Jadnashua
Retired Defense Industry Engineer xxx
There's more to it than that! Electric is nearly 100% efficient. A gas WH can have a large range from 50-90% efficient. Standby losses are a little higher on gas. The gov labels should give you a good idea of the relative costs between same sized WH. Then, refactor for your local energy costs. The labels will say what numbers they used to come up with the cost.