines a 4.3 kW solar array with lithium-ion battery storage and emergency power panels to deliver a grid-independent and transportable energy source.
Modular PV and Storage System [PDF - 187 KB] is a DC-coupled infrastructure that extends rooftop solar PV projects and offers the potential to expand grid resiliency.
Roof Edge Mounted Wind Turbines [PDF - 187 KB] employ spoiler technology that shapes the airflow closest to the roof, which is naturally faster at the edge. Airfoils on the turbines passively increase wind speed, maximizing energy production.
Single-Axis Solar PV Tracker [PDF - 203 KB] promises to increase commercial rooftop solar photovoltaic production by adapting a proven utility tracking technology with a new low-profile rocker design that reduces friction, motor size, and the cost of sun-tracking.

Catalyst-Based Scale Prevention for Cooling Towers [PDF - 192 KB] alters the chemistry of hard water to prevent calcite buildup.

Low-Embodied Carbon Bio-Crete [PDF - 192 KB] introduces a biologically derived alternative to ordinary Portland cement (OPC), which innovation replaces carbon-intensive pyroprocessing with a specialized process that uses enzymes and bacteria to grow durable cement at ambient temperatures.

The Center for Emerging Building Technologies’ three programs — Green Proving Ground (GPG), Pilot to Portfolio (P2P), and Applied Innovation Learning Lab (AILL) — enable GSA to make sound investment decisions in next-generation building technologies based on their real-world performance.

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