If you have a standard electric hot water tank, you’d be surprised how much that adds to the bill. There are electric tankless water heaters now, or gas is probably cheaper overall if you have a line to your house.
We’ve got natural gas, thank God.
Tankless doesn’t work that well up here because in the winter time our incoming water is usually under 40F and most tankless heaters only provide a 70F heat rise, otherwise I’d have installed one a long time ago.
The feasibility of those has pretty much been debunked, evidenced by their hardly ever being advertised in my large metro area anymore.
I've even had plumbers who sell them steer me away from them. And they ARE expensive.