The solar energy farm will run along Interstate 65 and will cover about seven acres.
Officials expect work to start this spring on construction of a 17-acre solar farm in Greenfield.
Duke Energy Indiana wants to expand solar power for customers.
Monroe County celebrated the completion of its project to install solar panels on the Showers Building where the county's government offices are housed.
A USDA study shows there is ample land at Indiana airports for solar farms, wind turbines or biofuel crops.