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

About 34.1¢ a month, assuming 3 W, 24 hours a day, 365 days a year at 15.55¢/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?

South Carolina has the 21st cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $4.82 a year.

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Cost to run a smart speaker in South Carolina (June 2026 rates)

At 15.55¢ per kilowatt-hour — South Carolina's average residential price in June 2026 — running a smart speaker costs $4.09 a year. That is 15% less than the national average of $4.82. South Carolina's residential rate is up 5.1% from June 2025, which moves this appliance from $3.89 to $4.09 a year.

Per hour: under 0.1¢
Per day of use: 1.1¢
Per month: 34.1¢
Per year: $4.09

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 South Carolina compares

South Carolina pays 15.55¢/kWh, the 21st cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to 73.3¢ less a year than the typical U.S. household pays for the same use. Running the same smart speaker costs $3.45 a year in Nevada and $13.85 in Hawaii, so where you live changes this bill by $10.41 a year.

State	Rate	Per month	Per year
South Dakota	15.36¢	33.6¢	$4.04
West Virginia	15.45¢	33.8¢	$4.06
South Carolina	15.55¢	34.1¢	$4.09
Kansas	15.71¢	34.4¢	$4.13
Iowa	15.93¢	34.9¢	$4.19

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

What else costs about the same in South Carolina

Toaster$5.45 a year in SC Vacuum cleaner$5.60 a year in SC Clothes iron$2.57 a year in SC

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 South Carolina?: About 34.1¢ a month, assuming 3 W, 24 hours a day, 365 days a year at 15.55¢/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?: South Carolina has the 21st cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $4.82 a year.