We asked an FoI on how much Battery Energy Storage System (BESS) is needed in Scotland, with regards meeting Net Zero in 2050 according to the latest Future Energy Scenarios (2025) by NESO

Our Request

 “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: https://www.gov.scot/publications/foi-202400433145/ which was related to NESO’s 2024 Future Energy Scenarios 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.” 

Response to our request 

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.