Houses with gas cost MORE than all electric.
Long time members will know me as the guy with an whole house electric monitor. With 10,000 reads per second 24/7 my Sense monitor,
Sense: Track energy use in real time to make your home more energy efficient., identified appliances usage and I did this for three years. This included an all electric home that I rented giving me insight on how different people use electricity.
First, the things that you think use a ton of kilowatts do not. Second the monthly availability of service fees for gas more than cancel any savings with gas. I have a gas home now so I have compared
The big users in the electric over gas are water heater, dryer and hvac heating.
Let's dispense with the water heater, a tanked water heater costs 10.00 to 14.00 a month to operate. A dryer is 4.50 to 8.00.
Heat is harder to assign a cost. But know this emergency or resistance heat, rarely used, is 94-96% efficient. Heat pump heat (the one that is used) is approximately 250% efficient.
Say what!!! The efficiency standard was established for resistance heat. Heat pumps are just that good at all temps when outdoors is 40 degrees or greater.
Now the exceptions, if you heat your pool with electric resistance heat (not a pool heat pump) then gas is better.
Notes: No, tankless water heaters are not great cost savers with no tank of super insulated water to keep warm. How do I know? I used a remote water heater switch to measure the cost of keeping the heater on and compared the holding costs of keeping a water heater on 24/7 vice on 12, off 12. In order to eliminate bias in water usage I conducted this test while the home was rented, the tenants were unaware of the test. I even had a water heater -water usage (gallons)- to measure hot water usage. I also kept a tank of water hot in a vacant home for a month and measured the cost of keeping water hot I.e. standby costs. You use far less hot water than you think.
If anyone has conducted more analysis than I have I would love to hear about it.