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Sustainability, Volume 12, Issue 3 (February-1 2020) – 531 articles
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Cover Story (view full-size image) Small off-grid photovoltaic pumping irrigation systems with storage tanks are a sustainable, cost [...] Read more. Small off-grid photovoltaic pumping irrigation systems with storage tanks are a sustainable, cost effective, and efficient way of taking advantage of solar energy to irrigate crops, being increasingly used today. Many alternative designs are available to choose, so finding the optimal choice is difficult. In this paper, a new heuristic model that uses search space reduction is developed. It combines, at different stages, an engineering-based bounding strategy with a genetic algorithm. The proposed methodology was applied to minimize the cost of a benchmark case study consisting of a real farm in the province of Almería, Spain. This model was able to provide a faster and a more accurate convergence to the minimum cost of the system. However, both minimizing cost and maximizing the efficiency of energy use must be considered. View this paper