[downquark1]

Prior to the energy crisis it was generally the advice that the agile tariffs are only worth it if you can shift the majority of your usage to night or have an electric car.

To some extent this is easy, you can set your washing machine and dishwasher to come on at night but people of course actually want to live during the day.
There were people deliberately shifting their meals to late night to try and safe money.

So my advice is to think carefully about your usage.