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Author (up) González-Castillo, M.; Navarrete, P.; Tapia, T.; Lorca, A.; Olivares, D.; Negrete-Pincetic, M.
Title Cleaning scheduling in photovoltaic solar farms with deterministic and stochastic optimization Type
Year 2023 Publication Sustainable Energy Grids & Networks Abbreviated Journal Sustain. Energy, Grids Netw.
Volume 36 Issue Pages 101147
Keywords Cleaning scheduling; Operations and maintenance; Optimization; Photovoltaic solar farms; Soiling
Abstract Soiling in solar panels causes a decrease in their ability to capturing solar irradiance, thus reducing the module's power output. To reduce losses due to soiling, the panels are cleaned. This cleaning represents a relevant share of the operation and maintenance cost for solar farms, for which there are different types of technologies available with different costs and duration. In this context, this paper proposes a method that allows scheduling the dates on which cleaning generates greater utility in terms of income from energy sales and costs associated with cleaning. For this, two optimization models that deliver a schedule of dates where the best income-cost balance is obtained, are proposed and compared: a deterministic Mixed Integer Linear Problem and a stochastic Markov Decision Process. Numerical results show that both models outperform the baseline case by similar to 4.6%. A simulator was built and both models were compared to the baseline case for 10,000 rainfall and irradiance scenarios. The stochastic model outperformed both models for all scenarios, thus proving that modeling rainfalls increases profitability in the face of uncertainty.
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2352-4677 ISBN Medium
Area Expedition Conference
Notes WOS:001095657200001 Approved
Call Number UAI @ alexi.delcanto @ Serial 1904
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