Nearly 290,000 panels and 450 inverters – that is the total number of devices installed across two projects we are executing as the General EPC Contractor for Energa from the ORLEN Group. These are the PV Kotla (Lower Silesia) and PV Łosienice (Pomerania) photovoltaic farms. We have completed the key stage: the installation of all devices. Now we’re awaiting grid connection. Once fully operational, the power plants will supply clean energy to nearly 85,000 households.

PV Kotla in Numbers

The PV Kotla farm, located in the Głogów district, has an installed capacity of 130 MW, comprising 222,192 photovoltaic panels and 355 inverters. This facility covers an area of 183 hectares, equivalent to about 260 football pitches. The project involved 550 workers, with a peak of 310 people on-site simultaneously.

„An impressive achievement of this project is that between June and December 2024, we installed as much as 100 MW of PV structures and modules. This is a truly record-breaking pace, which posed a significant logistical challenge for the entire team,” says Żaneta Łukaszewicz, Project Manager at Electrum.

HV Line Under the Oder River Bed – A Spectacular Challenge in the PV Kotla Project

The project includes, among other tasks, the construction of a nearly 14-kilometer-long high-voltage (110 kV) cable line. Its key element is a 970-meter directional drill under the Oder River – the first of its kind in Poland for a PV project. The drilling pipes necessary for the conduit weighed 55 tons, which was just one of the many challenges of this project. The biggest one? Geology.

„The most significant challenge during execution turned out to be the difficult geological conditions along the drilling route,” says Magdalena Janusz, Construction Manager at Electrum. „Despite previously conducted geological surveys, we encountered swelling clays, which significantly complicated the work. It was necessary to modify the drilling technology and implement additional safeguards to ensure the stability of the borehole and a safe passage under the terrain obstacle.„

Thanks to the team’s commitment, the construction of the cable line was successfully completed, and the measurements yielded positive results. The next step will be the energization of the station.

Once fully operational, PV Kotla will join the select group of PV installations in Poland with an installed capacity exceeding 100 MW.

PV Łosienice in Numbers

PV Łosienice is a facility under construction in the Kościerzyna district in Pomerania. Its installed capacity is 39.9 MW, delivered by over 64,500 PV panels and 95 inverters. The farm occupies an area of 43 hectares.

We commenced work on the construction site in December of last year, and the first deliveries of support structures arrived in mid-January. The installation is now ready for grid connection, commissioning, and necessary tests.

Summary

Both investments – PV Kotla and PV Łosienice – are important steps towards increasing the share of renewable energy sources in Poland’s energy mix. Thanks to the dedication of the project and construction teams, we are nearing the moment when these modern installations will begin producing green energy at full scale.