Solar electrical systems can be connected throughout a utility grid to provide an additional power source. This is particularly useful in many parts of the world where electricity is expensive and unreliable such as developing countries. In many cases, the photovoltaic systems are the primary source with the utility grid providing backup power. Individuals and organizations are also putting in solar electric systems for their green "benefits", to know that they are getting some or all of their power from clean energy sources and that they are not contributing to global warming and pollution as in the case of fossil fuel power plants.

Grid connected solar power is an expensive option compared to conventional electricity in the US. It makes the most sense in areas where power in not reliable and can serve as a backup or in countries with expensive electricity.

Grid Tied Solar Electric System
Fort Collins Colorado