Photovoltaic (PV) systems convert sunlight directly to electricity. However, unlike solar thermal systems, PV does not use the sun’s heat to make electricity. Instead, electrons freed by the interaction of sunlight with semiconductor materials in PV cells are captured in an electric current. By using PV, you are able to produce your own electricity in a clean, environmentally-friendly manner. Although initial investments may be more expensive, many states offer incentives that will help to offset the costs of installing a PV system.