Energy Price Forecast EU / Great Britain
GB electricity prices ยท Public beta
Tomorrow's GB electricity prices, and the days after
Tomorrow's auction result and a forecast are not the same thing. The GB curves distinguish published day-ahead prices from the model's prediction, so you can see which hours are known and which remain uncertain.
Beta: new models and a growing live history. Forecasts are not guarantees.
England, Scotland and Wales only. Northern Ireland is not included.
Published prices versus the forecast
Published day-ahead values come from NESO's N2EX price series. The forecast is generated independently for future delivery hours. The comparison curve keeps its frozen prediction when actual prices become available.
The normal overview covers up to five days. This does not mean that five days of official auction prices are available: most of that horizon remains a forecast.
How to read p/kWh
10 p/kWh means GBP 0.10 per kilowatt-hour. A 40 kWh charge at that base price would cost GBP 4 before tariff charges and taxes.
These are wholesale prices, not an estimate of your final bill. Negative wholesale prices do not necessarily mean that your household tariff becomes negative.
What drives the model?
The GB model combines forecast weather, modelled wind and solar output, electricity demand, published generation and interconnector availability, and British gas-price inputs. Available capacity is not assumed to be actual generation or a guaranteed import flow.
The model is new in public operation. In particular, performance several days ahead is still being measured. Use it to compare possible time windows, not as a guaranteed price or savings promise.
History and missing values
The history compares live-issued predictions with later published day-ahead values. It will not contain 30 complete comparison days immediately after launch. Where NESO has not yet supplied an observation, no invented actual price is shown.