Bulgaria’s energy storage sector has reached yet another milestone, with Solarpro Technology, in collaboration with CATL, commissioning a 602 MWh battery energy storage system (BESS) in Burgas – the largest such facility in the country and Eastern Europe, Solarpro has announced. The project surpasses the previous record held by a 601.8 MWh BESS in Bulgaria’s Nova Zagora, put into operation earlier this year by Austria-based Enery.
The new BESS increases Bulgaria’s total energy storage capacity by 10%, facilitating the integration of renewable energy sources, such as wind and solar, and supporting the reliable and stable operation of the national power system, according to a press release from Solarpro.
Solarpro led the engineering, procurement and construction (EPC), as well as the full integration of the BESS.
According to Adelin Antonov, CEO and Board Member at Solarpro, this is currently the largest operational battery energy storage facility in Eastern Europe. “The combination of CATL’s advanced energy storage technology with Solarpro’s efficient integration made it possible to bring the facility into operation quickly and reliably,” he said.
The new BESS has increased Bulgaria’s overall energy storage capacity by 10%
The company said that the Burgas BESS project is powered by CATL’s TENER energy storage system, the world’s first 6 MWh-class zero-degradation solution. TENER achieves zero degradation in both capacity and power during the first year of operation and offers advanced corrosion and seismic resistance, making it highly suited for demanding operational environments, it added.
“This project shows what’s possible when world‑class battery innovation meets exceptional local execution. With this momentum, we look forward to deepening our partnership and bringing the first Tener Stack solution to Eastern Europe,” according to Amanda Xu, CTO of ESS and President of ESS Europe at CATL.
Solarpro and CATL plan to expand their cooperation in energy storage
Solarpro and CATL plan to further expand their collaboration in the energy storage sector over the next two years, the press release added.
