BLAINE, Maine (AP) - The U.S. Department of Agriculture is sending more than $400,000 to Maine to help six small businesses invest in renewable energy systems.

U.S. Sens. Susan Collins and Angus King say the money will help the businesses purchase and install renewable energy systems or upgrade to more efficient equipment. The money comes from the USDA's Rural Energy for America Program.

The six businesses are located all over the state, from Fort Kent on the northern border with Canada to the city of Biddeford in southern Maine.

The largest grant is going to Double G Farms in Blaine. The grant of more than $150,000 will help purchase and install a solar system the help the farm. Businesses in Eliot, Buxton and Dresden are also receiving money for projects.