Well, we have had a month of Intelligent GO, which is roughly 25p in the day and 7p overnight; previously we were on Flexible Octopus at about 24p all day/night.
This time last year our February electricity bill was £69, and that was without having an EV to charge. This year, our electricity in February was £49. That difference seems insane to me so I compared some other months as well. January 2025 was £103, with an EV but on the flex tariff. January 2024 was £93. December 2024 was £73 (with an EV from mid-month, but hardly used because of Christmas), December 2023 was £89.
I think we’re actually saving a significant bit from having one of our nocturnal offspring grow up and move out late last year, but despite using 98kWh charging the car in February (about £7 as we do it exclusively on the 7p overnight rate) it looks like the ability to move just a few regular things to overnight use is making a big cumulative difference (refilling the kitchen hot water boiler, running the dishwasher) - that plus I guess we have quite a lot of stuff that just runs and drains power 24x7
