HELLENiQ ENERGY starts operating €50 million battery storage facility in Thessaloniki
HELLENiQ ENERGY’s first large-scale battery storage facility has 100 MW of power capacity and can store 200 MWh to help Greece use more renewable electricity.
Thessaloniki, Greece. HELLENiQ ENERGY has commissioned its first large-scale battery storage facility after investing about €50 million to improve renewable electricity use. According to the group, the project extends its activities beyond renewable power generation into infrastructure that makes green energy more reliable and efficient.
Storage capacity and grid support
The group said HELLENiQ Renewables developed the facility at its industrial site in Thessaloniki. With installed power of 100 megawatts (MW) and energy storage of 200 megawatt-hours (MWh), it ranks among the largest electricity storage developments in Greece and Southeast Europe.
HELLENiQ ENERGY said the battery park would supply balancing services and flexibility to the Greek national transmission system, strengthening reliability, resilience and energy security.
The group explained that renewable generation can be curtailed when output surpasses demand at a given moment, leaving some available clean electricity unused. The facility will retain excess power for release when needed, limiting such curtailments and making room for additional renewable installations to join the national grid.
Regional project portfolio
According to HELLENiQ ENERGY, its renewable energy and storage development portfolio includes storage projects totalling more than 1 GW across Greece, Romania, Cyprus and Bulgaria, reflecting its broader regional expansion.
Sotiris Kapellos, chief executive of HELLENiQ Renewables, said investment over recent years across Greece and Southeast Europe had built a renewable energy and battery storage portfolio exceeding 6 GW. More than 700 MW of that portfolio is already operating, he said.
Strategic investment in batteries
Kapellos said the company was making strategic investments in electricity storage, which he described as essential to the future energy system.
He said batteries offered the flexibility required to accommodate more renewable power and limit curtailments, while helping create an electricity system with greater reliability, security and cost efficiency.
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