/SOFIA, BULGARIA, April 7, 2026, 9:30 CEST, RENEWABLE MARKET WATCH™/
Sunotec, a top-tier European integrator specialising in utility-scale solar and battery storage projects, has announced the closing of a structured equity investment from funds managed by Blackstone Tactical Opportunities. This strategic partnership is designed to accelerate Sunotec’s international growth trajectory, while bolstering its expertise in grid integration and advanced renewable energy solutions.
Blackstone’s capital injection will fuel Sunotec’s growth across key European markets—including Germany, the United Kingdom, Scandinavia, and Southeast Europe—while empowering the company to broaden its service portfolio and develop complementary capabilities, such as large-scale grid infrastructure. The collaboration also aims to scale Sunotec’s hybrid renewable energy asset platform and deepen its commitment to sustainable infrastructure investments, positioning the company as a front-runner in next-generation energy systems.
Sunotec is a leading European integrator of utility-scale solar and battery energy storage projects, with about 15 GW of solar capacity installed across diverse markets. In the past two years alone, the company has delivered 5 GW of utility-scale solar and 5 GWh of BESS installations, leveraging accelerating demand driven by the energy transition and electrification trends.
In addition, Sunotec has built a rapidly expanding, regionally diversified energy infrastructure portfolio, spanning a wide range of renewable technologies and strategies. The company is poised to capture additional market opportunities and play an active role in Europe’s ongoing energy transition.
This partnership combines Blackstone’s thematic investment focus on digital and renewable energy infrastructure, including electricity grid services, with Sunotec’s industry-leading capabilities in engineering, deploying, maintaining, and operating large-scale solar and battery storage systems. Sunotec’s proven expertise in integrating medium- and high-voltage grid infrastructure further strengthens the value proposition of this alliance.
Sunotec’s founders and executive team will retain majority ownership, maintaining full strategic and operational control of the business as it enters this new growth phase.
Kaloyan Velichkov, Founder and CEO of SUNOTEC, said: “Blackstone’s investment marks an important milestone in Sunotec’s journey. Over the past 13 years, our team has built one of Europe’s leading large-scale solar and storage businesses through execution, speed and a relentless focus on delivery. With Blackstone as a partner, we will accelerate our expansion across Europe and enter selective new markets. At a time when the world’s energy transition needs faster deployment of renewable energy, battery storage and the grid infrastructure around it, this partnership gives us even greater capacity to deliver at scale.”
Amer Khatoun, Senior Managing Director, Blackstone Tactical Opportunities, said: “Sunotec has built a strong track record delivering and operating utility-scale solar and battery storage projects. We are delighted to partner with the company as it continues to scale its integrated platform, expand its operating asset base and deepen its grid infrastructure capabilities.”
J.P. Morgan SE acted as Exclusive Financial Adviser and Sole Placement Agent to Sunotec, with Linklaters and DGKV acting as Legal Advisors.
For more information and answers to your questions about the Bulgarian battery energy storage system (BESS) market and related content, you may read here: Bulgaria Solar Photovoltaic (PV) and Battery Energy Storage System Market Outlooks 2025 – 2034
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