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Project Info ACTIVE Project Title

Performance Evaluation of Advanced HEMS

Project Number ET22SWE0055 Organization SWE (Statewide Electric ETP) End-use Whole Building Sector Residential Project Year(s) 2022 - 2025
The proposed project is a laboratory evaluation of advanced home energy management systems (HEMS) that will quantify the electrical efficiency associated with advanced distributed energy resource (DER) management features and assess claims of interoperability across a range of communication protocols. These systems provide one or more of the following features: home energy and demand management; grid services such as event- or price-based load shifting and demand response; interoperability with other home appliances and appliance-specific controls; integration and consolidated management of DERs such as solar photovoltaics (PV) and battery energy storage (BES); and bi-directional, electric vehicle (EV) charging; all-of-which combine to deliver improved residential energy efficiency, load flexibility, and GHG reductions. In addition, these new systems can make homes more resilient during grid outages by automatically switching loads to local battery storage when the grid is unavailable. Advanced HEMS are currently under development by multiple companies and certain companies are marketing the technology today. Currently available technology is in prototype form and in need of independent testing to validate performance and quantify benefits.  The predominant metrics will include electrical efficiency (%), annual energy saved (kw-Hr), peak load reduction (kW), GHG reductions (focused on SGIP signal), and an estimate enabled load flexibility. Outcomes will also include recommendations for improving the technology to better ensure commercial products provide significant benefits that will justify utility program support and increase market adoption across California.
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  • Southern California Edison Company logo
  • Southern California Gas Company logo
  • San Diego Gas & Electric Company logo
  • Sacramento Municipal Utility District logo
  • Los Angeles Department of Water and Power logo
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The ETCC is funded in part by ratepayer dollars and the California IOU Emerging Technologies Program, the IOU Codes & Standards Planning & Coordination Subprograms, and the Demand Response Emerging Technologies (DRET) Collaborative programs under the auspices of the California Public Utilities Commission. The municipal portion of this program is funded and administered by Sacramento Municipal Utility District and Los Angeles Department of Water and Power.