Hydroelectric Power: Storage
Commons · Question 115131 · Tabled 23 Feb 2026 · Department for Energy Security and Net Zero · Official record
Answered 3 Mar 2026
Question
Asked by James McMurdock
To ask the Secretary of State for Energy Security and Net Zero, what recent assessment he has made of the viability of expanding the utilisation of pumped hydroelectric storage in the energy grid.
Answer
Answered by Michael Shanks, 3 Mar 2026
There is already 2.8GW of pumped storage hydropower (PSH) on the GB electricity system, which is a form of Long Duration Electricity Storage (LDES). The government agrees that GB needs more LDES, which is why the Clean Power 2030 Action Plan envisages an ...