It’s photovoltaic power — solar electric energy — and it harnesses the power of sunlight to supply your home with electricity. Simply put, photovoltaic (PV) systems produce electricity from sunlight through cells that are installed on your roof or elsewhere on your property. PV power doesn’t produce any noise or pollution, it’s reliable and dependable, and it’s renewable so it makes good sense for the environment. For example, a 2.5 kW system will provide about 2,900 kilowatt hours per year and can typically provide about 25 to 35% of an average home’s electricity needs. The more energy efficient your house is, the greater the impact of the PV system.
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