Passive Solar Energy is the energy obtained by the use of only the heat energy from the sun. This direct heat energy can be used to dry out clay bricks, groceries, clothes, and for other day to day activities. Passive solar energy can be utilized well in homes which are constructed in an environment friendly manner. Use of heat absorbing materials in the home keeps the rooms warm and cozy. Ventilating the house properly and installing glass instead of wooden window shields can bring in more sunlight and thus save on electricity bills. Passive Solar Energy also has no carbon footprints.

So you can make use of the solar energy to save on electricity bills as well as live an environment friendly life. To produce active solar energy you will have to install solar panels