Security of Supply
How voltage reduction can ensure system stability
8 May 2026 - 4 minute read
Great Britain has one of the world’s most secure electricity systems and we work constantly in the…
OSR and Electricity Markets Roadmap
NESO has published this year’s Operability Strategy Report and Electricity Markets Roadmap, addressing system needs and propose market reforms for future challenges.
Energy Forecasting Strategy
The Energy Forecasting Strategy has been updated following consultation and will be reviewed regularly. Setting out the forecasting capability NESO needs to operate the GB transmission system from 2030 onwards.
Gas Supply Security Assessment
The Gas Supply Security Assessment is our analysis of future gas supply security, considering gas availability, reliability and deliverability to meet GB demand scenarios over five and ten years.
NESO's tRESP Plan
transitional Regional Energy Strategic Plan (tRESP) forms a key part of NESO’s new responsibilities as strategic energy planner for the whole of Great Britain.
Summer Outlook 2026
Our Summer Outlook report contains our view of the electricity system for the summer ahead and is designed to support the industry in its preparations for the period.
Additional tools added to Demand Flexibility Service
Our Demand Flexibility Service (DFS) is set to undergo a major shakeup following approval from Ofgem. For the first time ever, the new service design will enhance year-round participation by offering innovative incentives to both consumers and businesses.
Clearing the gridlock: connecting Great Britain
We’ve re-ordered and published the new connections delivery pipeline, ending years of gridlock by prioritising ready-to-go projects that can drive economic growth and deliver a secure energy system across GB.
Gas Options Advice (GOA)
Read our Gas Options Advice (GOA) document which evaluates investment proposals from National Gas Transmission (NGT) that will meet the gas network's capabilities in Great Britain. GOA aims to shape the future gas system by ensuring proposals meet system needs, offer value for money, protect the environment, maintain resilience, and benefit consumers.
Great Britain's Energy Statistics
Ever wonder how much energy is generated and used in Great Britain?
Our control room experts continue to balance supply and demand second by second and you can follow the mix live in the carbon intensity dashboard or download our carbon intensity app – available on Google Play Store and The App Store.
You can also see Great Britain's monthly energy generation and how much came from sources such as wind, solar and biomass in our monthly snapshot.
News
Keen to learn more about how we balance the grid? See our latest stories below.
About NESO
NESO is the National Energy System Operator for Great Britain. We move power around Great Britain to keep homes and businesses supplied with the energy they need 24/7, 365 days a year. This is the first time in Great Britain that one organisation will plan and operate the whole energy system.
Could you keep Great Britain's lights on?
To give you some small insight into our world at NESO, we’ve developed a game where you can attempt to balance the grid, keeping it stable while facing some of the challenges our control room operatives experience daily.
Power cut in your area?
Experiencing a power cut? Find out what to do and who to contact.
Join our digital engagement panel
We’re always looking for ways to improve your experience, and your input is vital in helping us focus on what’s important to you. By joining our digital engagement panel, you’ll have the opportunity to share your thoughts and ideas about our online services.