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Transforming the system
Driving towards a sustainable energy future with our final RIIO-2 business plan.

Welcome to National Grid ESO

We make sure that Great Britain has the essential energy it needs by making sure supply meets demand every second of every day. Find out more about what we do and how we keep the lights on for Great Britain.

Find out more

Power cut in your area?

Find out who to contact when there's a power cut

Data

Download our data

Find the latest Firm frequency Response data, BSUOS forecasts, and other daily demand and supply reports.

Download a code

Download code documents like the Grid Code and CUSC and see the latest modifications.

Connect to the grid

Find out about the connections process, roles and responsibilities and other useful resources to understand your connections offer.

Sky's the limit for our zero-carbon ambition

ESO Director Fintan Slye on a timely new series from Sky News featuring real time electricity generation from the ESO

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Electricity Explained - March snapshot

Ever wonder how much electricity is generated and used in Great Britain?

Each month, we look at how much of Great Britain's electricity generation came from sources such as wind, solar and biomass.

Find out what happened in March.

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ESO : Balancing the grid
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Beginning our first separate RIIO price control

It's been two years since the separation of the ESO, and today marks the start of our first ever legally separate price control

ESO : Electricity explained

Easter Monday sees record low carbon intensity for GB electricity

Great Britain’s electricity grid was the greenest it’s ever been at 1pm on Monday 5th April.

ESO : Balancing the grid
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NOA Voltage Pathfinder – Pennine tender

We've published a tender for Long Term Reactive Power Service contracts in the Pennine region. 

ESO : Electricity explained
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Introducing our Carbon Intensity app

Our Energy Intelligence Manager James Kelloway introduces our Carbon Intensity app, a free tool to empower you to make more conscious decisions about when to use electricity.

Keeping the lights on throughout coronavirus

As the world tackles coronavirus, we're working hard to make sure the lights stay on.

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Summer Outlook 2021

Our Summer Outlook report outlines Great Britain's projected electricity needs for the summer ahead

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Innovation Strategy 2021/22

We’re making digital transformation our top innovation priority this year as we progress towards a cleaner energy system

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Network Options Assessment (NOA)

The NOA provides our recommendations for which reinforcement projects and services should be developed to meet the future network requirements that have been set out in the ETYS.

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13 April 2021

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13 April 2021

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13 April 2021
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