CATL to supply 918MWh Romania BESS, another 500MWh of projects progress elsewhere in CEE

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A flurry of project completions, financings and supplier deals for large-scale BESS across the Central and Eastern Europe (CEE) region, from Greenvolt, Renovatio & CATL, Eurowind, Renalfa, MOL Group, Tavion, MetaWealth and Enexus & Longi. 

The announcements come with the Energy Storage Summit Central and Eastern Europe 2026 right around the corner, taking place on 6-7 October in Warsaw, Poland. 

Renovatio Solar and CATL to deploy 918MWh Romania BESS for Greenvolt 

Construction is underway on a 918MWh battery energy storage system (BESS) project in Romania, one of the country’s largest. The owner is IPP Greenvolt, while Renovatio Solar is providing EPC services and lithium-ion giant CATL will provide the BESS technology. The project will reportedly be completed within 12 months. 

Eurowind completes 120MWh project in Romania

IPP Eurowind Energy Romania, through vehicle Teiuș Solar SRL, has completed and commissioned its 120MWh BESS in Teiuș, Alba County. It started building the project in March this year, with a total investment of €21 million (US$24 million).

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Enexus orders 50MWh of BESS from Longi for Romania project 

Developer and EPC firm Enexus will use 50MWh of BESS from solar PV giant Longi for two solar-plus-storage projects in Romania. The companies have collaborated on solar PV projects previously, but the 15MWh and 35MWh BESS projects in Dâmbovița County mark the first storage collaboration between them. 

Longi only recently entered the BESS space, with the acquisition of system integrator PotisEdge late last year

MetaWealth finances first Romanian BESS

Real estate investment platform MetaWealth has completed a €19 million financing structure for its first BESS, a 50MW/100MWh project, also in Romania. It comprises €10 million from CEC bank, €5.5 million from the founding Topolinski family, and €3.5 million from its securitisation and bond platform, which an executive explained to us in a recent interview. 

Renalfa IPP repowers, adds BESS to Bulgaria solar plant 

Renalfa IPP has completed the repowering and hybridisation of its Devnya PV plant in Northeastern Bulgaria. It has increased the plant’s capacity from 5MWp to 65MWp and added a BESS totalling 60MW/165MWh. Solarpro was the EPC contractor. 

Bulgaria is now the most battery-heavy electricity market in the world, explained one of the Energy Storage Summit Central and Eastern Europe event’s speakers in a recent Q&A with us. 

MOL Group completes solar-plus-storage in Hungary

Industrial firm MOL Group has completed a 37.4MWp solar, 20MW/40MWh BESS project in Hungary, called Algyő. The project benefitted from funds under Hungary’s EU-backed capex grant scheme for storage, head of communications Ambrus Halász said in a video on LinkedIn (image below). ‍

Tavion raises €50 million for Polish BESS projects

BESS owner-operator Tavion has raised €50 million in a fundraise and debt raise, which will go towards completing three projects in Poland totalling a combined 69MW. Leitmotif and Oberon Capital led the fundraise, which totalled €34 million, and construction will start on the first two projects this month. They are part of a 184MW portfolio Tavion intends to deploy in Poland. 

Another event speaker, this time from investor Claritas, gave us an overview of the big trends in the Polish energy storage market earlier this week

6 October 2026
Warsaw, Poland
The Energy Storage Summit Central Eastern Europe is set to return in September 2025 for its third edition, focusing on regional markets and the unique opportunities they present. This event will bring together key stakeholders from across the region to explore the latest trends in energy storage, with a focus on the increasing integration of energy storage into regional grids, evolving government policies, and the growing need for energy security.

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