Energa Readies 170-MW Kotla and Losienice Solar Farms for Commissioning

• Energa, part of Orlen, completes Kotla 130 MW and Losienice 39.9 MW PV plants, bringing 170 MW of new solar capacity onto Poland’s grid by end-2025.

Polish utility Energa has finished construction at its twin flagship photovoltaic projects—Kotla in Lower Silesia (130 MW) and Losienice in Pomerania (39.9 MW)—clearing the way for grid-connection tests and first power later this year. Once both farms reach full output, they will generate enough electricity to cover the annual consumption of roughly 85,000 Polish households, strengthening Orlen Group’s push to cut coal use and meet rapidly rising demand for clean energy.

Kotla stands out as one of the largest single-site solar plants in Central Europe. Contractors have installed more than 222,000 solar panels and 355 inverters across 180 hectares, threading a 14-kilometre export cable—including a 970-metre directional drill beneath the River Odra—to reach the distribution network. The array will energise in stages: an initial 80 MW tranche is due online in Q4 2025, with the remaining 50 MW scheduled after grid-modernisation works by the local operator are complete. 

Up north, the 43-hectare Losienice site features 64,500 modules and 95 inverters, backed by a new 110-kV main offtake substation and a 5.5-kilometre high-voltage link to the Kościerzyna grid hub. Like Kotla, Losienice will undergo a short period of commissioning and reliability testing before entering commercial operation, with full capacity targeted for early 2026. 

Both projects secured 15-year contracts for difference in Poland’s most recent >1-MW renewables auction, giving Energa revenue certainty while supplying the National Power System with competitively priced solar electricity. Beyond Kotla and Losienice, the company is building five additional PV farms totaling 42 MW across three provinces and recently acquired the 112-MW Serby site, also in Lower Silesia, positioning itself as a top-tier solar developer in a market once dominated by onshore wind. 

Parent group Orlen aims to lift its renewable portfolio to 9 GW by 2030 and 12.8 GW five years later, complemented by Poland’s first offshore wind projects. The successful build-out of Kotla and Losienice not only inches Orlen toward those milestones but also signals that large-scale PV, once hampered by land-use and grid constraints, is maturing into a reliable pillar of the country’s decarbonisation strategy.