Wholesale bess battery system in Poland

As expected, Poland's latest capacity market auctions have highlighted a significant shift towards the battery energy storage systems (BESS) beside the fact that the de-rating factor has been significantly decreased.

BESS are rechargeable batteries that enable energy from many sources, such as renewables - solar, wind, to be stored and then released when the national grid requires power. Batteries are grouped and housed adjacent to inverters. Convert the DC current from the batteries to the AC current of the national energy market.

Battery energy storage systems (BESS) enable more renewable energy to be fed into the grid. BESS can answer to demand peaks and thus have a dampening effect on energy prices on the electricity exchange as well as reducing the load on the grid.

The recent capacity market auctions have underscored the growing importance of battery energy storage systems (BESS) by new generation capacity market units, predominantly lithium-ion energy storage projects. Entrix's entry into the Polish market is timely, offering investors a proven and reliable partner to navigate this evolving sector.

The capacity obligations for these projects ranged from 1.2 MW to 153 MW rated power, with an average capacity of around 30 MW. The decision to reduce the de-rating factor for energy storage systems in the last capacity market auction in Poland from 95 percent to 61 percent did not prove detrimental to the market.

While the outlook for large batteries in Poland appears strong in 2025, Clean Horizon warns that this opportunity may not endure. Utility-scale storage can quickly saturate ancillary services markets, leading to a rapid decrease in opportunities for front-of-the-meter batteries.