Feasibility of Floating Photovoltaic Systems in Nong Han Lake, Sakon Nakhon Province, Thailand
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Abstract
This study aims to assess the potential and feasibility of developing and installing a floating solar photovoltaic (FPV) power generation system on Nong Han Lake in Sakon Nakhon Province, Thailand. This novel assessment of a large-scale, natural water body fills a research gap, as most previous FPV initiatives in Thailand have focused on artificial reservoirs. The feasibility analysis focuses on both technical and economic aspects. The methodological approach integrates field data, a comprehensive site suitability analysis, and simulations using PVsyst software. The results indicate that an FVP system in the 80-hectare pilot area can support a capacity of 96.34 MWp, generating approximately 132.25 GWh/year, with a performance ratio of 80.64% and a levelized cost of energy of 1.40 THB/kWh, which is significantly lower than the current feed-in tariff. The project demonstrates strong economic viability, featuring a 14-year payback period and an internal rate of return of 7.5–8.5%. This study highlights FPV as a promising renewable energy solution and offers a strategic framework for FPV deployment in unique natural aquatic environments across the region.
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