Community Solar PV System for Sustainable Development in Thailand
DOI:
https://doi.org/10.14738/aivp.1305.19464Keywords:
Solar PV, Community, Sustainable development, Thailand, Cash flow analysis, GHG reduction, SAM: System Advisory Model, USD: United States Dollar, UScent: United States Cent, NPV: Net Present Value, IRR: Internal Rate of Return, PPA: Power Purchase Agreement, EPPO: Energy Policy and Planning Office, ERC: Energy Regulatory Commission, DEDE: Department of Alternative Energy Development and Efficiency, SPP: Small Power Producer, VSPP: Very Small Power Producer, EGAT: Electricity Generating Authority of Thailand, PEA: Provincial Electricity Authority, MEA: Metropolitan Electricity Authority, FiT: Feed-in TariffAbstract
Cash flow analysis and System Advisory Model (SAM) are utilized to verify the economic viability of the investment in ground-mounted solar PV systems with various subsidy amounts. It has been found that a typical solar PV system with a capacity of 90 kWdc, which is adequate to supply daytime electricity for a community of 171 households, requires an investment of USD 135,555. With a 7% annual interest rate and 9.06% discount rate, a subsidy of 32.8% of the total investment is needed for break-even. In case the solar PV system is totally invested by the authorities, the revenue from the community's residential users and the savings from payments to the electricity generators (SPP or VSPP) will be realized and result in an NPV of USD 600,480 at a discount rate of 9.06% and a 52% IRR. The payback period for the case where the authorities invest in the system is around three (3) years. By pro-rata, a total investment of USD 6,838.9 million is required to install solar PV of the total capacity of 4,540.6 MWdc to provide electricity for all residential customers of 8,627,138 households, which could reduce GHG of 4,450,306.3 tCO2e.
References
Chaianong, A., Tongsopit, S., Bangviwat, A., & Menke, C. (2019). Bill saving analysis of rooftop PV customers and Policy implications for Thailand. 131.
EPPO-PDP. (2025). Power Development Plan. Retrieved April 22, 2025, from Energy Policy and Planning, Ministry of Energy, Thailand: https://www.eppo.go.th/index.php/th/electricity/pdp
ERC. (2022, September 30). Power Purchase. Retrieved April 20, 2025, from Energy Regulatory Commission: https://www.erc.or.th/th/power-purchasing3
ERC. (2025). Electricity. Retrieved from Energy Regulatory Commission: https://www.erc.or.th/th/powerstatistics-electricity
ERC-Ft. (n.d.). Ft. Retrieved April 24, 2025, from Energy Regulatory Commission: https://www.erc.or.th/th/automatic/1355
ERC-Licenses. (2008). Types and Duration of Energy Business Licenses B.E.2551. Retrieved May 1, 2025, from Energy Regulatory Commission: www.erc.or.th Mungkung, N., Gomurut, N., Tanitteerapan, T., Arunrungrusmi, S., Chaokumnerd, W., & Yuji, T. (2009). Analysis of Technical Loss in Distribution Line System. The 8th WSEAS International Conference on Telecommunications and Informatics.
PEA. (2021). Shifting to digital utility for sustainable society. Thailand: Provincial Electricity Authority.
PEA. (2023). Retrieved May 2, 2025, from Provincial Electricity Authority: https://sustainability.pea.co.th/en/PEA-Charges. (n.d.). Energy & Service Chrages. Retrieved April 24, 2025, from Provincial Electricity Authority: https://www.pea.co.th/sites/default/files/document
Sawasawanee, Y. (2015). Department of Alternative Energy Development and Energy Conservation. Retrieved from DEDE.
TGO-Emission_Factor. (n.d.). Emission Factors. Thailand Greenhouse Gas.
UN-SDG7. (n.d.). High-level dialogue on ENERGY. Retrieved April 21, 2025, from United Nations, Sustainable Development: https://www.un.org/sites/un2.un.org/files/2021/11/hlde_outcome_-_sdg7_global_roadmap.pdf
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Copyright (c) 2025 Athikom Bangviwat, Apinya Puapattanakul
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