Electrovaya of Toronto Canada, Hymotion also of Toronto Canada, Hybrids Plus of Boulder Colorado, United States. Ford developed a research Escape Plug-in Hybrid and delivered the first of a fleet of 20 to Southern California Edison (SCE) in December 2007 to begin road testing. This project was a collaboration aimed to explore the future of plug-in hybrids and evaluate how the vehicles might interact with the home and the utility's electrical grid. Some of the vehicles were evaluated "in typical customer settings", according to Ford. Ford also developed the first ever flexible-fuel plug-in hybrid SUV, which was delivered to the United States Department of Energy in June 2008. This plug-in version of the Escape Hybrid runs on gasoline or E85 and is also part of the demonstration fleet Ford developed in a partnership with Southern California Edison and the Electric Power Research Institute. Both the E85 version and the conventional gasoline engine version use a 10 kwh lithium-ion battery, which allows for a range at or less. When the battery's charge drops to 30%, the vehicle switches to its four-cylinder engine, assisted by the batteries, operating as a regular hybrid electric vehicle. The vehicle has a display system that shows the driver how efficient the vehicle is at any given time. If the vehicle uses its engine and is running in traditional hybrid mode, fuel economy is rated at in the city and on the highway. This fleet of 20 Ford Escape Plug-ins was field tested with utility company fleets in California, New York, Ohio, North Carolina, Alabama, Georgia, Massachusetts, Michigan, and Quebec, Canada, with sales scheduled to being in 2012. In August 2009 Ford delivered the first Escape Plug-in equipped with intelligent vehicle-to-grid (V2G) communications and control system technology to American Electric Power of Columbus, Ohio. This technology allows the vehicle operator to program when to recharge the vehicle, for how long and at what utility rate. The battery systems communicate directly with the electrical grid via smart meters provided by utility companies through wireless networking. During the two years since the demonstration program began, the fleet of Escape Plug-ins has logged more than , and Ford plans to equip all 21 plug-in hybrid Escapes with the vehicle-to-grid communications technology. The Ford demonstration vehicles and Hybrids Plus conversions are similar. The conversion involves the replacement of the original NiMH battery, located on the floor of the trunk, with a