Find your cheapest energy.
Official Octopus Agile rates alongside experimental next-day and two-day forecasts.
East Midlands (B) · 2024 Agile tariff. Other regions use their own officially published prices and separate experimental forecasts.
Published cycle: previous evening 11pm to 11pm on the selected day. Daily figures may differ from the calendar-day totals shown in other apps.
Compare the original weather-adjusted D+2 experiment with its frozen historical control on the correct calendar date. Neither model is proven more accurate.
Half-hour price outlook
Select a bar for the individual half-hour price. Scroll horizontally on mobile.
Official prices take priority; any experimental forecasts are labelled.
⚡ Cheapest time to run appliances
Forecast recommendations are experimental; official rates take priority.
Estimate your running cost
Useful for timing a heater, washer or dishwasher. Adjust the power to match your appliance.
Weather & grid signals
Research feeds · used only by experimental V0.5 shadowEmbedded wind/solar covers distribution-connected generation, not the entire UK system. Weather observations are forecasts captured at the stated time.
Forecast laboratory
We preserve each prediction before official prices become available, then measure the error without rewriting history.
V0.5 shadow experiment · weekday + weather + grid
Waiting for our first archived V0.5 prepublication forecast. The normal price chart still uses our frozen V0.4 predictions.
Independent Day +2 weather outlook · V0.6 experiment
No independent weather-adjusted forecast has been archived for the selected date yet. The historical control remains available.
Historical accuracy · verified results only
Waiting for officially scored forecasts.
Lower error is better. Scores are shown only once every official tariff period for that delivery date is available.