Southeast Europe’s energy market is moving into a more mature investment phase, with deal flow shifting away from early-stage renewable project pipelines and toward bankable platforms. Financing is increasingly focused on acquisition structures, grid upgrades and storage-led flexibility. Activity is concentrated in Romania, where large-scale M&A, wind project finance and battery-storage consolidation are advancing together. Across the Western Balkans, lender-backed infrastructure finance remains central, supported by development banks for transmission upgrades, heating decarbonisation and early large-scale solar development.
The largest transaction in the region involves Premier Energy’s planned acquisition of Evryo Group, valued at around €700 million. The deal is structured around a major Romanian utility platform and includes Distributie Energie Oltenia, the electricity distribution business, along with Evryo Power. This would give Premier Energy exposure to both supply and generation and regulated infrastructure. Premier has also secured an acquisition bridge facility of up to €825 million from J.P. Morgan and UniCredit to fund the transaction and refinance approximately €100 million of Evryo debt.
The bridge facility is positioned as a regional benchmark for larger-ticket, acquisition-led financing structures. It also points to a potential refinancing path via a bond or syndicated loan. Distribution networks, renewable assets and integrated supply platforms are increasingly being framed as financeable at scales that can attract international banks into SEE energy M&A.
Romania wind finance and contract-for-difference support
Copenhagen Infrastructure Partners has reached financial close on the 392 MW Peștera II wind project in Romania. The financing package totals around €510 million. The project is backed by a 15-year contract-for-difference for 245 MW, uses Nordex turbines and lists Electrogrup as balance-of-plant contractor. Commercial operation is expected in 2028.
The Peștera II structure combines elements lenders typically require for utility-scale renewable projects in the region. These include a large project size, visible revenue support through the CfD, an experienced sponsor, a bankable turbine supplier, a named local construction contractor and a defined commissioning timeline. The CfD revenue layer is designed to reduce merchant exposure while creating a more predictable cash-flow profile in markets affected by grid congestion, negative pricing and balancing exposure.
Development-bank renewable packages across Bulgaria, Greece and Romania
The European Bank for Reconstruction and Development is lending €175 million to PPC for around 400 MW of wind and solar projects across Bulgaria, Greece and Romania. The package is supported by an InvestEU first-loss guarantee. It is expected to support approximately 760 GWh of annual clean electricity generation and reduce emissions by around 390,000 tonnes of CO₂ per year.
The PPC programme reflects a shift from its Greek base toward a cross-border renewable developer position with a broader Southeast European platform. It also illustrates how large utilities can aggregate multiple renewable projects into financing envelopes rather than relying on single-asset structures. First-loss guarantee support is used to help mobilise debt in markets where regulatory risk, grid delays and merchant-price exposure raise the cost of capital.
Grid modernisation loans in Romania and transmission reinforcement elsewhere
In Romania, Delgaz Grid has secured an EBRD loan of approximately €57.3 million. The loan forms part of a broader RON 3 billion syndicated facility involving six commercial banks. The funding will support electricity-distribution modernisation in north-eastern Romania under Delgaz Grid’s 2026–2030 CAPEX programme.
The Delgaz Grid transaction also reflects grid investment moving into mainstream commercial-bank financing alongside development bank involvement. Renewable capacity expansion depends on distribution reinforcement, smart-grid capability, metering upgrades and network automation. The next constraint identified for Southeast Europe relates to whether transmission and distribution networks can absorb variable generation while managing two-way power flows and maintaining reliability during electrification and decentralised generation growth.
In Bosnia and Herzegovina, transmission company TransCo has secured a €46 million EBRD loan for four variable shunt reactors at substations in Banja Luka, Mostar, Tuzla and Višegrad. The equipment is intended to support voltage control and system stability while improving integration of renewable generation across the transmission network. Variable shunt reactors are described as not creating new generation but improving reactive power management and voltage stability.
The same lender-backed approach supports system readiness before renewable capacity translates into operational value. In markets where renewable projects are developed away from major consumption centres, cross-border flows can amplify network stress that requires substation-level grid-control solutions. The transaction therefore links the energy transition to substations, grid-control systems and transmission reinforcement as part of financed infrastructure work.
Serbia district heating decarbonisation plus solar debt approvals
Serbia’s latest lender-backed energy transaction covers the second phase of its biomass district-heating programme worth €31.9 million. Funding includes a €20 million KfW loan, a €9.9 million EU grant, and a €2 million German government grant. Upgrades are planned in towns including Prijepolje, Novi Pazar and Knjaževac.
The programme is expected to produce around 55,000 MWh of renewable heat annually while cutting emissions by approximately 20,000 tonnes of CO₂ equivalent per year. The blended structure of loans and grants is designed to enable smaller Serbian municipalities to access energy-transition capital when projects are framed around decarbonisation, heat security and public-service reliability.
A separate Serbia item sits in the lender pipeline for utility-scale solar financing. Solarina, owned by CWP Europe, has approval for up to €36.2 million of senior secured debt plus a €2.52 million guarantee facility for a 192 MWp solar PV plant. The project is positioned as Serbia’s largest solar plant to date and is linked to the country’s contract-for-difference framework.
The financing focus includes connection risk management, balancing exposure considerations and revenue stability requirements tied to bankability expectations for utility-scale solar development. A lender-supported 192 MWp project could act as a reference point where sponsors must demonstrate documentation covering permitting, grid access, dispatch, metering and market integration.
Montenegro interconnection corridor upgrade via EBRD funding
Montenegro’s transmission investment is led by CGES securing up to €15 million from the EBRD to upgrade a 220 kV transmission corridor linking Montenegro with Albania and Bosnia and Herzegovina. The upgrade is expected to double capacity on the Trebinje–Perućica–Podgorica–Vau i Dejes corridor to around 600 MW. While relatively small in absolute value, it supports interconnection capacity tied to balancing needs, hydro flexibility and cross-border flows.
The CGES financing also affects future renewable integration because transmission capacity influences how much new generation can be absorbed without curtailment or congestion-related delays. Montenegro’s role between the Adriatic region, Bosnia and Herzegovina, Albania and the wider Balkan electricity corridor places it within broader interconnection dynamics as EU accession progresses alongside regional market coupling.
Batteries expand through Romanian portfolios and regional joint ventures
Battery storage is emerging as a major SEE deal category with Romania again leading activity through portfolio moves. Renalfa Power Clusters has acquired an Arad County portfolio combining a 365 MWp solar project with a standalone battery energy storage system rated at 400 MW / 800 MWh. Renalfa plans to expand the first stage to 568 MWp of solar alongside 669 MW / 2,000 MWh of BESS.
A separate Romanian storage acquisition involves Electro-Alfa buying a 52 MW battery-storage project in Sibiu County valued at around €25 million. Storage is described as moving beyond an add-on role for renewables toward an investable asset class in markets with rising solar penetration, price volatility and grid constraints. Romania’s exposure to negative prices and increasing intraday volatility is expected to strengthen the commercial case for BESS where sponsors can stack revenues across trading activities including balancing and reserve markets.
PPC and Metlen are also advancing a 50:50 joint venture targeting up to
