Photovoltaic Power Plant Krumovo
Project Description
Photovoltaic power plant with power 173 kWp, connected to the distribution network of EVN ELECTRIC POWER DISTRIBUTION LTD, on MEDIUM VOLTAGE level by building new concrete complete transformer stations (CCTS) 0,4 / 20kV. Power plant is mounted on flat terrain, the panels are fixed on a steel structure. The construction is suspended on every 20m and starts on a new level, in order to overcome the natural displacement of the terrain.
Solar panels:
The installed 756 pcs. photovoltaic panels are Chinaland, with power at STC 230 Wp, polycrystalline solid.
Photovoltaic inverters:
For converting of electricity from the photovoltaic generator from constant to variable, as a request of the investor are used 5 pieces photovoltaic inverters of the German company Sunways - a particular model PT 33k. This transformerless inverter is very effective with a output power 33 kW, suitable for both indoor and outdoor installation.
Constructive solution:
The panels are designed to be fixed on steel “bedding” made of cold rolled profile sheets stainless steel of Voestalpine. Finishing layer is Zn600. The structure is only with bolted connections without welding because of preventing damages on the anti-corrosion coating. The foundation is piloted using steel poles with a length of 2.6 meters, reaching the designed depth of 2.1 meters.