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Title: Apprentice's guide to photovoltaics

Journal Article · · Sol. Age; (United States)
OSTI ID:5536272

A generic residential photovoltaic (PV) power system is described in which a 50 m/sup 2/ (555 ft/sup 2/) roof-mounted PV array with 10% efficiency produces 5 kW peak dc power. A power inverter (85 to 90% efficiency) is an intergral part of the system, as is two-way connection with the grid of the local public utility. The system is designed to meet 50 to 100% of the electrical needs depending on location (insolation) and water and space heating demands. Specific requirements and considerations are discussed including physical access of the PV array for removal and maintenance, weathersealing, cooling of the PV array, aesthetics, and cost. The power inverter and the electrical design of the complete system are discussed as well as the methods used for mounting the PV array (direct, integral, stand-off, and rock mounting). Safety features (e.g., lightning protection) and modes of operation are described. Evolution of safe, reliable and economical residential PV systems is predicted. (MJJ)

Research Organization:
Massachusetts Inst. of Tech., Lexington
OSTI ID:
5536272
Journal Information:
Sol. Age; (United States), Vol. 6:7
Country of Publication:
United States
Language:
English