How much do PV systems cost?
PV systems range in cost depending on a variety of factors such as the size, manufacturer, retailer, and installer; whether you’re building a new house; and whether you’re installing solar roof shingles or panels on top of a preexisting roof. A small, single-panel system that produces up to 75 watts of energy (approximately enough electricity to light a typical room for five hours a day) costs around $900. A two-kilowatt system that provides nearly all the electricity for a medium-sized, energy-efficient house costs between $16,000 and $20,000. A 5 kW, high-end, PV system that meets all the energy needs of a typical home costs around $40,000. This cost will vary somewhat based on system size, site characteristics, permit fees, and any optional equipment additions. System costs continue to decrease as PV technology advances and becomes more readily available.