How does the energy unit price work out at the moment, are you able to switch enough usage to the cheap night period to make it cheaper on average than the SVR cap?
Edit:
Had a look and I'm finding it hard to see why the agile tariff makes sense at the moment. Even the cheap times look more expensive than the SVR?
This page shows today's and historical export pricing for Octopus Agile East Midlands. Switch to Octopus Energy today and get £50 of free credit.
www.energy-stats.uk
Traditionally agile was good because it was able to track cheaper wholesale costs and I think it has some benefits when you have solar panels.
However the reason I switched to it, is its not a basic tracker, it has a upper limit, and that limit is lower than all of the fixed that Octopus have been offering, way lower. Having a 35p unit rate in October will be a good deal, in addition its SC is less than half the SC of SVR. The fact the unit rate can go down and it will occasionally but not often is just a bonus at this point.
Gas tracker is similar but not as good, as the SC is still the same as all other tariffs, but the 11p cap rate will be very likely below the SVR rate on October. Also up until the recent gas cut off news from Russia it was actually regularly dropping every week significantly below the cap, but sadly those days might be gone.
Bear in mind the agile you can sign up to now is not as good as the one I am on, they replaced the tariff with it capped at 55p instead of 35p and also bumped up the SC a lot. Gas tracker got replaced with a new one that has 16p cap instead of 11p cap.
I will be paying more per unit than the current SVR, however will save after the next SVR, so basically I decided to take a hit for 2 months, but then benefit for the 9-10 months after. For electric the cheaper agile SC is offsetting the higher unit price. So I am really only paying more for gas on these 2 months.
That website you linked to, looks like he is only showing the new tariff now.
Here is a pic from my graph on octopus website.