DEI and Metlen expand energy storage footprint in Southeast Europe

energy storage renewable energy DEI Metlen battery technology

DEI and Metlen are accelerating their joint energy storage strategy, targeting the development of up to 1,500 MW of battery capacity and 3,000 MWh of storage across Romania, Bulgaria, and Italy. The first phase of this partnership is expected to deliver 300-500 MW of battery projects by the first quarter of 2027.

This expansion is part of a broader €11.8 billion investment program through 2030, aimed at creating a regional energy market. The strategy includes adding 1.5 to 2 GW of renewable energy capacity annually in Greece and Eastern Europe, focusing on solar, wind, and flexible production to address the growing need for grid stability.

In Greece, the Ministry of Environment and Energy is preparing four subsidy programs with a total budget of €200 million to support battery storage for businesses, municipalities, and investors. Meanwhile, the GREGY project, an interconnection between Greece and Egypt, aims to complete studies by early 2028, with the potential to reduce wholesale energy prices by 25%.

Entities

Bulgaria · DEH · DEI · Greece · Italy · Metlen · PPC · Romania · Southeast Europe

Claims

What the coverage asserts, and how many sources carry each claim.

[● 4 SOURCES] The initial phase of battery projects will have a capacity of 300-500 MW. www.mononews.gr · www.newmoney.gr · www.powergame.gr
[● 2 SOURCES] DEH aims to add 1.5 to 2 GW of new renewable energy capacity annually until 2030. www.ot.gr · www.newmoney.gr
[● 2 SOURCES] DEH plans to invest approximately 11.8 billion euros through 2030. www.ot.gr · www.newmoney.gr
[● 5 SOURCES] The joint venture aims for a total portfolio of 1,500 MW and 3,000 MWh of storage capacity. www.mononews.gr · www.newmoney.gr · www.powergame.gr
[● 4 SOURCES] Metlen is responsible for the development and construction of the infrastructure. www.mononews.gr · www.powergame.gr
[● 5 SOURCES] The first battery projects in Bulgaria and Romania will be completed by the first quarter of 2027. www.mononews.gr · www.newmoney.gr · www.powergame.gr
[● 5 SOURCES] The partnership involves a 50/50 split in capital and revenue between DEH and Metlen. www.mononews.gr · www.newmoney.gr · www.powergame.gr
[● 4 SOURCES] DEH is responsible for the commercial management of the batteries. www.mononews.gr · www.powergame.gr