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The technology of photovoltaic power generation has been increasingly regarded in many countries as an alternative to reduce the environmental impacts associated with climate changes and dependence on fossil fuels. Countries such as Germany and other European countries have been developed specific regulatory mechanisms to encourage its use either by government programs or by financial and/or tax incentives. In Brazil, despite the large existing solar potential, the encouragement to technology is still incipient. This paper aims to demonstrate the key aspects of the evolution of regulatory incentives to use photovoltaic solar energy in Brazil and present the technologies and characteristics of photovoltaic power generation. [ABSTRACT FROM AUTHOR]

Abstract: The growing demand for electrical power and the limited capital invested to provide this power is forcing countries like Brazil to search for new alternatives for electrical power generation. The purpose of this paper is to present a technical and economic study on a 15kW solar plant installed in an isolated community, highlighting the importance of the need for financial subsidy from the government. It evaluates the importance of parameters such as the annual interest rate, specific investment, the marginal cost of expanding the electrical power supply and the government subsidy on amortization time of capital invested. [Copyright &y& Elsevier]