The Subaru R1e was a battery-electric microcar produced by Fuji Heavy Industries (FHI), first shown at the 2003 Tokyo Motor Show. The concept was jointly developed to prototype form with Tokyo Electric Power (TEPCO), the giant Japanese utility company. At least 40 prototypes were built by FHI and tested by TEPCO and the New York Power Authority. The vehicle had a range of 80 kilometres (50 mi) and a top speed of 100 km/h (62 mph).

Tokyo Electric Power Company Holdings, Incorporated is a Japanese electric utility holding company servicing Japan's Kantō region, Yamanashi Prefecture, and the eastern portion of Shizuoka Prefecture. This area includes Tokyo. Its headquarters are located in Uchisaiwaicho, Chiyoda, Tokyo, and international branch offices exist in Washington, D.C., and London. It is a founding member of strategic consortiums related to energy innovation and research; such as JINED, INCJ and MAI.