Sensitivity analysis of the carbon payback time for a Brazilian photovoltaic power plant |
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| Affiliation: | 1. Department of Physics, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez S/N, 38206 S/C de Tenerife, Spain;2. Department of Electric Systems and Automatics Engineering, Universidad de León, School of Industrial, Informatics and Aeroespace Engineering, Campus de Vegazana s/n, 24071 León, Spain;3. Monitoring Agricultural Resources Unit—H04 Joint Research Centre/European Commission, Institute for Environment and Sustainability, Ispra, Italy;4. Department of Electrical Engineering, Electronics, Control, Telematics and Applied Chemestry in Engineering, UNED, Juan del Rosal, 12 – Ciudad Universitaria, 28040 Madrid, Spain;1. Department of Production Engineering, UNESP - Universidade Estadual Paulista, Guaratingueta, SP, Av. Dr. Ariberto Pereira da Cunha, 333, Bloco II, CEP, 12416-510, Brazil;2. Department of Energy, UNESP - Universidade Estadual Paulista, Guaratingueta, SP, Av. Dr. Ariberto Pereira da Cunha, 333, Bloco IV, CEP, 12416-510, Brazil;1. Algoritmi Centre, School of Engineering, University of Minho, Campus Azurém, 4800-058, Guimarães, Portugal;2. Energy Planning Program, Graduate School of Engineering, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Bloco C, Sala 211 Cidade Universitária, Ilha do Fundão, 21941-972, Rio de Janeiro, RJ, Brazil |
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| Abstract: | Decreasing upfront costs, governmental policies, and promises to reduce greenhouse gas emissions have provoked a sharp increase in the installed capacity of photovoltaic (PV) plants worldwide. In Brazil, PV plant installation has been growing since 2014, stimulated by the Ministry of Energy and Mines auctions dedicated to this technology. Net emissions vary depending on the emissions from the grid where PV plants are installed, and little is known about their actual payback times in tropical areas. This study calculates the carbon payback time of a 3.0 MWp PV power plant with a sensitivity analysis. We conclude that the PV plants installed in northeast Brazil are beneficial to climate change mitigation whether the PV module is mono-Si or poly-Si, manufactured abroad or not and, considering uncertainties about emissions from alternative technologies, especially hydropower. |
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| Keywords: | Photovoltaic Carbon payback time Sensitivity analysis |
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