CO2 Data



Carbon Intensity API


National Grid ESO, in partnership with Environmental Defense Fund Europe, University of Oxford Department of Computer Science and WWF, have developed the world’s first Carbon Intensity forecast with a regional breakdown.

2-Day Carbon Intensity Forecast

Today

Values are the average, max, and min Carbon Intensity in gCO2/kWh for each day

National Data

The carbon intensity of electricity is a measure of how much CO2 emissions are produced per kilowatt hour of electricity consumed.

The ‘actual’ value (orange line) is the estimated carbon intensity from metered generation. The ‘forecast’ value (blue line) is our forecast. The carbon intensity of electricity is sensitive to small changes in carbon-intensive generation. Carbon intensity varies by hour, day, and season due to changes in electricity demand, low carbon generation (wind, solar, hydro, nuclear, biomass) and conventional generation.

Carbon Intensity Forecast (-24hrs to +48hrs)



Select a start date and end date in the boxes below in the format YYYY-MM-DD. Data is retrieved in UTC time and is returned as a CSV file. Only 30 days of data can be downloaded at a time. Data cannot be downloaded between years. Data is only available after 2017-09-26.

Start:

End:




Current GB Generation Mix


Examples

WWF have implemented the API into a re-usable widget that can help people plan their energy use, switching devices on when energy is green and off when it’s not.





Regional Data

National Grid ESO forecasts the carbon intensity and generation mix of electricity consumed across 14 geographical regions in Great Britain. The spatial and temporal characteristics of carbon intensity can be observed in the map below.

The boundaries are defined according to Distribution Network Operator (DNO) boundaries. Click on a region in the map below to see the current carbon intensity and generation mix for that region. Switch to the Country tab to see the same data for England, Scotland and Wales. Click the play button to see the forecast over the next 24 hours.

Click on interconnectors to see their names
Key: Very High High Moderate Low Very Low

Postcode Search new

Enter your postcode into the box below to find out the carbon intensity of your region.




# Region Forecast Carbon Intensity (gCO2/kWh) Index