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Analysis of potential energy, economic and environmental savings in residential buildings: Solar collectors combined with microturbines

I. Suárez, M.M. Prieto and Javier Fernandez-Macho

Applied Energy, 2013, vol. 104, issue C, 128-136

Abstract: This paper presents an analysis of a combined solar-cogeneration installation for providing energy services in a set of four residential buildings. Different configurations as regards the number of collectors and their orientation, the number of buildings grouped together, the type of microturbines used in the cogeneration system and their daily and annual operating period are studied from the legal, economic and environmental perspectives. The installation that fulfils the minimum requirements of the solar system coverage and the cogeneration system efficiency currently in force, and simultaneously leads to the highest energy, economic and environmental savings is the one that integrates both technologies and centralises the installation for the four buildings together. A payback period lower than 8years is obtained that makes this investment recommendable, but it is also concluded that maintaining the existing subsidies for these technologies and lowering the costs of the equipment, are essential factors to ensure the feasibility of this type of installations.

Keywords: Combined heat and power; Natural gas microturbine; Thermal solar collector; Residential building; Primary energy saving; CO2 emissions reduction (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1016/j.apenergy.2012.10.070

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