Why Is My Electric Bill So High in Winter?

By Cedrick Reese, ElectricityUsageCalculator.com

Why is my electric bill so high in winter? Mostly heat. See what EIA expects homes to pay this winter and how to lower yours.

About 42% of U.S. households heat mainly with electricity, and EIA expects those homes to spend an average of $1,196 on electricity from November 2026 through March 2027, with January alone around $270.

This page covers the winter-specific causes. If you haven't yet worked out whether your bill rose because of usage or price, start with the main guide on why your electric bill is so high, then come back here.

What EIA expects this winter

Each October, the U.S. Energy Information Administration publishes a Winter Fuels Outlook. The October 2026 edition expects homes that heat mainly with electricity to spend 4% more than last winter: about 3% from higher prices and the rest from slightly higher consumption. Here's EIA's monthly forecast for the U.S. average electric-heat household:

EIA expected monthly electricity spending for electric-heat households, winter 2026-27
Month	Expected electricity spending
November	$213
December	$253
January	$270
February	$230
March	$230
Winter total	$1,196

Regional totals vary: EIA forecasts $1,637 in the Northeast, $1,380 in the Midwest, $1,151 in the West, and $1,079 in the South. The West has the biggest expected jump, about 9%, mainly because EIA's forecast assumes a colder winter there than last year. Next to the national average of about $142 a month in 2024 across all homes and all seasons, a January bill in an electrically heated house looks much less surprising.

Your type of electric heat matters most

"Electric heat" covers two very different technologies, and which one you have changes the size of your winter bill more than almost anything else.

Electric resistance heat includes baseboard heaters, wall heaters, electric furnaces, and most space heaters. The Department of Energy describes it as 100% efficient in one narrow sense: every unit of electricity becomes heat. Resistance heat also has a ceiling: it can never deliver more heat than the electricity you pay for.

Heat pumps move heat from outdoors to indoors instead of making it. DOE says a properly installed air-source heat pump can deliver up to three times more heat energy than the electricity it uses, and that heat pumps can easily cut electricity use by 50% compared with electric resistance heating.

So two houses on the same street can see very different winter bills. If your home has baseboard heat or an electric furnace, a winter bill several times your spring bill can be completely normal. If you have a heat pump and your bill looks like a baseboard bill, read the next section. Our guide to how much electricity a heat pump uses has typical figures by size.

Heat pump backup heat

Many heat pumps have backup electric resistance heat, which thermostats usually label "aux" or "emergency" heat. Aux heat runs alongside the heat pump to help it keep up; emergency heat runs on its own when the heat pump is switched off. Backup heat helps on very cold days and during defrost, when the outdoor coil briefly reverses to melt frost. DOE recommends choosing a heat pump with demand-defrost control, because fewer defrost cycles mean less supplementary energy use.

Backup heat is resistance heat, so when it runs, you pay resistance-heat prices. A few things can make it run more than it should:

Deep thermostat setbacks. DOE says that when a heat pump is heating, setting back its thermostat can make the unit operate inefficiently, and that thermostats made for heat pumps use special algorithms to limit backup electric resistance heat. Use one of those before you program deep setbacks.
Emergency heat left on. If someone switched the thermostat to "EM heat" during a cold snap and never switched it back, the house is running on resistance heat alone.
A heat pump that needs service. Low refrigerant, a dirty filter, or a failed outdoor fan makes the system lean on backup heat. If the "aux" light is on for hours on mild days, call a technician.

Space heaters add up fast

A space heater feels small, but most models draw close to 1,500 watts on high. That's 1.5 kWh every hour. At EIA's forecast winter average of 18.23 cents per kWh (our space heater page uses the 2024 annual average of about 16.5 cents, so its totals run lower):

Space heater running cost by hours per day at 18.23 cents per kWh
Hours per day on high	kWh per month (30 days)	Cost per month
2 hours	90	$16.41
4 hours	180	$32.81
8 hours	360	$65.63
12 hours	540	$98.44

Two heaters running overnight in two bedrooms can add more than $100 a month by themselves. Used well, though, a space heater can save money: DOE notes zone heating can save more than 20% compared with heating the whole house. The savings only happen if you turn the main thermostat down while you heat one room. Run the numbers for your own heater in the space heater cost calculator.

The rest of the winter bump

Heat is the big one, but winter nudges several other loads up at the same time. In colder climates the water coming into the house is colder in winter, so a water heater has more work to do to reach the same temperature; see water heater usage.

Longer nights mean lights stay on more, which is small with LEDs but noticeable with older bulbs. School breaks, holidays, and guests add cooking, laundry, and screen time. Holiday light displays, inflatables, and heated blankets add load too; an electric blanket is cheap to run, but heating the whole bedroom to the same comfort costs far more.

Billing timing matters as well. A December bill often includes November usage, so the cold month's cost shows up a month late, right on top of holiday spending.

How to lower your electric bill in winter

Compare January with last January, not with October. If kWh per day is close to last year, your bill is following the weather. If it's far higher, look for a fault or a new load.
Turn the thermostat back at night or while you're out. The Department of Energy says you can save as much as 10% a year on heating and cooling by turning the thermostat back 7 to 10 degrees for 8 hours a day from its normal setting. With a heat pump, use a thermostat designed for heat pumps; DOE notes these use algorithms to limit backup resistance heat.
Check the "aux" and "EM heat" indicators on a heat pump thermostat. Long runs on mild days mean the system needs service.
Heat the room, not the house, only if you lower the main thermostat at the same time.
Seal the obvious drafts. Weatherstripping on exterior doors and attic hatches is cheap, and every bit of heat that stays inside is heat you don't buy twice.
Ask about levelized billing. It won't lower the yearly total, but it spreads January across the year so one bill doesn't wreck a budget.

Winter also makes the always-on part of your bill easier to ignore. If you want to find the load that runs whether it's 10 degrees or 70, see phantom load and standby power.

The winter spending table on this page is taken directly from EIA's October 2026 Winter Fuels Outlook, and the space heater table is our own arithmetic: 1.5 kW times hours times 30 days, priced at that same outlook's 18.23 cent forecast. Heating technology comparisons come from the Department of Energy's Energy Saver pages. Cedrick Reese wrote this winter guide and will replace the forecast figures with actual results once EIA reports on this winter, then again when the next outlook comes out. Prices last checked October 2026.

Sources

Forecast figures are national and regional averages for homes that heat mainly with electricity. Your bill depends on your climate, your home, your heating equipment, and your local rate.