Energy SystemsA typical PV array consists of one or more PV modules electrically connected with each other. When PV modules exposed to sunlight, convert approximately 14% of incident solar energy into electricity. Photovoltaic systems offer high and guaranteed yield, need little maintenance, are reliable with long life, and have expansion capability. Divided into stand alone or grid-connected can be installed on roofs of existing buildings, in any open-enclosure space, in fields, squares, streets, etc. For every installed kW it takes about 7-10 m2. The main characteristics of PV systems, which differentiate it from other forms of renewable energy are :
PV systems contribute significantly to «Distributed Power Generation», which constitutes a new development model of modern energy production systems, transportation and distribution of electricity. The diversification of energy production, provided by PV systems, combined with a large proportion of dependence on oil and prevent further pollution of the environment can create conditions for economic development to a new energy scene that is currently under shape in developed countries.
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