BESS – Battery Energy Storage Systems

BESS – Battery Energy Storage Systems

22 July 2025

BESS – Battery Energy Storage Systems

Construction

At P&Q, we’re proud to act as the general contractor responsible for the full-scale construction of two large BESS in Ełk and Turośń Kościelna, each with a total capacity of 800 MWh. This is more than technology – it’s a real contribution to the green energy transition and to improving the stability of the national power system.

Although renewable energy sources are developing rapidly, their dependence on weather conditions still poses a serious challenge to the stability of the power system. This is where BESS come into play. These systems are becoming the foundation of a modern, resilient and on-demand energy sector. BESS will support the transformation of Poland’s energy mix – from fossil fuels to innovative renewable technologies, including wind farms, solar power, and future-oriented hybrid energy parks combining all three. BESS systems can work in standalone version, based on participation in the Capacity Market, grid services and storage of low-cost renewable energy during their overproduction hours.

Thanks to BESS, we can:
✅ stabilize the operation of the electricity grid,
✅ maximize the use of renewable energy,
✅ improve national energy security,
✅ reduce the cost of balancing the power system,
✅ provide essential grid-support services.

📢 Curious how BESS works in practice? Stay tuned – we’ll show you what it looks like directly from our construction sites!

robert
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