How can solar energy be harnessed ? Mention any two limitations in using solar energy. How are these limitations overcome ?

Explanation

Solar cooker : Solar cooker is a device which is composed of a rectangular box with a mirror at the top. The box has a glass cover. Mirror is kept in erect position so that reflected sunlight can go inside the box. Utensils are kept in the box. Glass cover on the top prevents heat from escaping the box.
Solar cell : A solar cell is also called photo-voltaice cell. It converts solar energy into electrical energy. Electrical energy, thus produced needs to be stored in inverters so that it can be used even during night.
Solar furnace : Solar furnace is made of concave mirror. The heating device is kept at the focus of this furnace. Heat from sun is concentrated at the focus which helps in generating lot of heat. Solar furnace can be used to heat water and steam generated by this process can be used to generate electricity.
Limitations of solar energy:
(i) Access to direct sunlight is needed for solar panels to perform at their best. Solar energy is not available in night or when the sun is hidden under clouds.
(ii) The domestic use of solar cells for production of electricity is not possible due to high cost.
Ways to overcome the limitations of solar energy :
(iii) First limitation can be overcome by converting solar energy into electrical energy and storing them for future use.
(iv) Second limitations can be overcome by taking certain steps by government to reduce price of solar cells.