How to Cut Your Standby Power to Almost Zero (2024)

TL;DR: Standby power, sometimes called phantom load or vampire power, accounts for roughly 5% to 10% of the average US home's electric bill, or $100 to $200 a year. The fix is cheap: identify the dozen or so always-on devices (cable boxes, game consoles, chargers, TVs), put them on switched power strips or smart plugs, and physically cut power when they're not in use. Most households can get standby draw down to near zero for under $50 in equipment.

_Last reviewed: July 2026 · 7 min read_

You unplug the toaster, turn off the lights, and still the electric bill barely moves. That's standby power at work, dozens of small draws running 24 hours a day whether you're using the device or not. Here's what's actually pulling that power and how to shut it off for good.

Okoniq Property Hub helps homeowners log which appliances and outlets they've checked for standby draw, so nothing gets missed room to room.

What is standby power, actually?

Standby power is the electricity a device pulls while it's turned "off" but still plugged in and waiting for a signal, a clock update, or a remote command. It's not a myth or a rounding error. The US Department of Energy estimates it accounts for 5% to 10% of residential electricity use, which translates to roughly $100 to $200 a year for a typical household.

The reason it adds up is scale, not size. A single phone charger left in the wall draws less than 1 watt. But a cable box can pull 15 to 30 watts around the clock, a game console in standby mode pulls 10 to 15 watts, and a modern TV with a "quick start" feature can pull 3 to 5 watts even when the screen is black. Multiply a dozen of these across a house running 8,760 hours a year and the kilowatt-hours stack up fast.

If you're also trying to figure out which specific appliances are the worst offenders in your home, 5 Appliances Quietly Running Up Your Electric Bill breaks down the usual suspects by room.

Which devices waste the most standby power?

Entertainment and networking gear are the biggest culprits, not kitchen appliances. Cable and satellite boxes are consistently the worst offenders in DOE studies, some drawing nearly as much power in standby as they do while recording. Game consoles left in "instant-on" mode are the second-biggest source, and routers or modems, while individually small at 5 to 10 watts, run every hour of every day without exception.

Here's a rough breakdown of typical standby draw by device:

| Device | Typical Standby Draw | Annual Cost (at $0.15/kWh) | |---|---|---| | Cable/satellite box | 15-30W | $20-$39 | | Game console (instant-on) | 10-15W | $13-$20 | | Router/modem (always on, by design) | 5-10W | $6-$13 | | TV (quick-start mode) | 3-5W | $4-$6 | | Phone/laptop chargers (idle) | 0.1-1W each | $0.13-$1.30 each |

A house with four or five of these running nonstop can easily hit $100 a year in phantom load alone, before counting smaller items like microwave clocks and printers.

How do you measure standby power in your home?

The only way to know for sure is to plug a device into a watt meter and check the number when it's "off." A basic plug-in meter, often called a Kill A Watt, costs $20 to $25 and reads real-time wattage down to a tenth of a watt. Leave it on a suspect device for 24 hours and it'll show you the cumulative kilowatt-hours.

Start with your entertainment center. That's usually where the highest concentration of always-on devices lives: TV, cable box, soundbar, streaming stick, and console, often all in one power strip. If your home's electrical panel is aging or you're not sure your circuits can handle added smart-plug load without tripping, it's worth a quick check against 100 vs 200 Amp Service: Do You Have Enough Power? before adding more always-plugged-in gear.

What's the fastest way to cut standby power to near zero?

The fastest and cheapest fix is a switched power strip, one with a physical on/off switch that cuts all power to everything plugged into it, not a standby mode. A $10 to $15 strip on the entertainment center lets you kill the cable box, console, and soundbar with one flip when you leave the room or go to bed.

For chargers, printers, and countertop appliances scattered around the house, smart plugs ($8 to $15 each) let you schedule power-off times or cut them remotely from your phone. If you're adding smart plugs to older outlets, confirm they're properly grounded first. 2-Prong vs 3-Prong Outlets: How to Upgrade Safely covers what to check before you plug in anything smart.

A realistic target: most households can eliminate 70% to 90% of their standby draw with $50 to $75 in strips and smart plugs, paying for itself within the first year.

Is a whole-home energy monitor worth it?

A whole-home monitor is worth it if you want ongoing visibility, not just a one-time fix. Devices like Sense or Emporia clip onto your electrical panel and show real-time and historical usage by circuit, which catches new phantom loads as you add devices over time, something a one-time plug-in meter reading won't do.

They run $150 to $300 installed, so the payback period is longer than a $20 Kill A Watt. They make the most sense for owner-operators managing multiple rental units who want to spot unusual draw remotely rather than drive out to check a meter in person.

FAQ

How much money can I actually save by cutting standby power?

Most households save $50 to $150 a year by eliminating phantom load from entertainment centers and idle chargers, depending on local electricity rates and how many always-on devices they have.

Does unplugging my microwave or oven every day save meaningful money?

No. A microwave clock draws well under 5 watts continuously, costing roughly $3 to $6 a year, far less than a cable box or game console. Focus effort on entertainment gear first.

Will a smart plug itself use standby power?

Yes, but very little, typically under 1 watt when idle, which is negligible compared to the 10 to 30 watts saved by cutting power to the device behind it.

Can standby power damage my electronics if I keep switching them fully off?

No. Turning a TV, router, or console fully off and back on is normal use and won't shorten its lifespan; router reboots can actually improve performance over time.

Is standby power the same as a phantom load or vampire power?

Yes, all three terms describe the same thing: electricity consumed by a device that appears off but is still drawing current from the outlet.

This is educational information, not electrical or financial advice. Consult a licensed electrician before adding significant new circuit load, and check with your utility provider for your actual per-kWh rate when estimating savings.