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European renewable energy developer WBS Power has unveiled plans for a massive gigawatt-scale data center near the village of Choczewo in Poland's Pomeranian Voivodeship. The project, named the Baltic Data Center Campus, is set to become the largest facility of its kind in Poland and one of the most significant in Eastern Europe, with a planned capacity of 3.2 gigawatts (GW).
The data center will be developed in phases, starting with an 800-megawatt (MW) stage. The first phase is expected to cost between €6.9 billion and €8.6 billion (approximately $8 billion to $10 billion). According to WBS Power, the campus will draw power from the nearby Choczewo Power Station.
The company has also expressed an intention to prioritize renewable energy. "We will definitely want to contract up to 40 percent of our electricity from renewable energy sources (RES) through PPA contracts", said WBS Power CEO Maciej Marcjanik in a statement to WNP.pl. "We will supplement the rest with grid consumption. Unfortunately, given the scale of the project and the renewable energy capacity in Poland, we are unable to secure our supply solely from green energy."
If approved, the development is expected to create significant employment opportunities, with several hundred jobs anticipated during the construction phase. Once operational, the data center is expected to employ between 200 and 300 staff.
However, the project still faces several hurdles before construction can commence. It requires formal planning approval from regional authorities, which includes an amendment to the local zoning plan and the acquisition of an environmental permit. In addition, WBS Power must secure critical components such as transformers and finalize an agreement with an investor to supply the necessary technology, including servers.
WBS Power CFO Hubert Bojdo highlighted the complexity of the undertaking, stating that securing these elements is key to moving forward with the project.
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The company has indicated a commitment to incorporating sustainable technologies into the data center's design. While decisions on specific emergency power supply and cooling systems remain pending, WBS Power is leaning toward a closed-loop cooling system to minimize environmental impact. According to Marcjanik, this approach is designed "so as not to draw water from the surrounding area."
The possibility of implementing a waste heat reuse scheme for the local community is also being considered but has not yet been finalized.
WBS Power, a subsidiary of the Polish renewable energy firm PST Solartechnik, is no stranger to ambitious data center developments. In December 2025, the company partnered with Prime Capital to develop a 500MW data center in Brandenburg, Germany, as part of "Project Jupiter." That project also includes a 500MW/2,000MWh battery energy storage system and is estimated to cost €500 million ($583.2 million).
The Choczewo project, however, marks a significant step up in scale and ambition for the company, with the potential to redefine Poland’s position in the Eastern European data center market.
Located in Wejherowo County, Choczewo sits approximately 75 kilometers northwest of Gdansk and near Poland's Baltic Sea coastline, making it a strategic location for this major development.
While the Baltic Data Center Campus has the potential to deliver transformative benefits for the region, its future depends on overcoming logistical, regulatory, and environmental challenges. As WBS Power navigates these obstacles, all eyes will remain on Choczewo as it prepares to host one of Eastern Europe’s most significant data center projects.
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