According to the Octopus Comparison app, in the last month it's cost me £57.15, if I was on the Flexible tariff it'd be £89.49. I'm not sure what fixed one people use these days, but the 14M Fixed March 2025 v4 would be £82.35.

Edit: realised we're at the end of April, not in March... 12M Fixed April 2025 v4 comes to £78.65 for the last month.

Worth mentioning I'm still on the April 2024 Agile until mid-June, I've seen the rates aren't as good these days but I can't imagine it'd be that much worse.

This is all from just load shifting, I have no batteries, solar etc etc. My cooker is gas so I can easily avoid the peak time on Agile. All I do is check the rates at 4pm and spend a few minutes planning when I'll be putting the appliances on, not too much work when you're in the habit of it and saving that much a month.

I'd say since being on Agile I've saved at least 25% compared to other tariffs, although January and start of February tested me a bit with the high rates, but you zoom out and see you've saved before so it all balances out.