A double-header of Poland grid-scale BESS news, with GoldenPeaks Capital entering the market with a two-project acquisition, and R.Power securing a PPA for a solar-and-storage project.

The Federal Court of Justice in Germany has rejected an appeal against BESS being eligible for the BKZ construction fee, a decision which means potentially millions more in costs for building projects in the country.

BESS developer-operator Dais Energy Ventures and investor Electric Land have announced a joint venture (JV) to develop, build and operate 4GW of BESS projects in Germany.

Owner-operator BW ESS and developer Ibersun have entered into a partnership to develop and deploy 2.2GW of BESS projects in Spain.

Developer Ilmatar and investor Nuveen Infrastructure have put a 30MW/41MWh BESS in northern Finland into commercial operation.

IPP Econergy has entered the energy storage market in Germany with two BESS project acquisitions totalling 100MW/200MWh of capacity.

Developers Acacia, Green Tower and Eren Industries have partnered to develop and build 500MW of standalone BESS in France.

Owner-operator Eco Stor has connected what it claimed is the largest BESS in Germany to the grid, while its former majority owner is going to build a BESS in Finland.

A pinch under 6GWh of grid-scale BESS was approved for construction in the UK last month, bringing the total with planning consent to nearly 130GWh.

Germany is regularly described as Europe’s hottest market for energy storage, but its current regulatory framework is holding it back and changes down the line are also a concern.