Sunotec, European integrator of utility‑scale solar and battery storage projects, has announced a new partnership following a structured equity investment from funds managed by Blackstone Tactical Opportunities.
The investment is set to strengthen Sunotec’s growth across its core European markets, including Germany, the UK, Scandinavia and Southeast Europe. It will also support the expansion of its existing services and the development of additional capabilities, particularly in grid infrastructure.
A key focus of the partnership is scaling the company’s hybrid renewable energy asset platform and reinforcing its commitment to sustainable infrastructure. Around 15 GW of solar capacity across several markets, including 5 GW of utility‑scale solar and 5 GWh of battery energy storage systems have been realised over the past two years. The firm has also built a rapidly growing, regionally diverse energy infrastructure portfolio spanning multiple renewable technologies. Its leadership aims to capture further opportunities while supporting Europe’s shift towards cleaner energy. The company’s founders and leadership team will remain majority shareholders and continue to guide the company’s strategy.
The collaboration brings together Blackstone’s thematic expertise in digital and renewable energy infrastructure with Sunotec’s strengths in engineering, deployment, maintenance and operation of large‑scale solar and battery systems, as well as its experience in integrating medium‑ and high‑voltage grid infrastructure.
Kaloyan Velichkov, Founder and CEO of Sunotec, said: “Blackstone’s investment marks an important milestone in Sunotec’s journey… this partnership gives us even greater capacity to deliver at scale.”
Amer Khatoun, Senior Managing Director at Blackstone Tactical Opportunities, added: “Sunotec has built a strong track record… we are delighted to partner with the company.”
The transaction is expected to complete in H1 2026, subject to regulatory approval.
Image: Kaloyan Velichkov. Credit: Sunotec.


