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EVE Energy signs 500MWh with CommVOLT to accelerate European storage

EVE Energy seals a 500MWh strategic agreement with CommVOLT in Europe for commercial and industrial storage at Solar & Storage Live UK 2025, as its five MWh direct current system enters deployment.

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EVE Energy signed a 500MWh strategic cooperation agreement with CommVOLT Sp. z o.o. during Solar & Storage Live UK 2025. The partnership targets energy storage systems (ESS) for commercial and industrial sites, with applications planned on the grid side and behind the meter. The companies plan to build reference projects in Central and Eastern Europe to improve grid stability and the absorption of renewable generation. The agreement covers the supply of storage capacity equivalent to 500MWh.

Industrial capacity and product portfolio

EVE Energy highlights a 628Ah storage cell that has been launched and put into mass production. The five MWh direct current (DC) system, “Mr.Giant”, integrating “Mr.Big” cells, was deployed in September in a standalone energy storage project of roughly 400MWh. Shipments of these systems have begun to Australia and Europe. The group presents this offering as a step in the global application of its large-capacity batteries and systems.

European demand for grid-side storage is increasing alongside the rising share of renewables. According to the company, “Mr.Big” cells optimise system integration, reduce heat generation and aim for simplicity and reliability, with an effect on life-cycle cost (LCOS). The equipment is designed to meet multiple industrial and operational constraints. The announcements were made at the industry event dedicated to solar and storage.

Scope of the agreement and geographic target

The partnership with CommVOLT directly targets the scale-up of commercial and industrial ESS in Europe. The parties say they intend to align products with market needs, contribute to grid stability and increase the ability to absorb variable energy. CommVOLT Sp. z o.o. is presented as a Polish innovator of smart photovoltaic (PV) systems, with a focus on Central and Eastern European markets. The agreement formalises a deeper cooperation between the two companies to accelerate execution of regional storage projects.

EVE Energy also exhibited a portfolio covering several European scenarios: ESS for utilities, ESS for commercial and industrial sites, ESS for telecommunications and residential ESS. The company states it addresses needs for energy security, cost reduction and efficiency through modular technology platforms. Detailed financial terms or specific timelines for the programme were not disclosed. The storage cells reach a nominal capacity of 628Ah.

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