Unlike coal, oil and natural gas which will eventually run out, solar power is renewable and will last as long as the existence of the sun.
Solar energy does not harm the environment, unlike fossil fuels, which pollute the air and are implicated in causing climate change.
The expensive prospecting, mining and processing required for non-renewable sources disappears with solar powered energy. All you need to produce solar power are solar cells, which require only modest production facilities.
Instead of concentrating power production and distribution in to central plants and utilities, power can be produced by individual homes, businesses, cars and even individual machines, such as solar-powered lawn mowers.
Solar power removes U.S. dependence on foreign sources of energy which ensures national security and insulates the economy from foreign price manipulation.