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Horizon Europe Cluster 5 — Climate, Energy and Mobility

Retrofitting Infrastructure for Energy Storage

Funds €7.5M projects that turn obsolete energy and industrial infrastructure into secure, circular energy storage for a more flexible grid.

ScheduledEuropean CommissionEU

Europe needs more flexible energy storage, but new storage assets can be expensive and resource-intensive to build. This topic funds projects that give obsolete infrastructure a useful second life while demonstrating novel or improved storage technologies.

A project might retrofit an old hydropower dam or basin, a decommissioned power plant, a former industrial site, a coal mine or fossil-fuel in

Demonstrate novel or improved energy storage technologies integrated with obsolete or outdated energy or other infrastructure, such as old hydropower dams and basins, decommissioned power plants, former industrial facilities, coal mines or fossil-fuel infrastructure. Projects should optimise storage capacity and efficiency while improving circularity, energy security and socioeconomic and environmental sustainability. They should use stakeholder outreach, address environmental impacts, apply secure-by-design principles and contribute to grid flexibility, while participating in the BRIDGE initiative.

CycleiHow often this grant runs — e.g. annually, on a rolling basis, or a one-off call.Biennial
Next deadlineiThe next date applications are due. Rolling means you can apply any time.1 Dec 2027
Decision timeiTypical time from the deadline to the funder's decision.22 weeks
Project durationiHow long the funded work is expected to run.
Award typeiThe form of funding — grant, equity, loan, tax credit, etc.Grant
Match fundingiThe share of project costs you must cover yourself. 0% = fully funded.30%
Funding pooliThe total budget available across all awards in this round.€22.5M

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Last verified: 25 Aug 2026Funder reference: HORIZON-CL5-2027-07-D3-27Source: ec.europa.eu