National Grid ESO is the electricity system operator for Great Britain. We sit at the heart of the country’s energy network and it’s our job to make sure electricity is there when people need it. 

National Grid ESO is a legally separate business within the National Grid Group. We have our own Board, regulatory framework, and incentives programme.

We’re committed to being transparent with our actions as Electricity System Operator and sharing information with our stakeholders.

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Girl running in rain with glowlines

Annual Report 2022/23

Our Annual Report and Accounts gives our customers and stakeholders an insight into how we conduct our business, and our performance.  

It covers Key Performance Indicators, financial performance, governance arrangements, as well as our detailed accounts.

Readers to note that there is minor discrepancy in relation to the page numbers that are referred to in the PwC opinion. The relevant pages are p.43-44 and not p.28-30 as stated.

Previous annual reports

Annual Report 2021/22

Our 2021/22 Annual Report and Accounts gives our customers and stakeholders an insight into how we conduct our business, and our performance.

Annual Report 2020/21

Our 2020/21 Annual Report and Accounts gives our customers and stakeholders an insight into how we conduct our business, and our performance.

Annual Report 2019/20

Our 2019/20 Annual Report was our first annual report since the ESO became a legally sperate business within the National Grid Group in April 2019.

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National Grid ESO - annual report and accounts - Canary wharf at night

Our long term business plan

Our RIIO-2 Business Plan is founded on a vision for the next decade and beyond, focusing on how we must evolve to meet the challenges of the changing energy landscape and maximise benefits for consumers.

More from ESO

How we're performing

We monitor our performance and produce reports to show the progress we’ve made on a monthly, quarterly, half-yearly, and yearly basis. See how we're doing.

Future Energy Scenarios

Our Future Energy Scenarios (FES) details a range of different, credible ways to decarbonise our energy system as we strive towards the 2050 target. Find out more.