How much long-duration energy storage (LDES) does the UK system need, is the government’s cap-and-floor the right way to procure it, and what does the long-term picture look like?

Power firm RWE has partnered with distributed battery storage firm Polarium for a battery-based virtual power plant (VPP) in Germany.

Developer-operator Green Capital and EPC firm Electrum Holding have signed an agreement to build an 80MW/320MWh BESS in Poland, under a full ‘wrap’ model.

How should developers and investors think about long-term BESS revenues in light of eventual market saturation?

Power firm EnBW is building a 100MWh BESS in Germany for completion this year (a year later than planned) while BESS platform Noveria Energy has signed a construction agreement with TSO TenneT for a 1GWh project for 2028 operations.

We look at the potential of flow batteries for LDES and compare the leading providers’ offerings and trajectories.

BESS platform Ingrid Capacity has received construction permits for two projects in Sweden’s SE4 electricity region which it said could start construction as early as this year.

Building BESS is complicated, with myriad considerations around supplier contracts, site acceptance tests, data analysis, interface between different contractors.

The attractiveness of the BESS market for M&A and investment, amidst a slowdown in activity, was discussed on a panel at the Energy Storage Summit 2026 in London.

How can the industry prepare for when the first wave of utility-scale BESS projects begin to reach end-of-life?