The Indiana Municipal Power Agency (IMPA), a wholesale power supplier, was awarded a recent U.S. Department of Energy grant to fund the retrofitting of outdoor street lights in member communities with light emitting plasma and LED street lighting fixtures. Through a competitive process, the communities collectively selected the GE’s energy-efficient Evolve™ LED Roadway Cobrahead fixtures to replace mercury vapor, metal halide and high-pressure sodium lamps, some of which had been in use for more than half a century.