Bulgaria opens public consultation on subsidies for 1.9 GWh of battery projects

Bulgaria’s Ministry of Energy has launched a public consultation on a new round of its subsidy program for battery energy storage projects, aimed at facilitating the integration of renewable energy sources. The plan is to support the deployment of 1.9 GWh of new battery capacity with around EUR 118 million.

In the first round of the National Infrastructure for Storage of Electricity from Renewable Sources (RESTORE) program, Bulgaria approved EUR 587 million in subsidies for 82 battery energy storage system (BESS) projects totaling 9.71 GWh, with another 30 applicants falling below the threshold.

Draft application and implementation documents for RESTORE 2 will be available for comments and proposals until September 15, while a tentative date for inviting applications for grants is September 18.

The BESS systems are expected to be deployed throughout the country and connected to the transmission network or the distribution grid. A BESS system must have a minimum nominal AC capacity of 10 MW to qualify for the program.

The minimum required capacity is 10 MW

The maximum support is 50% of the eligible project costs, but not more than BGN 156,466 (EUR 80,000) per 1 MWh of usable energy capacity, according to the documents. In the previous round, the maximum support per 1 MWh was BGN 148,600 (around EUR 76,000), Economic.bg recalled.

The deadline to build and commission the BESS capacities is July 31, 2026. The battery systems selected in the first part of the program must come online by the end of March 2026.

The new round of RESTORE aims to finance projects in more advanced stages

Another difference from the previous call is that proposed projects must be in a much more advanced stage. In addition to a connection agreement, applicants must already have a construction permit or installation permit issued, a signed supply contract or orders and payments made for the equipment for the storage system, as well as secured financing for the investment, according to the draft documents.