Demonstration for Long-duration Battery Energy Storage Systems (BATT4EU Partnership)
EU-wide funding for demonstration projects on long-duration battery storage (>8 hours) within the framework of the Batt4EU partnership. Application deadline: 15.09.2027, planned project start: 05.05.2027.
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Grant criteria
Funding objective
Demonstration of system-related long-term energy storage solutions based on batteries to increase grid stability, resilience, and flexibility through innovative technologies and scaling potentials along the entire value chain.
Eligible expenses
- Personnel costs
- Material expenses
- Subcontractor services
- Travel expenses
Non-eligible expenses
- Retroactive costs
- Procurement of batteries outside the project demonstration
- Infrastructure investments without project relevance
Eligible to apply
- Companies
- Educational Institutions
- Non-profit Organizations
- Public Institutions
Funding requirements
- Consortium of at least three independent legal entities from different EU or associated countries
- Lead beneficiary appointed as coordinator
- Registration of all partners in the Participant Register
- Submission of the complete application by 15.09.2027
Documents required for application
- Project description
- Task and milestone plan
- Financing plan
- Curricula vitae of key researchers
- Consortium agreement
Evaluation criteria
- Innovative content of the storage concept
- Potential for grid stabilization and resilience
- Technological and economic feasibility
- Experience and composition of the partners
Description
The demonstration initiative for long-duration battery storage systems within the framework of the Batt4EU partnership promotes innovative projects across Europe for the integration of long-duration storage with a capacity of more than eight hours. The goal is to test system-related battery-based energy storage solutions that enhance grid stability, resilience, and flexibility. Eligible to apply are consortia consisting of at least three independent legal entities from EU or associated countries, including companies of all sizes (SMEs and large enterprises), educational institutions, non-profit, and public entities. A coordinator who has registered all partners in the Participant Register acts as the lead beneficiary. Up to 70% of eligible costs for personnel, material expenses, subcontractor services, and travel costs can be requested, with a total budget of €9.4 million. Projects may start no earlier than 05/05/2027, and applications must be submitted by 15/09/2027 (5 p.m. Brussels time). Following positive evaluation, funding is granted in the form of a subsidy, with milestones and reports contractually agreed upon.
The selection is based on the criteria of innovation content, contribution to grid stabilization and resilience, technological and economic feasibility, as well as the experience and composition of the partners. Evaluators assess excellence, expected impact, and the quality and efficiency of implementation. The consortium is determined through a transparent ranking and receives an invitation for grant preparation. Interim and final reports serve to verify the achievement of objectives. Additionally, project participants commit to disseminating results, for example through scientific publications, workshops, and participation in monitoring activities of the Batt4EU partnership. This funding instrument thus makes a significant contribution to establishing sustainable energy storage in Europe and supports the digital and green transition towards climate-neutral energy supply.