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Siting Study of Solar Thermoelectric Plants in the State of minas gerais

Journal of Geographic Information System 2014年第5期6卷 423-439页

作者： Chigueru Tiba Ruibran Januario dos Reis Reis Julio Cesar Ezequiel da Costa Veronica Wilma Bezerra Azevedo Joao Francisco Abreu Melina Amoni Silveira Alves Daniel Pereira Guimaraes Marco Aurelio Dumont Porto Nuclear Energy Department Federal University of PernambucoRecifeBrazil Programa de Pos-Graduacao em Geografia PUCBelo HorizonteBrazil Companhia Energetica de minas gerais Belo HorizonteBrazil Embrapa Milho e Sorgo Sete LagoasBrazil

The generation of heliothermal electricity has received increasing attention throughout the world in countries such as Spain, the USA, Germany and many others. In Brazil, this type of energy generation in the form of large projects (above 80 MW) remains unexplored. However, it is known that in the country, there are extensive areas of normal direct irradiation with high intensity and a low seasonality factor, especially in the semiarid regions in Brazil, mainly the North and Northeast of minas gerais. Moreover, these minas gerais regions have other significant characteristics for the installation of these plants: proximity to transmission lines, flatness, the fact that the respective vegetation is not endangered, a suitable land use profile (availability of land not used in agriculture), low wind speed, low population density, and, most recently, an increase in the demand for local electric energy due to the economic growth above the Brazilian average rate. Furthermore, the introduction of solar plants in that region, due to its distributed nature, will bring development and growth to the region (normally poor) by generating employment and income. This article presents a study of the optimal location of thermoelectric plants in the semiarid regions of minas gerais, conducted with Geographical Information System (GIS) technology. GIS consists of a set of specialised resources that allow the manipulation of spatial data, bringing efficiency and agility in the identification of suitable places for the installation of solar plants, while simultaneously enabling the consideration of future scenarios for energy planning, with its respective impact, costs and benefits. The study has identified very promising solar irradiation levels for the electric generation by solar energy, whether thermoelectric or photovoltaic, reaching an annual solar irradiation of 2700 kWh/m2 in the summer and in the range of 2200 - 2400 kWh/m2 on an annual basis. This area includes a vast region i

关键词： Solar Energy Thermoelectric Solar Plant Geographical Information System promising regions in the minas gerais

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