Recommendation 14

The Government should, as a matter of urgency, finalise and set out the details of its business models to support commercial long-duration energy storage. We recommend that cap and floor support mechanisms are designed to support technologies that supply energy across different timescales, recognising the distinction between those that store energy for up to 24 hours and those that can store energy over days and weeks. The Government should clarify which technologies it considers to be eligible for the streams at different readiness levels, and whether the long-duration energy storage support mechanisms will be open to hydrogen. We recommend that hydrogen facilities intended for long-duration storage should be eligible for support and that the Government should resolve any overlaps between its policies.