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We move electricity safely, reliably and efficiently around Great Britain, all whilst creating a sustainable electricity system for the future. 

As the authority on energy data, we are committed to communicating our work and making our data accessible – whether that’s the latest generation mix or FFR report. 

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Daily ESO report

See our daily report to see our demand and generation in MW as well as a daily wind, solar and STOR forecast.

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Firm frequency response data (FFR)

Look up FFR post-tender reports and FFR market data.

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BSUOS

Download our BSUOS forecast data and actuals data.

Great Britain’s Electricity Explained Report

Every month, we share a snapshot of Great Britain’s electricity generation and use.

Find out about the month’s electricity generation and how much came from sources such as wind, solar and biomass.

You can also see the carbon intensity of the electricity we used.

Read the latest report

Need more data?

We are moving all our data to our National Grid ESO Data Portal.

You can find System Frequency data, Thermal Constraint Costs, and Firm Fast Reserve Post Tender Reports at our one-stop shop.

Visit the Data Portal
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