Non-Conventional Sources of Energy — Question 1

I would prefer solar energy for running street­ lights, water pumps for irrigation and heating my house because of the following reasons:

1. Solar energy is a renewable source of energy which can be harnessed in most of the areas of the world.
2. It can be used for diverse purposes - to produce electricity in areas without access to the energy grid, to distill water in regions with limited clean water supplies and to power satellites in space.
3. Solar energy systems do not require a lot of maintenance. Most reliable solar panel manufacturers give 20-25 years warranty. Also, as there are no moving parts, there is no wear and tear. So, after covering the initial cost of the solar energy system, it requires little spending on maintenance and repair work.
4. It saves fossil fuels like coal and petroleum, used to produce electricity and also reduces electricity bills.