Is a home server expensive to run?

Spin-down schedules for idle drives and efficient CPUs matter more here than anywhere: this box never sleeps. At typical use it adds about $7.22 to a monthly electric bill at the US-average rate, but that swings from $5.04 in the cheapest states to $18.77 in the most expensive.

How many watts does a home server use?

Home Server / NAS typically draws about 60 running watts. It's a resistive load, so its startup and running wattage are the same. Check the nameplate or label on your specific unit for its exact rating.

How much electricity (kWh) does a home server use?

At typical use (60 W for 24 hours a day), a home server uses about 1.4 kWh per day — roughly 44 kWh per month, or about 5% of what the average US home uses in a month (863 kWh). Energy used doesn't depend on your electricity rate — only the bill does.

How can I lower the cost of running a home server?

Spin-down schedules for idle drives and efficient CPUs matter more here than anywhere: this box never sleeps. You can also cut the cost by lowering your electricity rate — many utilities offer cheaper off-peak hours — or simply by running it fewer hours. The calculator on this page shows how changing hours per day or your electricity rate moves the number.

How Much Does It Cost to Run a Home Server / NAS?

A NAS or home server earns its keep 24/7 — at 60 watts around the clock, it costs more per year than most TVs. At the US-average rate of 16.5¢/kWh, running a home server costs about $7.22/month ($86.62/year) at typical use. Adjust the watts, hours, and your rate below for your exact number.

Power (watts)

Hours per day: 24

Days per week: 7

Your state (sets the rate)

Electricity rate ($/kWh)

Cost to run a home server

$87/yr

Per day: $0.24
Per month: $7.22
Energy per year: 526 kWh

Cost = power (kW) × hours × days × your rate. Defaults are typical values — enter your appliance's actual watts (often on a label) and your real rate for a precise figure.

How much electricity does a home server use?

At 60 W for 24 hours a day, a home server uses about 1.4 kWh per day — roughly 44 kWh per month and 526 kWh per year. That's about 5% of the 863 kWh the average US home uses in a month. Energy use is the same everywhere — only the price per kWh changes your bill.

Wondering about the circuit instead? See how many amps a home server draws.

Cost to run a home server by electricity rate

Same 60 W appliance, 24 h/day — the bill changes with where you live.

Scenario	Rate	Per month	Per year
Cheapest states (North Dakota)	11.5¢	$5.04	$60.50
US average	16.5¢	$7.22	$86.62
Most expensive (Hawaii)	42.9¢	$18.77	$225.27

Find your state's rate on the electricity rates by state page, or see the appliance wattage chart for more devices.

Frequently asked questions

At the US-average residential rate of 16.5¢/kWh, a home server drawing 60 watts for about 24 hours a day costs roughly $0.24 per day, $7.22 per month, and $86.62 per year. Your actual cost depends on your electricity rate and how much you use it, and the calculator on this page adjusts for both.

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How Much Does It Cost to Run a Home Server / NAS?

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Cost to run a home server by electricity rate

Frequently asked questions