Agricultural Solar-Renewal Energy and Agriculture: A Natural Fit Solar energy can be used in agriculture applications in a number of ways, saving money, increasing self-reliance, and reducing pollution. Solar energy can put an end to a farm’s electricity and heating bills. Solar systems can be used to dry crops and warm homes, livestock buildings, and greenhouses. Photovoltaics (solar electric panels) can power farm operations and remote water pumps, lights, and electric fences.