You could hunt around seeking best prices separately for Gas & Elect
I've switched about 6 times in the last 10 years and always gone dual fuel which has always included a duel-fuel discount.
Never looked to see if individual pricing would better this.
My OVO 2 year locked in rate until Oct 2020 is:
Elec unit 11.39
Elec day 27.4
Gas unit 2.53
Gas day 27.4
Monthly cost is £97 based on annual usage of 4,997 Gas and 15,662 Elec
Did as you said and went and checked Octopus tariff
Worked out £120 per year MORE EXPENSIVE on the cheapest tariff -...