SwRI reaches milestone in EV-grid energy management

  • 23-Sep-2013 04:16 EDT
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Boulder Electric Vehicle is one of the companies supplying EVs for the V2G project at Fort Carson Army Base in Colorado.

Southwest Research Institute says it has deployed the first electric-vehicle aggregation system using SAE International’s J1772 standard for dc fast charging. The system, part of the Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) Phase II program, is controlling five fast-charge stations at the Fort Carson Army Base in Colorado Springs, CO. The word aggregation refers to the ability of the system to see multiple EVs as a single energy source. In August, the system passed integration and acceptance testing, successfully aggregating electric vehicles from two vehicle manufacturers equipped with SAE-compliant bidirectional charging interfaces. “The SwRI aggregation system manages a fleet of electric vehicles, controlling both vehicle charging and microgrid needs and supporting vehicle schedules, as well as supplementing the base’s energy supply,” said Sean Mitchem, project manager and a principal analyst in SwRI’s Automation and Data Systems Division. Batteries in the EVs serve as cushion against fluctuations in the grid, creating more stability and resiliency while improving the grid’s ability to accommodate renewable energy from a solar energy array at the base. “Using this new technology, electric vehicles can use or store this green energy more efficiently than previously was possible,” Mitchem said.

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