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EV Evidence

Regulation · GB

Lowest-forecast 60-minute charging window

For the 2026-08-14 E2 forecast snapshot, the rank-one continuous 60-minute window is 12:00–13:00 Europe/London. Its mean forecast is 83 gCO2/kWh, with both contributing half-hour forecasts also 83 gCO2/kWh. This is a one-day GB forecast result, not a recurring recommendation or evidence of your tariff, charging power or realised emissions.

National Energy System Operator and partners: Carbon Intensity API national forecast

Reviewed

Key facts and evidence

For Great Britain, reviewed on 2026-08-13, the 2026-08-14 Europe/London snapshot ranks 12:00–13:00 as its lowest-mean continuous 60-minute forecast window. The mean, minimum and maximum are each 83 gCO2/kWh across two half-hour forecast slots; this result belongs only to that single-day forecast and is not a standing schedule.

National Energy System Operator and partners: Carbon Intensity API national forecast

Read the rank-one 60-minute GB carbon-intensity forecast window for the 2026-08-14 Europe/London snapshot without generalising it.

Rank-one forecast window

E2 formed this 60-minute result from two continuous half-hour slots with non-null forecasts, ranked by unrounded mean and then by start time. The local display is 12:00–13:00 Europe/London.

Decision limit

The interval describes forecast system intensity for one GB local day. It does not establish a supplier price window, the energy an EV will accept, or the carbon intensity actually realised.

What to do next

Keep the duration, local date, Europe/London timezone and forecast label attached whenever this interval is displayed.

Immediate action: Recheck a current forecast and the separate tariff before relying on any charging-time decision.

  • Stop using this interval after the 2026-08-14 snapshot or for any claim about actual emissions.

Professional hand-off

  • Refer equipment-control questions to the exact manufacturer instructions or support channel.

Questions this record can answer

What does the sourced evidence say about rank-one forecast window?

E2 formed this 60-minute result from two continuous half-hour slots with non-null forecasts, ranked by unrounded mean and then by start time. The local display is 12:00–13:00 Europe/London.

What does the sourced evidence say about decision limit?

The interval describes forecast system intensity for one GB local day. It does not establish a supplier price window, the energy an EV will accept, or the carbon intensity actually realised.

Sources