SUNOTEC and Sungrow have announced a groundbreaking partnership to deploy 2.4 GWh of battery energy storage systems (BESS) across several solar energy projects in Bulgaria and broader Europe. Signed on July 28, 2025, in Sofia, the deal marks a major step in energy transition for Southeastern Europe, combining SUNOTEC’s expertise in solar infrastructure with Sungrow’s globally acclaimed storage technology. The new portfolio includes large-scale projects, with some backed by Bulgaria’s RESTORE program, and represents the country’s first BESS deployment featuring Sungrow’s advanced PowerTitan 2.0 systems.
Signing Ceremony between SUNOTEC and Sungrow. Image: SUNOTEC
The collaboration comes as Bulgaria and the region push for smarter energy systems that not only generate renewable power but store and distribute it more efficiently. SUNOTEC will integrate Sungrow’s cutting-edge solutions—including the SG350HX-20 string inverter and MVS platform—into hybrid solar-storage projects designed for grid stability and better renewable integration.
Sungrow’s regional director Anastasios Gkinis called the partnership a "cornerstone" for clean energy in Europe, aligning Sungrow’s scalable storage technology with SUNOTEC’s proven construction capabilities.
Since 2025, Chinese energy storage enterprises have been expanding vigorously into overseas markets, with Europe performing particularly prominently as a core market. According to CNESA DataLink’s global energy storage database, in the first half of 2025, the order volume from Chinese energy storage enterprises to Europe exceeded 22GWh, accounting for 12% of the total global overseas volume, highlighting Europe’s important position in the global expansion layout of Chinese energy storage.
As an industry-leading enterprise, Sungrow continued to expand its global market share in 2025, successively securing multiple landmark orders. In addition to the European market, its overseas business also covers several key regions including Japan, Africa, and South America, with publicly disclosed order volume exceeding 2GWh in the first half of the year.
In terms of utility-scale storage, one of the largest energy storage projects in Latin America was signed, adopting Sungrow’s PowerTitan 2.0 liquid-cooled battery energy storage system and medium-voltage power conversion unit.
In the commercial and industrial storage sector, Sungrow announced the establishment of a new strategic distribution partnership with Italy’s well-known renewable energy solutions provider PM Service S.p.A. The agreement includes the purchase of 100 PowerStack liquid-cooled energy storage systems for commercial and industrial use.
In the operations and maintenance services sector, Sungrow signed a letter of intent and a 15-year service list with African independent power producer Globeleq for the Red Sands BESS project, to provide the PowerTitan 2.0 fully liquid-cooled energy storage system for the 153MW/612MWh project located in South Africa and take responsibility for comprehensive operation and support for 15 years.