Sunotec and Sungrow partner on 2.4 GWh battery storage rollout in Bulgaria and Europe

Sunotec has announced it has signed a deal with Sungrow to deploy 2.4 GWh of BESS across a series of co-located solar and standalone energy storage projects in Bulgaria and “other” European markets. It marks the first use of Sungrow’s BESS technology in Bulgaria.

The projects include standalone and hybrid PV sites, with some backed by Bulgaria’s RESTORE national funding program. Sungrow will supply its PowerTitan 2.0 BESS and inverters to be integrated across Sunotec’s portfolio, with the recent release of the PowerTitan 3.0 still only in China for now.

“The global energy transition depends not only on how much renewable power we produce, but on how intelligently we manage and store it,” said Kaloyan Velichkov, CEO of Sunotec. “This partnership with Sungrow reflects our shared ambition to lead the next chapter of clean energy.”

Anastasios Gkinis, Sungrow’s Regional Director for CEE, SEE & CIS, added: “This collaboration with Sunotec is a cornerstone of our mission to accelerate clean energy deployment in Bulgaria and across Europe.”

The projects aim to improve grid stability and enable greater renewable penetration in Southeastern Europe, where large-scale storage remains limited.

Sunotec says the agreement fits into a broader shift toward flexible, storage-enabled solar infrastructure. The company has built over 11 GW of PV projects to date, and operates one of the largest solar construction fleets in Europe.