The main purpose of the solar photovoltaic power plant (SPVPP), with installed power of 500 kW on the roof of the factory GRUNER Serbian Ltd in Vlasotince, is to electrical supply of consumers in the factory. Considering the geometric dimensions of the roof and the daily and monthly profiles of electricity consumption in the factory, at the beginning of 2021, SPVPP was designed. In this way It is achieves parallel operation with the electricity distribution network, with the possibility of delivering surplus electrical energy. SPVPP was performed by the company CONSEKO Ltd., Belgrade in the period 15.0715.10.2021 and was put into trial operation at the end of September 2021, and the use permit of the plant for operation was issued on 30.12.2021. Since that date, SPVPP has been officially in exploitation operation. The GRUNER factory is on March 30, 2022 concluded with JP EPS, Branch "EPS Snabdevanje" concluded a contract for full supply of electricity for the period 01.04.2022 to 31.12.2023. The paper presents some key experiences from the construction and operation of PVPP, which could be interesting for both designers and implementers. The realization of PVPP has made a certain contribution to the promotion of renewable energy sources and the use of "green" energy in the territory of the Republic of Serbia.