How much does a Wi-Fi router cost per month in Tennessee?

About $1.03 a month, assuming 10 W, 24 hours a day, 365 days a year at 14.07¢/kWh.

How many kilowatt-hours does a Wi-Fi router use?

Roughly 88 kWh a year under these assumptions, or 0.01 kWh for every hour it runs.

Is that expensive compared with other states?

Tennessee has the 5th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $16.07 a year.

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Cost to run a Wi-Fi router in Tennessee (June 2026 rates)

At 14.07¢ per kilowatt-hour — Tennessee's average residential price in June 2026 — running a Wi-Fi router costs $12.33 a year. That is 23% less than the national average of $16.07. Tennessee's residential rate is up 1.8% from June 2025, which moves this appliance from $12.11 to $12.33 a year.

Per hour: 0.1¢
Per day of use: 3.4¢
Per month: $1.03
Per year: $12.33

Assumption: 10 W, 24 hours a day, 365 days a year — 88 kWh a year. Router plus modem. Mesh systems multiply this by the number of nodes. Use the calculator to swap in the numbers from your own model.

How Tennessee compares

Tennessee pays 14.07¢/kWh, the 5th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $3.74 less a year than the typical U.S. household pays for the same use. Running the same Wi-Fi router costs $11.48 a year in Nevada and $46.18 in Hawaii, so where you live changes this bill by $34.70 a year.

State	Rate	Per month	Per year
Utah	13.37¢	97.6¢	$11.71
Louisiana	13.49¢	98.5¢	$11.82
Tennessee	14.07¢	$1.03	$12.33
North Dakota	14.12¢	$1.03	$12.37
Arkansas	14.12¢	$1.03	$12.37

States ranked by average residential price, cheapest first. See all 51 states for a Wi-Fi router.

What else costs about the same in Tennessee

Ceiling fan$12.16 a year in TN Hair dryer$13.30 a year in TN Slow cooker$13.51 a year in TN

Cutting the number down

Small and always-on is the pattern worth understanding: 10 W around the clock is 88 kWh a year, more than a microwave.
Mesh nodes each carry their own around-the-clock draw, so an extra node is an extra annual line item.

Questions

How much does a Wi-Fi router cost per month in Tennessee?: About $1.03 a month, assuming 10 W, 24 hours a day, 365 days a year at 14.07¢/kWh.
How many kilowatt-hours does a Wi-Fi router use?: Roughly 88 kWh a year under these assumptions, or 0.01 kWh for every hour it runs.
Is that expensive compared with other states?: Tennessee has the 5th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $16.07 a year.