In December IndyGo received the final shipment of its 21 fully electric buses and flipped the switch on a 1 Megawatt solar array.

That farm covers 10 acres with more than 4,200 solar photovoltaic panels that turn sunlight into electricity and feed that power into the local electrical grid.

Indiana regulators have approved a series of agreements that will allow Duke Energy to purchase 20 megawatts of power from four solar farms in the works around the state.