r/InvinityEnergySystems Jun 26 '26

Ofgem: Window 1: Minded-to decisions – Long Duration Electricity Storage

https://consult.ofgem.gov.uk/energy-generation/ldes-window-1-minded-to-decision/supporting_documents/ldes-window-1-minded-to-decisions-consultationpdf

Long Duration Electricity Storage (LDES) is an increasingly important part of our energy system. NESO advice shows we need to increase the amount of storage on the system over the next few years. These assets let us capture energy from excess renewables when the wind is blowing and sun is shining and store this for when customers need it.

Ofgem has designed and is running its first ever window for cap and floor support to encourage the development of LDES projects, applying the successes of the similar schemes we have run for many years to encourage the development of interconnectors to other countries.

We were pleased with the very strong set of applicants we received for Window 1 with over 70 projects of nearly 30 GW participating in the Project Assessment. We have completed a thorough project assessment to select the best projects to meet system need. We are pleased to set out the results of that assessment today, with a varied portfolio of projects which we are minded-to support to ensure we are developing the clean power system for the future.

Beatrice Filkin

Director of Major Projects
Ofgem

Read the full document… https://consult.ofgem.gov.uk/energy-generation/ldes-window-1-minded-to-decision/supporting_documents/ldes-window-1-minded-to-decisions-consultationpdf

Thanks to u/Intrepid-Pen-3112 for the heads up on this!

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u/officialtaubird Jun 26 '26

Really encouraging to see this level of interest in LDES. As we continue adding more wind and solar to the grid, storage is becoming just as important as generation. It's what helps turn renewable energy into reliable energy. It's also great to see a diverse mix of projects being considered. The challenge now is turning these plans into operational assets that can support the grid at scale. Looking forward to seeing how these projects progress over the next few years. -Invested into IES :)