Sunlight is abundant in just about every state, country and region around the world. As ultra-violet light strikes photovoltaic (PV) panels it can be converted into free solar electricity. Over the life of a solar panel system (25-35 years), you can tap into the world's oldest renewable resource. Your investment is merely for the solar panels.
At current solar panel prices, taking into consideration incentives and tax credits, the retail cost of an average home solar power system in the U.S. ranges from $20,000-40,000. After installation, many homeowners see their electricity bills drop by 2/3 or more - some down to zero. Plus, with net metering, homeowners with grid-tied solar power systems can watch their meters turn backward as they get credit for additional solar power generated but not used, which is fed back into the grid.
The return on investment for residential solar panels averages 7-10 years, which means at least 15-25 years during which you are not paying anything for solar electricity!
Lest you are concerned about installing solar panels because you do not live in a sunny region, consider that the leading solar power country in the world is Germany, and one of the top solar power producing states in the U.S. is New Jersey! Solar energy can be generated wherever there is sunlight - whether filtered by clouds, or not.