The Electric Power Research Institute (EPRI), 8 automakers and 15 utilities are working to develop and demonstrate an open platform that would integrate plug-in electric vehicles (PEV) with smart grid technologies enabling utilities to support PEV charging regardless of location. The platform will allow manufacturers to offer a customer-friendly interface through which PEV drivers can more easily participate in utility PEV programs, such as rates for off-peak or nighttime charging. The portal for the system would be a utility’s communications system and an electric vehicle’s telematics system.
As the electric grid evolves with smarter functionality, electric vehicles can serve as a distributed energy resource to support grid reliability, stability and efficiency. With more than 225,000 plug-in vehicles on U.S. roads — and their numbers growing — they are likely to play a significant role in electricity demand side management.
The platform enables integration across multiple communication pathways, such as automated metering infrastructure (AMI), home area networks, building energy management systems, and third party entities that aggregate energy management services for commercial and industrial power customers. Researchers anticipate that grid operators in the future may call on electric vehicles to contribute to grid reliability by balancing solar and wind generation, mitigating demand charges and providing ancillary services such as frequency regulation and voltage support.
Utilities and regional transmission organizations participating and supporting in the software and hardware development and demonstration include DTE Energy Company, Duke Energy, PJM Interconnection LLC, CenterPoint Energy, Inc., Southern Company, Northeast Utilities, Southern California Edison, Pacific Gas & Electric Company, San Diego Gas & Electric, Commonwealth Edison, TVA, Manitoba Hydro, Austin Energy, Con Edison and CPS Energy.
Auto manufacturers are American Honda Motor Co., BMW Group, Chrysler Group LLC, Ford Motor Company, General Motors Co., Mercedes-Benz Research & Development North America, Inc., Mitsubishi Motors Corporation, and Toyota Motor Engineering & Manufacturing North America, Inc.
"A key aspect of the platform's benefits will be giving customers flexibility and choices," said Dan Bowermaster, EPRI manager of Electric Transportation. "It can help the PEV customer determine the value of using their parked vehicle as a grid resource, and help the industry develop a convenient, user-friendly customer interface. We see this as the foundation for future developments to integrate PEVs with the grid."
Additionally, it could increase service reliability to customers by helping to mitigate the impact of strain on the grid during peak periods and could contribute to curbing greenhouse gas emissions. Utilities might benefit by better managing their loads and avoiding upgrades to infrastructure –savings that can be passed onto utility customers.
Sumitomo Electric will develop the core platform technology on the first phase of the project.
This software platform aligns with the Vehicle Grid Integration (VGI) Roadmap Initiative of the California Public Utilities Commission and the California Independent System Operator, as well as conforming with standards set by IEEE, IEC/ISO, and SAE, and Open ADR Alliance, making it globally applicable.