Octopus Agile

RavingMad · 17 June at 8:52PM

Anyone know why it's no longer the early hours of the morning when the rates are the cheapest? I used to run the dw overnight but now it's cheaper to run after lunch.

QrizB · 17 June at 9:09PM

Anyone know why it's no longer the early hours of the morning when the rates are the cheapest?

Likely to be due to solar PV producing electricity during these long sunny June days (nevermind that ots been overcast here all day).

Here's the chart from Electric Insights for the Sunday just gone, for example:

Screenshot 2026-06-17 at 21-05-09 Drax Electric Insights.png

The big yellow hump in the middle of the day is solar PV.
(Other bands - nuclear green, biomass amber, imports (mostly French nuclear) red, wind blue, gas purple. The two thin bands that come and go between imports and wind is hydroelectric & pumped storage.)

Newbie_John · 18 June at 10:46AM

Its interesting that majority of ToU tarrifs offer cheaper hours at night - E7, EV, HeatPumpHeat pumps etc.

The only ones that offer cheaper "solar" time are HeatPump (although this has much lower use of anybiany in summer), or very variable like Agile, FreePhase.

There's a really clear switch summer, winter between cheap periods so I wonder if anyone will bring some sort of season variable E7 like tarrif - 0-7am winter, 9-16 summer 😅 but I guess probbably not, as it's a good time for providers to earn some money.. people pay decent premium for 10-16 in summer.

Pat38493 · 19 June at 12:22PM

https://forums.moneysavingexpert.com/discussion/comment/82038830#Comment_82038830

This is pretty normal in the summer - in the summer on Agile there is usually 2 cheap periods - one overnight and one in the afternoon and often the afternoon one is cheapest. In Winter not so much.