Czechia's solar battery storage capacity is set to reach 6 GWh by the end of the decade, up from around 2.3 GWh today, according to analysis by Aurora Energy Research.
The country's current solar ESS fleet is made up almost entirely of behind-the-meter installations, with such systems accounting for 98% of installed capacity in 2024.
Aurora Energy says recent regulatory changes have opened the door for a major build-out in large-scale battery energy storage systems (BESS). In March, amendments to Czechia's Energy Act facilitated new revenue streams by permitting batteries to participate in wholesale markets and the ancillary FCR, aFRR and mFRR markets, while in August, connection procedures for BESS were sped up and simplified.
During a webinar presenting the analysts' findings, Hanna Wojtyniak, Commercial Sales Associate for Aurora Energy, explained that these reforms "will transform Czechia from more of a small, policy-driven market into a large flexibility hub for Central Europe".
Wojtyniak added that developers had anticipated these regulatory changes and started applying for grid connections earlier. "By mid-2025, over 1 GW of capacity was already reserved, which resulted in the grid being essentially full in some regions of Czechia," Wojtyniak said. "This shows how high investor confidence is in the new framework."
Czechia also ran its first standalone subsidy for storage this year, offering an €80 million ($93 million) budget. Patrycja Janowska, an Aurora Energy analyst, explained that the entire budget was used up within a couple of weeks, causing the allocation round to close the same month it opened after the submission of 700 applications.
