US Air Force Unveils World’s Largest Electric Vehicle-to-Grid Fleet

US Air Force Unveils Worlds Largest Electric Vehicle-to-Grid Fleet

And so it begins. For years weve talked about the profound change the electric vehicle will bring to the power grid. And now, in Los Angeles the military will show how its done with the worlds largest vehicle-to-grid project to date.

The Los Angeles Air Force Base in California (LAAFB) has acquired 42 plug-in electric vehicles (PHEVs), the most the military has ever assembled in one place. The cars, trucks, vans and a bus will be able to supply 700 kW, enough to power 140 typical American homes on a hot summer afternoon.

Unveiled on November 14, the project marks the first time the Department of Defense has swapped out a bases entire non-tactical vehicle fleet with PHEVs.

The military will use the new fleet to show how electric vehicles can serve and strengthen the California grid.

Whats profound is that the electric vehicle acts as a customer to the grid, and the grid acts as a customer to the vehicle. The vehicle buys power from the grid. What power it doesnt use, it stores, and can sell back to the grid. The vehicles also can help the grid function more smoothly by supplying ancillary services frequency and the like. The vehicles can therefore earn revenue that helps offset energy costs at the base, as well as enhance grid reliability and power security.

In addition, the vehicles act as a low-cost mobile power source that helps the base keep the power flowing if the central grid fails.

The Department of Defense and Princeton Power Systems share the view that electric vehicle fleets can have long-term cost, logistics, fuel diversity, and environmental benefits,said Darren Hammell, chief strategy officer and co-founder of Princeton Power Systems, one of several private vendors contributing to the project.

Princeton Power Systems, also known for its work on microgrids, designed and delivered 13 bi-directional electric vehicle charging stations that can both rapidly charge the passenger vehicles and provide grid services. Called CA-15 and CA-30, they are capable of 15 kW and 30 kW charging rates.

In conjunction with the fast-charging, bi-directional CA-15 charging stations, the vehicles at the Los Angeles Air Force Base also can provide valuable services to the electric grid, further increasing the economic and environmental sustainability of this unique solution, Hammell said.

The project serves as a learning experience for California  as it moves forward with vehicle-to-grid installations.

The program also will act as a pilot for the military, which plans to broaden its electric vehicle use to Fort Hood, Joint Base Andrews, Joint Base McGuire-Dix-Lakehurst and Mountain View Army Reserve Center.

Source: Microgrid Knowledge

SMART GRID Bulletin July 2017


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