On 10 July 2026, electricity from the Baltic Power offshore wind farm began flowing into Poland’s national grid via the Choczewo substation, marking a historic moment for the country’s energy sector. This is the first time that power generated by Polish offshore turbines has been officially transmitted to the system.
The Baltic Power project, a joint venture between Orlen and Northland Power, has so far installed 54 of the planned 76 turbines, with several already generating electricity in the so-called First Power phase. The commercial launch of the entire 1,440 MW farm is expected later in 2026.
A milestone for Polish energy security
– We are building Polish security and Polish sovereignty. The whole world already knows that you cannot talk about security without including energy security – said Prime Minister Donald Tusk during the inauguration ceremony at the Choczewo substation.
– We have turned Poland’s face towards the Baltic – this substation, these wind farms, the nuclear power plant. Add to this road and railway investments – added Tusk.
– All investments necessary to transmit power from the first Polish offshore wind farms have been completed on time. It was a great effort by PSE and local Pomeranian companies that built the Choczewo station. This is also an example of using funds from the National Recovery Plan to build future infrastructure that will allow Poland to develop – said Grzegorz Onichimowski, president of Polskie Sieci Elektroenergetyczne (PSE).
The technical journey from sea to grid
Each turbine is connected via internal cables to one of two offshore substations, where voltage is stepped up from 66 kV to 220 kV. The electricity then travels through an export cable on the seabed and underground to an onshore substation owned by Baltic Power. There, transformers raise the voltage to 400 kV, and after synchronization, the power is directed to the PSE-operated Choczewo substation, which for the first time uses single-phase voltage transformers instead of traditional station transformers.
From Choczewo, the electricity flows into the national transmission system via high-voltage lines.
Financial and regulatory framework
The total investment cost reaches 20 billion PLN (about 4.7 billion EUR), with annual output expected at 4 TWh, covering nearly 3% of Poland’s average electricity demand. During the First Power phase, Baltic Power sells electricity at market prices without benefiting from the contract for difference (CfD) mechanism, which will apply after the commercial start. The company also pays a pre-license fee to the state budget, calculated by the Energy Regulatory Office.
Źródło: wnp.pl, Fot. Andrzej Jackowski / PAP
