This funding round has closed.

Ultra Long Duration Energy Storage Project Development Studies

Innovate UK, part of UK Research and Innovation (UKRI)

Applications closed

Funding: £350,000 – £700,000
Deadline: 30 September 2026
Location: England
Applications: Applications closed

Overview

UK businesses can apply for funding to develop ultra long duration battery energy storage demonstrators. The total pot is up to £3 million. Individual grants range from £350,000 to £700,000. You must be a UK registered business. Projects must be based in England. The deadline to apply is 30 September 2026.

Requirements to check

Who can apply:

limited company

Key requirements:

Must be a UK registered business
Project must relate to ultra long duration battery energy storage demonstrators

This summary may not include every exclusion. Check the full eligibility rules, including who and what the funder will not support.

Who is this for?

This grant is for UK registered businesses working on ultra long duration battery energy storage projects in England. You should be at the project development or demonstrator stage. It is not for businesses outside England or those working on other types of energy storage.

Sectors

Energy & Utilities Professional & Scientific Services

Regions

England

Full details from Innovate UK, part of UK Research and Innovation (UKRI)

UK registered businesses can apply for a share of up to £3 million for project development studies to support the development of ultra long duration battery energy storage demonstrators in the UK.