Apprentice's guide to photovoltaics
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
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
HOUSES
PHOTOVOLTAIC POWER SUPPLIES
INSTALLATION
OPERATION
COST
EFFICIENCY
INTERCONNECTED POWER SYSTEMS
INVERTERS
LIGHTNING ARRESTERS
PERFORMANCE
SAFETY
BUILDINGS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
POWER SUPPLIES
POWER SYSTEMS
RESIDENTIAL BUILDINGS
SOLAR EQUIPMENT
140600* - Solar Energy- Photovoltaic Power Systems
320101 - Energy Conservation
Consumption
& Utilization- Residential Buildings- (-1987)