Czech regulator grants licence to largest Czech battery. Licensed capacity passes first milestone

Electricity storage licences are now held by battery storage facilities with a combined capacity of more than 121 MW, over three times the capacity recorded at the beginning of June. The largest individual licensed project is now BESS Vraňany, with a capacity of 20,448 MW. Although larger storage facilities have also been commissioned, they are still awaiting their licences. 

At the turn of May and June, the Energy Regulatory Office (ERÚ) recorded nine active electricity storage licences with a total capacity of 39,705 MW. Over the following three months, the number of facilities on the register rose to 30 and licensed capacity increased by more than 80 MW.

Further data show which projects have already passed the administrative licensing stage, how many applicants are currently awaiting a licence, and how rapidly battery economics could change in the day-ahead market and in planned capacity auctions.

Vraňany surpasses previous licensed projects

The largest August addition was BESS Vraňany in the Central Bohemian Region, which, according to the ERÚ register, has a capacity of 20,448 MW and an operational start date of 20 August 2026.