The constant pursuit for emerging renewable power sources has led to the development of floating solar photovoltaics (FSPV). FSPVs operate on water bodies and hence its performance is different from the land-based counterparts. Degradation and aging of PV modules severely affects the reliability and the life of PV power plants. Owners and other beneficiaries are concerned about the actual degradation of PV modules as it affects the financial outcome of the power plant. The performance analysis and the degradation of FSPV power plants over its lifetime is not well reported. This paper presents techno-economic feasibility and reliability study of FSPV power plant for long term power generation. To determine the performance of the FSPV module, an experiment was conducted and data was collected for 17 months. Results showed that the average performance ratio and the degradation rate was 71.58% and 1.18% respectively for the FSPV module and 64.05% and 1.07% respectively for land-based PV system. Feasibility study and performance analysis of a 5 MW FSPV power plant showed that with degradation of 1.18%/year, the power plant will generate 8604.5 MWh of electricity annually. Degradation also effects the financial parameters, the levelized cost of electricity (LCOE) is calculated as 0.041 $/kWh which is 2.5% higher than the LCOE calculated with standard degradation. The FSPV plant will also save 105000 kL of water per year by reducing evaporation and the total lifetime CO₂ savings will be 183,493.24 tones.

对新兴可再生能源的不断追求导致了浮动太阳能光伏（FSPV）的发展。FSPV在水体上运行，因此其性能与陆上对应物不同。光伏组件的降解和老化严重影响了光伏电站的可靠性和寿命。业主和其他受益人担心光伏组件的实际退化，因为它会影响电厂的财务结果。尚未完全报道FSPV电厂在其使用寿命期间的性能分析和性能下降。本文介绍了FSPV电厂长期发电的技术经济可行性和可靠性研究。为了确定FSPV模块的性能，进行了一次实验并收集了17个月的数据。结果表明，FSPV组件的平均性能比和降解率分别为71.58％和1.18％，而陆基光伏系统的平均性能比和降解率分别为64.05％和1.07％。一家5 MW FSPV电厂的可行性研究和性能分析表明，以每年1.18％的退化速度，该电厂每年将产生8604.5 MWh的电力。降级还会影响财务参数，计算得出的平均电力成本（LCOE）为0.041 $ / kWh，这比标准降级计算出的LCOE高2.5％。FSPV工厂还将通过减少蒸发量和整个生命周期的二氧化碳，每年节省105000 kL的水 一家5 MW FSPV电厂的可行性研究和性能分析表明，以每年1.18％的退化速度，该电厂每年将产生8604.5 MWh的电力。降级还会影响财务参数，计算得出的平均电力成本（LCOE）为0.041 $ / kWh，这比标准降级计算出的LCOE高2.5％。FSPV工厂还将通过减少蒸发量和整个生命周期的二氧化碳，每年节省105000 kL的水 一家5 MW FSPV电厂的可行性研究和性能分析表明，以每年1.18％的退化速度，该电厂每年将产生8604.5 MWh的电力。降级还会影响财务参数，计算得出的平均电力成本（LCOE）为0.041 $ / kWh，这比标准降级计算出的LCOE高2.5％。FSPV工厂还将通过减少蒸发量和整个生命周期的二氧化碳，每年节省105000 kL的水₂节省为183,493.24音。