How Electrification Changes Your Electric Bill

Electrification moves energy use from one bill to another. Your electric bill goes up; your gas bill goes down or disappears. Whether the total improves depends on a handful of factors — and one of them gets left out of almost every estimate.

What happens to the bills

The electric bill going up is not a failure — it is the point, since the heating moved onto it. Judge the change on total energy cost including the eliminated gas fixed charge, and watch strip heat, which is what turns a good outcome into a bad one.

How much is the gas fixed charge costing you?

Utility gas bills have two parts:

• Usage — what you actually burned
• A fixed monthly service charge — for having the connection at all

That fixed charge doesn't scale with usage. A home that converted its furnace, water heater and range but kept a gas dryer pays the full monthly charge to run one appliance a few times a week.

This has two consequences:

Partial electrification underperforms expectations. You cut usage substantially but keep paying the fixed cost, so the bill doesn't fall as much as the energy math predicted.

The last conversion is worth more than it looks. Converting the final gas appliance eliminates a fixed annual cost — often more than the appliance's own energy use was costing. That's why the sequencing advice usually ends with "finish the job."

Find the fixed charge on your own gas bill and multiply by twelve. That's the annual prize for going fully electric, before any usage savings. See all-electric home explained and removing your gas meter.

Will electrification raise or lower my total bill?

1. The rate ratio. Not the absolute price of electricity, but the ratio of electricity price to gas price in your area. A heat pump's efficiency multiple has to overcome that ratio. Where electricity is moderately priced, it comfortably does; where electricity is very expensive and gas very cheap, it may not. Check electricity rates by state and utility rates.

2. Equipment efficiency. A heat pump delivering several units of heat per unit of electricity is a completely different proposition from electric resistance heat at roughly one for one. This is the single biggest lever, and it's why the equipment choice matters more than the fuel choice. See heat pump vs electric resistance heat.

3. Your climate. Heating-dominated climates move more energy, so the effect — good or bad — is larger. Mild climates see smaller changes in both directions.

4. Your envelope. Insulation and air sealing reduce the heating load directly, which reduces both the equipment size and the bill. See home energy audit before electrifying.

5. What you're replacing. Converting propane, heating oil or electric resistance heat is a much stronger case than converting natural gas, because those fuels cost more per unit of delivered heat.

The seasonal shape changes

Worth expecting, because it surprises people.

Before: a gas bill that spikes in winter, an electric bill that spikes in summer with air conditioning.

After: one electric bill that has both peaks — winter heating and summer cooling — with the winter peak often the larger of the two in cold climates.

The annual total may be lower while individual winter bills are higher than any electric bill you've seen before. That's a normal and expected result, not a sign something is wrong. Budget for it, especially the first winter.

Some utilities offer budget billing or levelized payment plans that smooth this out. Worth asking about.

Which electricity rate suits an all-electric home?

Once you're a larger electricity customer, the rate you're on matters more.

Time-of-use (TOU) rates charge different prices by time of day. These reward shifting flexible loads to off-peak hours.

• Suits well: EV charging, water heating (a heat pump water heater with a schedule), dishwashers and laundry
• Suits poorly: space heating, because heating demand peaks when it's coldest, which often coincides with system peak

So a TOU rate can be a clear win for a home with an EV and a heat pump water heater, and a marginal one for a home whose new load is mostly heating. Compare your actual pattern against the rate's peak windows before switching.

Electrification or heat pump rates. Some utilities offer rates specifically for homes with heat pumps or EVs. These are often the best option available if you qualify — ask your utility directly.

Demand charges. Uncommon residentially but spreading in some territories. These bill partly on your highest power draw, which makes simultaneous large loads expensive and makes load management valuable for reasons beyond capacity. See load management for home electrification.

How do you estimate your bill after electrifying?

A workable method:

1. Pull twelve months of both bills. Note gas usage by month and the fixed charge.
2. Split gas usage into heating (the seasonal part) and baseline (the flat summer part — water heating, cooking, drying).
3. Convert each piece to the electricity it would take, accounting for the efficiency of the replacement equipment. A heat pump's multiple is doing the work here.
4. Multiply by your electricity rate — and check whether the added usage pushes you into a higher tier if your utility uses tiered rates.
5. Subtract the gas usage and the fixed charge you'll stop paying.

The electricity bill estimator and electricity cost calculator handle the arithmetic. For heating specifically, the heat pump payback calculator and heat pump cost by state are more targeted, and average electric bills gives you a sanity check against comparable homes.

Two cautions on estimates:

• Tiered rates mean added usage may be priced at a higher marginal rate than your current average. Use the marginal rate, not the average.
• Efficiency ratings are lab conditions. Real-world performance varies with climate, sizing and installation quality.

Things that reduce the bill regardless

Independent of fuel choice:

• Envelope work — insulation and air sealing cut heating and cooling directly
• Right-sizing equipment — oversized systems cycle badly and cost more. See oversized HVAC problems.
• Thermostat strategy — heat pumps generally prefer steady setpoints to deep setbacks. See heat pump thermostat settings.
• Water heater temperature set sensibly — see water heater temperature setting
• Shifting flexible loads off peak where a TOU rate applies

The bottom line

Your electric bill rises and your gas bill falls; the total depends on your local rate ratio, your equipment's efficiency, your climate and your envelope. Expect a new winter peak on the electric bill even if the annual total improves. And don't leave the fixed gas service charge out of the math — it's the cost that only disappears when the last gas appliance does, which makes finishing the conversion worth more than it appears.

Estimate the change with the electricity bill estimator, model rates with the electricity cost calculator, or read why electrify your home.