The sun is a good source to get power, and if you are living in an area where the sun shines for maximum hours. You can buy solar cells and connect them to the batteries to store the solar energy. The energy will be stored in an electric field and the energy can be supplied to whole house. You can buy a good solar energy system to store energy from sunlight. There are two ways to store the energy from the sunlight, one is thermal energy and the second is storing solar energy.