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You're on a time-of-use tariff with two rate periods. The key feature is that your import and export rates always mirror each other — so when it's expensive to buy electricity, it's also most profitable to sell it.

The daily strategy: Your battery charges overnight at the cheaper off-peak rate. Then Octopus automatically discharges it to the grid between 4–7pm when the rate is at its highest. This "buy cheap, sell peak" cycle is called energy arbitrage — it earns you money every single day regardless of how sunny it is.

About the accuracy of these figures: To calculate exactly how much you've earned at peak vs off-peak rates, we need to know precisely when each kWh was exported during the day. Initially figures are estimated using a seasonal model. In the background, the dashboard quietly downloads the detailed half-hourly data for each day (~30 days per visit) and upgrades figures to accurate as it goes. The progress bar below shows how far along this is.