Compare gas and electric. It's possible to compare gas and electric prices with MoneySuperMarket. When you get both types of energy from the same supplier, it's called a dual fuel tariff – and you can see this option when you run a gas and electricity comparison online.We search the latest energy deals, so you don’t have to. When there’s a better offer, Bill Manager will tell you when to switch so you’ll never have to overpay again. Download the MoneySuperMarket app to find out more.is a free, independent price comparison service that can help you compare energy prices and switch your gas and electricity supplier to save on your household bills.