Thermal Energy Storage

Summary

To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the potential impact of thermal energy storage within heat networks on the (a) need for grid reinforcement and (b) operation of the electricity system.

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Timeline

1. 10 March 2026

   Written question

   To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the potential impact of thermal energy storage within heat networks on the (a) need for grid reinforcement and (b) operation of the electricity system.

   Source: Commons

2. 18 March 2026

   Answer

   The Department has not yet made a full quantitative assessment of the flexibility benefits of thermal energy storage within heat networks. The electricity distribution network benefits of heat networks has been estimated at between £5 to 7bn in avoided co...

   Source: Written answer

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• · Department for Energy Security and Net Zero · Answering body

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