Practical and Estimated Efficiencies of Solar Photovoltaic Power Plants

Practical and estimated efficiencies of three (A, B and C) solar photovoltaic power plants (SPVPs) has been determined in this paper. Each of this SPVPs mainly has steel frame constructions for panel placing, polycrystalline silicon type solar PV (photovoltaic) panels, combinations of MPPT (maximum power point tracker) + inverter boxes, collecting busbar, transformer boxes, distributor busbar, kWh meter (output counter), underground cable line and mechanical components for external grid connection, control building, lighting and camera monitoring system. Selected SPVPs were installed in location of Adıyaman City, Türkiye (Latitude: 37.45°, Longitude: 38.17° and Altitude: 672 m), in 2017. Installed power capacity per SPVP is 1.025 MW. The results of the work showed us that the first year average electric energy production is 1691642 kWh and average practical and estimated efficiencies are 15.00% and 14.783%, respectively.