During the preparation, with the involvement of an electrical engineer, we examined and designated the areas that are suitable for the reception and efficient operation of solar panels. During the visits we reviewed the electrical supply of the realisation site, its capabilities and entry points through the glasses of our investment idea. As a result of the work, technical specifications, layout frame drawings, single-line block schema drawings and a detailed list of materials and tools were drawn up, which documents were attached to the application file. The annexes also include the technical sheets of solar panels and inverters that are planned to be installed, which will be replaced by the same means or, as a fast-changing industry, with higher technical content during the investment. Norbert Somogyi’s electrical engineer’s preparatory work and the effectiveness of the future construction were assisted and assisted by Tamás Király, as well as as a highly experienced electrical engineer-manager, and Zoltán Melegh, a building engineer and energetic expert, assisted and assisted during the investment. The present energy development therefore involves the installation, installation and installation of a small photovoltaic power plant of 390 kWp. In the decision to invest, in addition to the cost-effective, self-generating energy production, the reduction of the ecological footprint of Pécsi Szörfőzde, and the replacement of fossil fuels for green, renewable energy sources, played an important role. Operational Description — Installing solar panels will affect the vast majority of the usable roof surfaces of the factory unit. During favourable periods of sunshine, it will be able to cover up to 60-70 % of the current energy demand and will generate ~20 % of annual electricity consumption. Three points will be connected to the internal electricity network of Pécs brewery through the inverters. Each entry point is insured with its own circuit breaker. —Inverters are delivered by a performance control system that limits, if necessary, the amount of energy produced by solar panels in order to avoid regenerating to the grid. The control signal comes from the backwatt protection to be installed on the low voltage secondary side of the own transformers. —The protection ensures the operation of the island by ‘zero-stress’ monitoring. —The systems to be deployed will be included in EPH and lightning protection systems in accordance with existing regulations.