This gives the answer to a Freedom of Information Request we sent in related to the 2025 Figures for amount of battery storage needed in Scotland in 2030 and 2

We asked:

“A Freedom of Information Request from September 2024 asked “Can you provide the figure of how
much Battery Energy Storage System (BESS) is needed in Scotland, with regards meeting Net Zero in 2050. I am looking for the figure in Gigawatts.”
They received this response which was related to NESO’s 2024 Future Energy Scenarios (FES) Report. The FES 2025 is now published but does not contain a breakdown of the projected Battery storage needed in Scotland at 2030 and 2050. Please could you provide the updated information related to the 2025 report.”

The reply:

NESO’s Future Energy Scenarios (FES) 2025 publication is available at: Future Energy Scenarios (FES) | National Energy System Operator, and the accompanying data workbook can be found at: Future Energy Scenarios 2025 Data Workbook V005.xlsx

Using building block level data contained in the data workbook, the FES 2025 suggests that between 3.4-5.3 GW of battery storage could be required in Scotland by 2030, and between 7.8-8.7 GW by 2050.

Please note that these ranges exclude the “Falling Behind” estimate, as this pathway does not
meet Net Zero.