LINCOLN, Neb. (AP) — What’s being called Nebraska’s first commercial solar energy project is expected to begin tracking the sun and delivering some of its power by June 20.

The Enerparc project will be able to output about 3.6 megawatts, enough to power around 900 Lincoln homes. It sits on a 46-acre parcel on the west side of the capital city.

Lincoln Electric System has a 20-year contract to buy the power, with a five-year extension option.

The utility has declined to say how much it will pay for the electricity or how the rate will compare to the cost of fossil fuel-produced electricity or other renewable sources such as wind. Enerparc has said the project is costing $8.9 million.