Design ۳MW solar plant

This paper presents the complete design and performance analysis of a ۳ MW grid-connected solar photovoltaic (PV) power plant. The design methodology covers solar resource assessment, module and inverter selection, string sizing, array layout, and loss quantification using standard engineering equations consistent with the PVsyst simulation framework. A site with an annual global horizontal irradiation (GHI) of ۲۱۵۰ kWh/m² and an average ambient temperature of ۲۵.۷ °C is considered as the reference case. The plant is configured with ۵۵۰ Wp monocrystalline modules organized in central and string inverters, achieving an annual energy production of approximately ۴۹۹۰ MWh, a performance ratio (PR) of ۸۳.۵%, and a capacity utilization factor (CUF) of about ۱۶%. The analysis quantifies the main loss mechanisms incidence angle, soiling, IAM, thermal, mismatch, wiring, and inverter conversion losses using the PR framework defined in IEC EN ۶۱۷۲۴. The calculated levelized cost of energy (LCOE) of ۰.۱۱ US$/kWh demonstrates a clear economic advantage over the conventional grid tariff of ۰.۱۸ US$/kWh, with a simple payback period of approximately six years and an avoided CO۲ emission of roughly ۳۴۰۰ tons per year. The results provide a validated reference for the design, analysis, operation, and maintenance of utility-scale grid-connected PV systems at comparable locations.

کلیدواژه ها:

Solar photovoltaic ، ۳ MW power plant ، Grid-connected system ، Performance ratio ، Loss analysis ، LCOE