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How Much Does It Cost to Run a Wi-Fi Router in Tennessee?
The short answer
Running a Wi-Fi router around the clock in Tennessee costs about $1.00 a month ($0.03 a day), based on a typical 10W unit using 0.24 kWh a day.
That’s based on Tennessee’s average residential rate of 13.7¢/kWh (EIA, July 2026), 25% below the US average.
Source: U.S. EIA, July 2026 data · Updated
Wi-Fi Router cost by size and efficiency in Tennessee
| Model | kWh/month | Per day | Per month | Per year |
|---|---|---|---|---|
| Efficient (6W) | 4.4 | $0.02 | $0.60 | $7.21 |
| Typical (10W) | 7.3 | $0.03 | $1.00 | $12.01 |
| Older / large (20W) | 14.6 | $0.07 | $2.00 | $24.02 |
Tennessee vs other states
At typical use, a Wi-Fi router costs $12.01 a year in Tennessee — $30.04 less than in Hawaii and $0.87 more than in Louisiana.
Tennessee has the 5th-cheapest residential electricity of the 50 states and DC. Tennessee price per kWh · all states ranked
Electricity price trend in Tennessee
13.7¢/kWh in July 2026 — ▲ +3.8% from a year earlier.
How to lower the cost of running a Wi-Fi router
Routers, modems and mesh nodes run 24/7, so even a 10W device uses about 7 kWh a month. A modem plus router plus two mesh nodes can add up to 30–40W of constant load. It's a good example of how always-on devices quietly add to a bill.
- Combine modem and router into one device if your provider allows it.
- Use only as many mesh nodes as you need for coverage.
- Schedule Wi-Fi off overnight if no one needs it.
Questions
Frequently asked questions
How much does a Wi-Fi router cost to run per year in Tennessee?
A typical 10W Wi-Fi router uses about 87.6 kWh a year, which costs about $12.01 at Tennessee’s average rate of 13.7¢/kWh.
How many kWh does a Wi-Fi router use per month?
At running 24/7, a typical Wi-Fi router uses about 7.30 kWh a month. In Tennessee that costs $1.00.
Is it expensive to run a Wi-Fi router in Tennessee?
Tennessee has the 5th-cheapest residential electricity of the 50 states and DC at 13.7¢/kWh — one of the cheapest. Running a Wi-Fi router here costs about $12.01 a year at typical use, compared with $16.04 at the national average rate.
What is the electricity rate in Tennessee right now?
The average residential electricity rate in Tennessee was 13.7¢ per kWh in July 2026, according to the latest EIA data — up 3.8% from a year earlier.
Wi-Fi Router costs in nearby states
Other appliances in Tennessee
Cheapest and priciest states
Sources & method
- Electricity rates: U.S. Energy Information Administration, Electric Power Monthly — average residential retail price, July 2026 (latest available). Retrieved .
- CO₂: EIA State Electricity Profiles, 2024 emissions rate of in-state power generation.
- Default usage for Wi-Fi router: running 24/7. Typical power 10W.
- Formulas, duty cycles and limitations: methodology. Data download: open data (CC BY 4.0).