Goldbeck Solar has completed construction of the Postomino solar park in the municipality of Nosalin, in Poland’s West Pomeranian Voivodeship. The ground-mounted photovoltaic installation has a capacity of 90 MW and covers around 110 hectares. Once operational, it is expected to generate approximately 96 gigawatt hours of electricity per year – enough to supply 32,000 households.
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Cable pooling ensures grid connection
Poland is facing mounting grid challenges, with connection requests increasingly rejected by operators. Like many European networks, the Polish grid was not built to handle large numbers of decentralised energy producers. Although a multi-billion euro upgrade package has been approved, implementation is currently expected to take decades. Agri-PV systems and east-west panel layouts can help reduce midday peak loads. The Postomino solar park forms part of a cable pooling project, sharing high-voltage infrastructure with a neighbouring wind farm. Goldbeck Solar Polska is responsible for the full project scope, from planning and construction to grid connection.
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South-facing layout proves most efficient for this site
According to Goldbeck’s planning team, the south-facing module layout makes optimal use of solar radiation and delivers maximum energy output while staying within legal limits on installed capacity. Although the design produces a pronounced midday peak, the system maintains high efficiency throughout the day and achieves the highest overall yield over time.
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East west was not an option
An east-west configuration would have produced a flatter generation curve with lower midday peaks. However, at this site, it would lead to reduced annual output, making it less economically viable. The project’s grid connection challenge is effectively addressed through cable pooling.
Synergies through cable pooling
Construction of the Postomino solar park is now complete, including the medium-/high-voltage substation (30/110 kV) and an approximately 8-kilometre-long 110 kV cable route for grid connection. Final testing, system configuration and commissioning preparations are currently underway. Tobias Schüssler, COO of Goldbeck Solar, said: “With the Postomino solar park, we are sending a strong signal for a sustainable energy future in Poland. The combination of photovoltaics and wind power through cable pooling demonstrates how synergies can be efficiently leveraged to drive the energy transition forward. We’re proud to have reached this milestone together with our Polish team.”
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Cutting carbon means cutting costs for energy users
With its expected annual power generation, the plant will cut CO₂ emissions by around 61,223 tonnes. This represents a significant contribution to the energy transition and climate targets and offers a clear economic benefit for users of clean solar energy, particularly as CO₂ prices continue to rise. (mg)
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