• Introduction
• Conservation options
• Passive solar heating
• Active solar systems
• Photovoltaics (solar electricity)
• Geothermal energy
• Remodeling brochure
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Photovoltaics (Solar Electricity)

Sunlight converted directly to electricity through solar cells is called photovoltaic (PV) energy. Solar cells come in many sizes and will produce electricity as long as sunlight shines on them. Solar cells used for electrical generation are a more sophisticated version of the solar cells used in calculators and other small devices. PV cells generate direct current (DC). DC appliances and lights can be used in recreational vehicles. To use standard household appliances the power must be converted to alternating current (AC), so a solar electric system must be designed to convert the power to AC.
Although prices have dropped in recent years, a PV system can still be expensive. They are especially cost effective in remote areas away from power grids where you might need to generate your own electricity, or in recreational vehicles and boats. An electrical load analysis must be done, and there are important safety considerations. Consult your electric cooperative.