The main components of the DC section of the power plant are mono-crystalline PV modules Sinski PV SPV180M-24, with nominal power of 180 Wp and voltage of V_MPP = 36V. The power plant consists of 840 modules, forming 2 plates, as follows: 1 plate with 520 modules with inclination of 5° and 1 plate with 320 modules with inclination of 11.2°.

The generated electricity is fed to 12 inverters and to each inverter are connected 5 strings, consisting of 14 serially-connected modules.

Both end modules of each string with DC cable RADOX Solarcable single core 1 х 4 мм²cable are connected to a DC switchboard, equipped with PF10 8A gR fuses – one on each pole. DC switchboard, with DC cable RADOX Solarcable single core 1 х 6 mm² cable to the inverter input. The cables on the roof are laid in a wire cable tray with cover 60/60mm and 100/35mm for outdoor installation, and under the roof in a perforated cable tray.

For this project were selected SMA Technologies inverters, Sunny Mini Central SMA SMC 11 000 TL model.

They are installed on the wall under the roof – section 2, grouped into three by four and each is connected via a CBT-c 3 х 16 mm² cable to a properly sized circuit breaker into the main switchboard.

An overvoltage protection is provided for the power plant as follows: In the intermediate switchboard – PROTEC C 160/320 (3 + 1) cathode surge arrester; for each DC switchboard – PV PROTEC C 40/550 DC cathode surge arresters, type 2.

To achieve the necessary parameters of the earthing system 6 earthing devices are provided. The earthing system consists of Al wire with intersection of Ø 8mm, installed on the aluminum structure of the panels using mounting brackets providing sufficiently low transition resistance of the connection. Each earthing device consists of a set of 3 galvanized steel poles with dimensions of 50/50/5 mm, L=1500mm and revision-control box. The connection between the revision-control box and the earthing devices is done with galvanized steel bar 40/4 mm.

For lightning protection system was chosen early streamer emission lightning conductor SCHIRTEC – A E.S.E. The shaft height is 3.5 m. The central monitoring and control device is Sunny Web Box. The monitoring and control device is installed in a low voltage switchboard.