EU energy storage policy, regulation analysis, and market dynamics
Hungary's energy storage market is rapidly expanding, driven by extreme intraday electricity price spreads and major corporate investments in hybrid solar and battery projects.
The German BESS market is witnessing significant corporate milestones, including a 1.6 GWh framework agreement between Sungrow and be.storaged, and a record hybrid PPA involving Salzgitter and Zelestra.
Tera Batteries is commissioning a 140 MW/105 MWh Storage as Transmission Asset (SATA) project in Spain's Balearic Islands, utilizing CATL's modular battery cabinets to strengthen grid security.
Spanish renewable firm Grenergy is advancing 944 MWh of battery storage projects in Romania and Poland, aiming for an 8 GWh operational portfolio by 2028 through its European Greenbox platform.
Delegates at the Energy Storage Summit Germany highlighted significant grid connection restrictions under flexible connection agreements, while upcoming cybersecurity legislation and capacity market designs pose new hurdles for the BESS sector.
The European Union installed a record 27.1 GWh of new battery capacity in 2025, driven by massive investments in Spain, which has now entered the top five European markets for energy storage.
Germany is witnessing a surge in hybrid solar-plus-storage PPAs for industrial decarbonization, while balcony energy storage systems are rapidly capturing residential market share.
Romania is launching a massive €650 million funding scheme for public-sector solar and BESS projects via the EU Modernisation Fund, alongside new corporate storage developments.
ECO STOR has completed the construction of Germany's largest battery storage facility in Saxony-Anhalt, backed by HDI Global, while the broader German BESS market sees massive pipeline expansion.
Hungary's installed battery storage capacity has nearly reached 1GW, driven by volatile intraday markets, as the country prepares to join European balancing platforms Picasso and Mari.
Spain's Ministry for the Ecological Transition has introduced a new capacity market to remunerate battery storage, alongside a massive €17 billion grid investment plan through 2030.
The German BESS market remains dominated by LFP technology with sodium-ion still unbankable, while massive projects like Fluence's 1GW/4GWh system and new grid-forming revenue streams emerge.