INDIANAPOLIS (AP) _ The nation's largest solar farm built on a federal Superfund site is now generating power above a stretch of Indianapolis tainted by a long-shuttered plant's wood-treating operations.

The 43-acre Maywood Solar Farm went online last month and is feeding 8 megawatts of electricity into Indianapolis Power & Light's grid.

Property owner Vertellus Specialties Inc. worked with the U.S. Environmental Protection Agency, solar panel maker Hanwha Q CELLS, IPL and other partners to develop the solar farm.

EPA spokesman Francisco Arcaute says it's the country's largest solar farm on a Superfund site. A plant that closed in 1972 had treated railroad ties with the toxic chemical creosote for decades.

Vertellus President Rich Preziotti says the project has put idle land into productive use generating renewable energy.