Electricity

Premier Energy acquires 400 MWh battery energy storage project

romania premier energy bess Iasi battery

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Published

November 26, 2025

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Published:

November 26, 2025

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Premier Energy has acquired a project for a 400 MWh battery energy storage system at a site near Iași, Romania’s third-largest city.

Premier Energy Group has announced the acquisition of 100% of a ready-to-build project for a battery energy storage system (BESS).
The planned power input and output is 200 MW, while the energy storage capacity would be 400 MWh.

Premier Energy Group is an electricity producer, distributor and supplier as well as natural gas distributor and supplier in Romania and Moldova. It owns and operates a total capacity of 1,100 MW.

The investment is estimated at EUR 75 million

The company has 328 MW in renewable energy projects under construction and in the pipeline.

Premier Energy revealed that the total development and construction cost of the battery near Iași is estimated at EUR 75 million. The firm’s management is currently in advanced discussions on financing options for the project, the update reads.

It expects to secure a long-term financial structure, while the BESS project would be commissioned in late 2026 or early 2027.

Garza: It will be among the largest battery plants in Southeastern Europe

In a market characterized by significant 15-minute price fluctuations and an increasing number of prosumers, the facility will enhance flexibility, reduce system costs and support the efficient integration of renewable generation, the company underscored.

According to José Garza, Premier Energy Group CEO, the project aligns naturally with its strategy of building a more flexible, integrated electricity platform in Romania.

“Its scale places it among the largest battery plants in Southeastern Europe, and it will support the market by helping to alleviate intraday price volatility, improve grid stability and complement our renewable production and supply activities,” he added.

Stohr: Large-scale storage enhances the efficiency of the entire value chain

Peter Stohr, Premier Energy Group CFO, explained that large-scale storage enhances the efficiency of the entire value chain, from production to supply, and creates important synergies with the company’s existing portfolio.

“We are already engaged in discussions with a major CEE financial institution regarding the project’s financing, and we are confident that this asset will integrate seamlessly into our broader energy platform,” he stated.

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