As much as we Americans love our gas fireplaces, gas ranges and gas grills, we need to recognize that the move to an all-electric home, with the electricity being generated using minimal fossil fuels, is central to the goal of mitigating the effects of climate change.
And it can be a good future, especially if you’re able to generate all the electricity that your home and cars use.
That’s the future Rita and I have created for ourselves. We have 10 kW of solar panels on our Golden home, enough to heat and cool our home and charge our two electric cars. Our forced air furnace only burns gas when the outside temp dips below freezing. Otherwise, a heat pump provides all the heat we need. And recently we replaced our gas water heater with a hybrid water heater that heats all the water we need using its built-in heat pump. It has a standard electric heater coil in case we need faster recovery. (We never have needed faster recovery.)
Yes, we still have a gas cooktop and gas fireplace, and our BBQ grill is plumbed with gas. I can picture us moving to an induction electric cooktop, electric fireplace and electric grill, but for now we comfort ourselves with the knowledge that we have drastically reduced our carbon footprint and our monthly energy bills with the use of heat pumps for heating, cooling and water heating, as well as by driving EVs.
A December article on axios.com reported that some progressive jurisdictions are now banning gas hookups in new residential and commercial construction. According the article, 40 California municipalities, starting with Berkeley in 2019, have banned the installation of natural gas service in new construction.
The most common argument against this anti-natural gas trend relates to the cost of electric heating vs. gas heating, but the people who make that argument are probably thinking of conventional resistance heating, such as baseboard electric heating.
Resistance heating is similar to your kitchen toaster, sending electricity to a coil causing it to generate heat. There is a more efficient way to heat, however, which is to use a heat pump. A heat pump moves heat instead of generating heat, and the cost is as little at one quarter that of resistance heating for the same BTU (heat) output. Here’s a article comparing the two kinds of electric heating.
Moreover, a heat pump can provide both heating and cooling, merely by reversing the direction in which it moves heat, replacing both the gas furnace and electric air conditioning unit which most of us have in our homes.
Another argument against increased electrification is that electricity is itself created by the burning of coal and natural gas. The current fuel mix of Xcel Energy in Colorado is 36% natural gas, 32.5% coal, and the rest renewable energy (mostly wind). The company’s goal is 55% renewable by 2026 and 100% “carbon-free” by 2050, so it makes sense to start now replacing gas appliances with high efficiency electric ones such as heat pumps.
Keep in mind, too, that we can generate our own electricity at home and on our office buildings, taking advantage of “net metering,” paying only to be connected to the electric grid. With net metering, Xcel’s grid functions like a battery, taking excess electricity from our solar installations during the day and delivering it back to us when the sun goes away — or when our solar panels are covered with snow!
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