There can be many inventions and improvement in technology but the invention of solar energy is the best of them. Solar energy is defined as any form of energy radiated by sun, which includes light, X-ray and radio waves. This solar energy is not only used by humans it is also used by plants in a reaction called photosynthesis. The energy radiated by sun is the only food for the plants. Solar energy is been a helping hand to give raise to many technologies where the solar energy can also be used a electricity. Not only in the improvement in the technology, solar power is used in many houses nowadays. By using solar power we can reduce the consumption of electricity and the instruments used for absorbing solar energy is not very complicated to use it is very simple. Even wrist watches and calculators can run using solar power, this can be made possible by adding a small solar absorbing instrument. Solar power is more commonly used in water heaters and many users says that using solar power is more convenient and effective than spending electricity for households. In many places even government is insisting people to use solar power rather using normal electricity.