PRINCETON, NJ: Princeton Power Systems, technology solutions for energy management, recently participated in the unveiling of a unique Plug-In Electric Fleet. At the event they delivered their own designed fleet of bi-directional electric vehicle charging stations that can both rapidly charge the passenger vehicles and provide grid-support services back to the electric utility and grid operator. The new charging station products, named the CA-15 and CA-30, capable of 15 kW and 30 kW charging rates respectively was unveiled by United States Air Force.
Princeton Power Systems delivered and commissioned thirteen CHAdeMO-compliant fast-charging stations based on the UL-Certified bi-directional multi-port converter; the GTIB-30. The GTIB-30 is highly-configurable, can condition power from alternative energy sources, as well as Energy Storage, various AC loads, and AC Microgrids. It is compatible with advanced communication protocols including MODBUS RTU, offers a wide input voltage range and EV Fast-Charging options.
Princeton Power together with electric vehicle OEMs and third-party fleet-management software aggregators developed the Los Angeles Air Force Base (LAAFB) solution, enabling the vehicles to compete in the electrical utility ancillary service markets and provide energy services to the Department of Defense (DOD) facilities. The ancillary service revenues will partially offset the EV fleet lease expense, while also providing the potential to improve energy security on base.
"The shared investment and commitment by our partners illustrates that innovations such as this have value not only to the Air Force and Department of Defense, but to the nation as a whole," states Miranda Ballentine, Assistant Secretary of the Air Force for Installations, Environment and Energy.
During normal usage, the charging stations will rapidly charge the electric vehicles directly from the electric grid, enabling LAAFB personnel to utilize the electric vehicles as transportation within the base and the region. When called upon to support a vehicle-to-grid request, the electric vehicle's on-board battery can be discharged rapidly directly into the grid. The rate of charging and discharging, and communication with the car and the grid, are all managed by the CA-15 charging station in a safe and reliable manner, meeting all local and national grid-interconnect codes. In addition to supporting the efficiency and reliability of the distribution system, the charging station and vehicle can provide demand response, VAR support, frequency regulation, and other operating modes.
"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, Princeton Power Systems. "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."