How much does a smart speaker cost per month in North Carolina?

About 33.2¢ a month, assuming 3 W, 24 hours a day, 365 days a year at 15.16¢/kWh.

How many kilowatt-hours does a smart speaker use?

Roughly 26 kWh a year under these assumptions, or 0.00 kWh for every hour it runs.

Is that expensive compared with other states?

North Carolina has the 16th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $4.81 a year.

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Cost to run a smart speaker in North Carolina (July 2026 rates)

At 15.16¢ per kilowatt-hour — North Carolina's average residential price in July 2026 — running a smart speaker costs $3.98 a year. That is 17% less than the national average of $4.81. North Carolina's residential rate is up 13.4% from July 2025, which moves this appliance from $3.51 to $3.98 a year.

Per hour: under 0.1¢
Per day of use: 1.1¢
Per month: 33.2¢
Per year: $3.98

Assumption: 3 W, 24 hours a day, 365 days a year — 26 kWh a year. Idle listening. Playing music at volume draws several times more, but only while it plays. Use the calculator to swap in the numbers from your own model.

How North Carolina compares

North Carolina pays 15.16¢/kWh, the 16th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to 82.8¢ less a year than the typical U.S. household pays for the same use. Running the same smart speaker costs $3.34 a year in Louisiana and $12.61 in Hawaii, so where you live changes this bill by $9.27 a year.

State	Rate	Per month	Per year
Montana	14.99¢	32.8¢	$3.94
Florida	15.03¢	32.9¢	$3.95
North Carolina	15.16¢	33.2¢	$3.98
Kansas	15.27¢	33.4¢	$4.01
South Dakota	15.37¢	33.7¢	$4.04

States ranked by average residential price, cheapest first. See all 51 states for a smart speaker.

What else costs about the same in North Carolina

Toaster$5.31 a year in NC Vacuum cleaner$5.46 a year in NC Clothes iron$2.50 a year in NC

Cutting the number down

The interesting number is the idle draw, because that is the one that runs 8,760 hours a year.

Questions

How much does a smart speaker cost per month in North Carolina?: About 33.2¢ a month, assuming 3 W, 24 hours a day, 365 days a year at 15.16¢/kWh.
How many kilowatt-hours does a smart speaker use?: Roughly 26 kWh a year under these assumptions, or 0.00 kWh for every hour it runs.
Is that expensive compared with other states?: North Carolina has the 16th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $4.81 a year.