GridCarbon

In 2009 a carbon intensity of 336gCO2/kWh was worthy of colouring the map green. It would now be coloured red.

When GridCarbon launched in 2009 coal generation regularly reached 25GW at peak times.

Farewell Ratcliffe-on-Soar.

@johnoft @NationalGridESO @myGridGB Some problem with data from ELEXON.

@NationalGridESO @GridCarbon @myGridGB Anyone know why wind generation this afternoon seems to be a lot lower than forecast?

Android and iOS updates to support the new Viking Link interconnector with Denmark are rolling out this week.

@GavinJBeattie @Mark06550489 Not yet. Should be an update in a week or so to include it.

@GridCarbon @Mark06550489 Has contribution from Viking Link been included?

@GridCarbon I notice that there is a large difference between what GridCarbon reports for gCo2/kWh compared to the National Grid ESO. For example, right now, Gridcarbon showing 74 but ESO showing 42. Why the difference?

@stevefry @JonathanWaxman1 See Staffell, 2017 for the full discussion. This starts from the carbon intensity of burning wood and tries to put a value on the subsequent reduction due to regrowth of the source. sciencedirect.com/science/articl…

48g !!!! 🙌

@VisctFishpond The full list is here - bmreports.com/bmrs/?q=forege…

@VisctFishpond They are hard to track down but seem to be things like battery storage sites and sometimes waste-to-energy sites. They are all metered and registered as balancing mechanism units. assets.elexon.co.uk/wp-content/upl…

@quasirob @davidrvetter The values are described in this paper - cs.ox.ac.uk/people/alex.ro…

@davidrvetter @GridCarbon What level of carbon intensity do we assign to foreign sourced electricity?

At 3.15pm today, wind and solar were providing more than 50% of the UK grid's electricity, with nuclear at just under 19%, delivering an overall carbon intensity of 84g CO2/kilowatt hour. For reference, the average grid carbon intensity for 2022 was 257g CO2/kWh. @GridCarbon

@wsvine @ukedgemk ELEXON is back up.

@wsvine @ukedgemk You probably have the most up to date version now, but the ELEXON site went down for maintenance today around 18:00. Should be back up later today.

@GridCarbon hi, data not coming through - any issue your end?

Yesterday's solar peak of 9168 MW was the highest since April 2021. Still behind the all-time peak of 9872 MW on 24th June 2020.

@GoingElectricUK @NationalGridESO They all use slightly different data sources and baseline carbon intensity values for different fuel sources. Our methodology is described here. cs.ox.ac.uk/people/alex.ro…

Why do the apps from @NationalGridESO & @GridCarbon give different figures for current GB Grid carbon intensity?

@rarts Yep, we recalculate the carbon intensity using the 'official' 30-minute fuel mix values that are published at the end of each day. The app uses 5-minute data with extrapolated solar data (the solar API can have a lag of up to an hour) so the numbers differ a little sometimes.

@GridCarbon At one point I saw the android app report 44 gCO2/kWh

Yesterday matched the lowest 2023 carbon intensity value of 46 gCO2/kWh. Just higher than the all-time record in 2021 of 43 gCO2/kWh.

@okSettleDown @davidrvetter Yes.

At 2.40pm today, wind and solar are producing 55% of the UK's electricity, with nuclear at almost 16%. Fossil gas is generating just 8.3%, contributing to a carbon intensity of 59 grams of CO2 per kilowatt hour. Courtesy of @GridCarbon.