Solar energy is the cleanest form of energy available for us today. It is also the most viable source of energy because it will be obtainable in the future too when the fossil fuel runs out.
Also, solar power is a native source of energy, and it is available practically everywhere on the planet. Therefore, it contributes to the reduction of energy imports and to the creation of national wealth as well as local employment.
And the bills are too tiny to believe, so, there you save a bit more, again!