Solar Heating for Low Income Family Houses in Brazil

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The main objective of this work is to evaluate the potential use of solar heating for domestic use in Brazil, its current situation and possible measures to develop its use, especially for low-income family houses, a still little explored share of the market. The study case aims to evaluate solar heating systems in social interest housing project “Sapucaias”, five years after its implementation. The data analysis shows clearly the success of such technology in providing energy savings allied to social benefits, although some aspects may be improved in future projects, specially to avoid to users from selling the systems, sometimes soon after they receive them, before the benefits are perceived. The use of domestic water solar heating systems is also positive for the overall country electricity grid, in terms of savings of total electricity demand and shift of power during peak hours. Also important are the social benefits born from the use of this technology, namely the economical savings for poor families allied to a higher comfort level achieved: the resulting savings from lower electricity bills are converted in better food and also the purchasing of new domestic app...