How Much Does It Cost to Run a Cable or Fiber Modem in West Virginia? (2026)

A modem runs all day at 5 to 15 watts. Combined with a separate router the pair uses around 15 to 25 watts continuously, roughly 150 to 200 kWh a year.

A typical cable or fiber modem (8 W) costs $0.001 per hour, or about $0.89 per month at 24 hours a day in West Virginia. Cheap to run

Hours used per day
WattagePer hourPer dayPer monthPer year
Low 5 W$0.001$0.019$0.56$6.77
Typical 8 W$0.001$0.030$0.89$10.83
High 15 W$0.002$0.056$1.67$20.30

Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 24 h/day ≈ 70 kWh per year.

One day of a cable or fiber modem (0.19 kWh) is the same electricity as

Electricity per year at typical use, on a log scale: #26 of 95 appliances, from least to most.

In West Virginia, with electricity at 15.4¢ per kWh (source: EIA Table 5.6.A, 2026-06), a typical cable or fiber modem costs $0.001 per hour and about $10.83 per year at 24 hours a day. That is about 16% less than the national average for the US ($1.06 per month), because electricity in West Virginia costs 15.4¢ per kWh against 18.3¢ nationally. Each $1.00 of electricity buys roughly 809.1 hours of use.

How to lower the cost of running a cable or fiber modem

Frequently asked questions

How much electricity does a modem use per month?

Around 6 kWh a month at 8 watts continuous.

Is it worth turning off the modem at night?

It saves about 2 to 3 kWh a month. Most people find it not worth the hassle.

Do fiber ONTs use less power than cable modems?

Usually a little less, typically 5 to 8 watts.

Cost by region

US states
Canadian provinces

Related appliances

Use the generic electricity cost calculator · Which uses more? Take the quiz