50kW photovoltaic plant to cover own needs and sell excess energy. The headquarters was built on the roof areas of the Tomser factory in Plovdiv. Documentation for Energy Distribution South and the Municipality of Plovdiv, as well as the project in all the necessary parts, were maintained and prepared by VVT Engineering. The structure was designed and built by VVT Engineering EOOD. It consists of Schletter’s no-drill installation system, using concrete prestressing blocks for construction. The plant consists of 92 Bauer Solar photovoltaic modules with a power of 540W with a 20-year product warranty and 1 Kostal inverter with a 5-year warranty and 50kW power. The entire construction of the plant took 10 working days. After the construction of the photovoltaic plant, all necessary declarations and quality certificates were issued for the purpose of commissioning.