I can’t open the link you posted above Kezo.
Try this 🙂
I’ll be honest, and i’d assume some others disagree, but seeing your consumption – it doesn’t really matter where you go. You might save £3, or pay £3 more somewhere else, but it’s £3. Same with petrol, i cringe everytime i hear someone say “i drove 15 miles extra to the station where petrol was 2 pence cheaper” – yeah great, at 30 miles, you very likely burned the savings anyway (i think i calculated that with the old Ateca, a drive to Bridgend and back – around 25ish miles – would’ve cost us somewhere around £2.50-£3) – not including time spent.
When I initially looked at changing(EDF I think) the peak rate was fixed at 24p, with a similar offpeak rate, which would save around £6 a month however, the deciding factor or rather I was out numbered, was the Octoplus points with pink goodies, which happens to be my daughters favourite colour and my mrs has got the knack of getting 800 points every time she spins the wheel😕
However, what you say makes alot of common sense, especially for petrol.