Does Unplugging Appliances Actually Save Money?

A little — but probably far less than you think. Unplugging your phone charger saves pennies a year. The real standby draw comes from a few specific always-on devices — TVs, game consoles, cable/DVR boxes, idle computers — and for those, a single switchable power strip beats crawling behind the furniture every night. So the honest answer isn't "yes, unplug everything" or "no, it's a myth." It's: a small number of devices are worth dealing with, most aren't, and there's an easier way than nightly unplugging.

That's the short version. But "phantom load is fake" and "unplug everything to save big" are both wrong, and you deserve the actual numbers — because this one sits on a real effect that marketing and habit have blown out of proportion in both directions. Here's what standby power actually costs, which devices matter, and where unplugging fits among the levers that move a bill.

Phantom load is real — that's why the myth won't die

Start by conceding the kernel of truth, because it's genuine: many devices keep drawing power even when they're "off." Engineers call it standby power, phantom load, or vampire power — the trickle a device pulls to keep a clock running, listen for a remote, hold a network connection, or boot up fast.

It adds up to a real share of a home's electricity. Lawrence Berkeley National Laboratory, which runs the long-standing Standby Power research project, estimates that standby and idle loads together account for roughly 5 to 10% of residential electricity use — on the order of 50 watts continuously in a typical home. (LBNL Standby Power)

So the myth isn't pure nonsense. Five to ten percent of a bill is real money, and it's why utilities and energy sites keep telling you to unplug things. The problem is where people aim that advice: at the phone charger, which is almost the worst possible target.

Which devices actually draw standby power — and which don't

This is the part most "unplug to save" articles skip, and it's the whole game. Standby draw varies enormously by device. Lumping them together is what turns a real 5–10% effect into bad advice.

Near-zero — not worth unplugging:

• Phone and laptop chargers (nothing attached). A modern charger sitting in the wall with no phone on it draws so little it's hard to measure — well under half a watt. In one test, three phones left on their chargers after they'd finished charging drew about 1 watt total. (PCWorld) An empty charger is essentially free to leave plugged in.
• Most small appliances with no clock or standby light — a toaster, a kettle, a lamp that's switched off. If it has no display and no "instant" feature, it's drawing nothing meaningful.

Real, ongoing draw — worth addressing:

• Cable / satellite boxes and DVRs. These are the big offenders, and the cruel part is they're not really in "standby" at all — many run at nearly full power around the clock so they can record and respond instantly. A cable-box-plus-DVR combo can pull roughly 40 watts continuously, every hour of every day. (ACEEE set-top box research)
• Game consoles in "Instant-On" mode. A modern console set to resume instantly draws about 10 watts in standby — roughly ten times the ~1 watt it uses in its energy-saving setting. ENERGY STAR and the NRDC both flag the default "Instant-On" setting as a meaningful, avoidable draw. (ENERGY STAR, NRDC)
• Smart / connected TVs. A simple TV in passive standby draws under 1 watt, but a networked smart TV holding its connection can sit anywhere from 3 to 30 watts in network-standby mode. (ACEEE / LBNL)
• Desktop computers, monitors, printers, and networking gear left awake or in light sleep, plus anything with an always-warm transformer (older audio receivers, some kitchen gadgets).

The pattern: the cost lives in a handful of always-on entertainment and computing devices, not in the chargers. That's why "unplug your phone charger to save money" is the wrong target — it's the cheapest thing in the house to leave plugged in.

The math: pennies for a charger, real dollars for a DVR

Here's why the device matters so much. The cost of any standby load is just its wattage running continuously, so a few watts and forty watts are completely different problems. The figures below are illustrative — they use the U.S. average residential rate of about 16.3¢/kWh and round draw figures from the sources above; your own rate and devices will vary.

• A charger or device at ~0.5 W: 0.5 W × 24 hours × 30 days = 0.36 kWh a month → about 6 cents a month, well under a dollar a year. Unplugging it nightly saves essentially nothing.
• A game console in Instant-On at ~10 W: 7.2 kWh a month → about $1.17 a month, roughly $14 a year. Switching it to energy-saving mode (or onto a power strip) is worth it.
• A cable box + DVR at ~40 W: 28.8 kWh a month → about $4.70 a month, roughly $56 a year. This single always-on box can cost more than every charger in your home combined, many times over.

That's the honest spread. Chase the charger and you're saving pennies and annoying yourself. Deal with the entertainment cluster and you're capturing the part of that 5–10% that's actually large.

The practical answer: one switch, not a nightly ritual

So do you need to crawl behind the TV and unplug eight things before bed? No — and that's the genuinely useful takeaway. The fix that captures the real standby load with the least effort is a switchable power strip (a plain one works; a "smart" strip with a master-and-controlled-outlets setup does it automatically).

• Put the entertainment cluster on one strip — TV, console, soundbar, streaming box, and (if you can) the cable/DVR box. Flip the strip off when you're done, and you cut the whole cluster's standby draw with a single switch.
• Do the same for a desk — monitor, printer, speakers, chargers — on a second strip.
• Change the console setting once. Switching a game console from "Instant-On" to energy-saving mode is a one-time change that captures most of its standby cost with no ongoing effort.

A couple of honest "don't bother" calls, because over-doing this is its own trap:

• Don't unplug the refrigerator or freezer. Ever. They're supposed to run; unplugging them spoils food and saves nothing real.
• Don't unplug a DVR you're relying on to record — you'll just miss recordings. If it's a true always-on need, the answer is a more efficient box, not nightly unplugging.
• Don't bother with the empty charger. It's the poster child of this myth and the least worth your time.

One safety note: avoid putting a microwave, a window AC, or other high-draw appliances on a cheap power strip — those should stay in the wall.

Put it in proportion: the levers that actually move a bill

Here's the part that keeps this honest in the other direction. Standby power is real, but at 5–10% of the bill it's a small lever next to the big ones. If you tackle phantom load and stop there, you've left most of the savings on the table.

• Heating and cooling is 40–50% of a typical bill — far and away the biggest lever. The thermostat does more in a week than unplugging does in a year. See how to lower your electric bill.
• Water heating, the dryer, and the fridge make up most of the rest. Knowing what your largest appliances actually cost beats fussing over trickle loads — what appliances use the most electricity ranks them, and the electricity cost calculator shows what any device costs to run.
• Shop your supply rate. Your bill is essentially how much you use × the rate you pay, and in deregulated states you can lower the rate directly by beating your utility's default "Price to Compare." That's real money on every kilowatt-hour, no behavior change required. Start with how the Price to Compare works and how to choose an electricity company.

Think of phantom load as the finishing touch: a switchable power strip on the entertainment center is a sensible, low-effort win worth a few dollars a month. It's just not the headline — the headline is your HVAC and your rate.

The bottom line: unplugging appliances saves money, but only the right appliances. Skip the charger, switch off the cluster that's quietly drawing 40-plus watts, set the console to energy-saving, and put the rest of your attention where the real money is.

FAQ

Does unplugging appliances save money?

A little, but only for specific devices. Standby ("phantom") power is real — Lawrence Berkeley National Laboratory estimates it's roughly 5–10% of a home's electricity — but that draw is concentrated in a few always-on devices like cable/DVR boxes, game consoles in instant-on mode, and connected TVs. Unplugging those (easiest via a switchable power strip) saves a few dollars a month. Unplugging a phone charger or other near-zero devices saves only pennies a year, so it isn't worth the effort.

What uses electricity when turned off?

Anything with a clock, a remote sensor, a network connection, or a fast-boot feature keeps drawing power when "off." The meaningful ones are cable and satellite boxes with DVRs (often ~40 watts continuously), game consoles in "Instant-On" mode (about 10 watts versus ~1 watt in energy-saving mode), smart TVs in network standby (3–30 watts), and idle computers and printers. Phone and laptop chargers with nothing attached draw almost nothing — well under half a watt.

Is it worth unplugging things at night?

Not by hand, device by device — that's a lot of effort for a small payoff, and you should never unplug a refrigerator or freezer. The efficient version is to put your entertainment and desk clusters on switchable power strips and flip them off with one switch, and to set any game console to energy-saving instead of instant-on. That captures the standby load that actually costs real money without the nightly ritual. Then put your bigger effort into heating and cooling and your supply rate, which dwarf phantom load on the bill.