SUNOTEC finalised in September the financing of seven renewable energy projects in Bulgaria, including photovoltaic and battery storage units. These developments mark a strategic expansion for the company in its domestic market.
The projects are either directly owned by SUNOTEC or through Solaris Holding AD, a 50/50 joint venture with the main shareholders of Eurohold Bulgaria AD. The portfolio includes one hybrid project combining solar PV and storage, as well as six standalone Battery Energy Storage System (BESS) projects currently under development.
A 763 MWh storage portfolio backed by the state
The total portfolio comprises 115 MWp of solar capacity and 763 MWh of battery storage, positioning SUNOTEC among the leading private investors in Bulgaria’s energy infrastructure. The Bulgarian Ministry of Energy has approved subsidies for the standalone storage projects under the Restore programme, a national initiative supporting large-scale deployment of storage systems aimed at enhancing grid stability.
“These projects mark an important milestone in our development, not only as a turnkey solutions provider but also as a long-term investor in renewable energy infrastructure,” said Viktor Stefanov, Head of Independent Power Production at SUNOTEC.
Consolidated position in a transforming market
SUNOTEC and Solaris Holding are strengthening their portfolio of operational assets in the country, which already includes sites in Pernik, Verinsko, and Selanovtsi. The company continues to diversify its investments in energy storage, a rapidly growing segment across European markets.
As European grid operators increasingly integrate BESS into their balancing strategies, these projects support the scaling of a more flexible regional energy model. The installed storage capacity could also help address price volatility and the rise of intermittent production.
