You turn off the television, unplug your laptop, and switch off the lights before bed. So why does your home still use electricity when nobody seems to be doing anything?
The answer is that some appliances and electronics continue to draw small amounts of electricity even when you’re not actively using them.
This is commonly called standby power, phantom load, or vampire power. The amount used by one device is usually tiny, but homes can have dozens of plugged-in electronics operating in standby mode at the same time.
That doesn’t mean you need to unplug everything in your house every night. In many cases, the electricity used by an individual device is very small. The goal is to understand which devices consume power while idle and decide where cutting standby use is actually worthwhile.
What Is Standby Power?
Standby power is electricity consumed by a device when it isn’t performing its main function but remains connected to a power source.
According to the U.S. Department of Energy, some devices consume electricity even when they appear to be turned off. This can happen because they need to maintain features such as clocks, remote-control functionality, network connections, settings, or quick-start functions.
For example, your television may look completely off, but it could still be waiting for a signal from the remote. A printer may remain ready to receive a print job. A charger may continue drawing a small amount of electricity while plugged in.
The device isn’t necessarily wasting electricity because it is poorly designed. Sometimes that standby power is required for a useful feature.
Which Devices Use Electricity While “Off”?
You may be surprised by how many everyday devices can consume standby power.
Common examples include:
Televisions and Streaming Equipment
Modern televisions often remain partially powered so they can respond quickly when you press the remote.
Streaming boxes, game consoles, soundbars, and cable or satellite equipment may also remain connected to power when you’re not actively watching anything.
Some newer devices have low-power modes, but their standby consumption can vary.
Computers and Monitors
Desktop computers, monitors, printers, speakers, and other computer accessories may continue using small amounts of electricity when they’re switched off or placed in standby or sleep modes.
Power management settings can help reduce this consumption.
If you leave a home office unused overnight, shutting down equipment completely can be a simple way to avoid unnecessary standby power.
Phone and Laptop Chargers
A charger that’s plugged into the wall may draw a small amount of electricity even when it isn’t charging a device.
Modern chargers are generally much more efficient than older designs, so the amount is usually small. Still, leaving multiple chargers permanently plugged in creates an easy opportunity to eliminate standby consumption.
Kitchen Appliances
Your kitchen may contain several devices that use electricity even when you’re not actively cooking.
Microwaves with digital clocks, coffee makers with displays, countertop appliances, and some ovens can draw power while waiting for their next use.
The display on your microwave might look harmless, but it needs electricity to remain illuminated.
Smart Home Devices
Smart speakers, smart displays, Wi-Fi-connected appliances, security systems, and other connected devices need electricity to stay connected.
In these cases, standby power is part of the device’s purpose. Unplugging your smart speaker every night would obviously make it less useful.
This is why the goal shouldn’t be to eliminate every watt of standby power. It’s about deciding which devices actually need to remain powered.
Does Standby Power Really Increase Your Electricity Bill?
Yes, but the impact varies considerably.
One device using a tiny amount of standby power is unlikely to make a noticeable difference on your monthly bill.
The bigger issue is accumulation.
A household might have several televisions, computers, chargers, printers, gaming consoles, speakers, kitchen appliances, and other electronics plugged in around the clock.
The U.S. Department of Energy notes that many commonly used electronics consume power while in standby or low-power modes, which is why low-standby-power products are encouraged.
However, it’s important to keep this in perspective. Turning off standby devices can help, but it usually shouldn’t be your first priority if you’re trying to significantly reduce your electricity bill.
Heating, cooling, water heating, and other major energy users can have a much larger impact.
What Should You Actually Unplug?
You don’t need to walk around your house unplugging every appliance.
Instead, start with devices that:
- You rarely use.
- Remain plugged in for long periods.
- Are easy to switch off safely.
- Don’t need an internet connection.
- Are grouped together in one location.
For example, if you have a guest-room television, DVD player, game console, and speakers that may sit unused for weeks, you could connect them to a power strip and switch the strip off when the room isn’t being used.
The Department of Energy also recommends using power strips as a convenient way to shut down groups of electronics at once.
Use Power Strips Strategically
Power strips can make reducing standby power much easier.
Instead of unplugging five devices individually, connect them to one power strip.
For example, your entertainment center might include:
- Television
- Streaming device
- Game console
- Soundbar
- DVD or Blu-ray player
When you’re finished using the setup for the day, one switch can disconnect several devices from the electrical supply.
Just be careful not to connect appliances that shouldn’t share a power strip, particularly high-power heating appliances.
What About Devices You Should Leave Plugged In?
Some devices are better left connected.
Refrigerators and freezers obviously need continuous power. Wi-Fi routers need electricity to maintain your internet connection. Security systems and medical or safety-related equipment may also need uninterrupted power.
Smart home devices may also be intentionally designed to stay connected.
Don’t unplug something simply because it consumes standby power. Consider whether the electricity it uses is necessary for the function you need.
How Can You Find the Biggest Standby Loads?
If you’re curious about which devices in your home consume the most electricity while idle, a plug-in energy monitor can help.
These inexpensive devices measure how much electricity an appliance is drawing and can help you identify equipment that uses more standby power than expected.
You may discover that the device you assumed was the biggest energy waster actually uses very little, while another forgotten piece of equipment consumes considerably more.
For more information about how standby electricity is measured, the DOE’s standby power guide provides a technical explanation of how this type of consumption is tested.
A Few Simple Habits Can Help
You don’t need to completely change your routine.
Try these simple habits:
- Turn off entertainment equipment when you’re finished using it.
- Use power strips for groups of electronics.
- Unplug chargers you rarely use.
- Enable sleep and power-management settings on computers.
- Turn off printers and monitors when they’re not needed.
- Choose energy-efficient electronics when replacing old devices.
- Avoid unplugging appliances that need continuous power.
If you’re also reviewing your household energy costs, understanding local pricing such as illinois energy rates can help put your electricity consumption into perspective.
Frequently Asked Questions
Does leaving appliances plugged in use electricity?
Some appliances and electronics consume small amounts of electricity while plugged in, even when they appear to be turned off. This is known as standby power.
Does unplugging a TV save electricity?
Yes, completely disconnecting a television from power eliminates its standby electricity use. However, the savings from one TV are generally small.
Should I unplug my phone charger when I’m not using it?
You can. Modern chargers typically use very little standby electricity, but unplugging chargers that aren’t needed is an easy way to eliminate that small amount of consumption.
Do smart devices use electricity all the time?
Many smart devices need continuous power to maintain an internet connection, respond to commands, or perform automated functions. Their standby consumption varies by device.
Is standby power a major cause of high electricity bills?
Usually, it isn’t the only or biggest cause. Standby power can contribute to household electricity use, but heating, cooling, water heating, and major appliances often have a much greater impact.
What’s the easiest way to reduce standby power?
Start with electronics you don’t use regularly. Connecting several devices to a power strip allows you to disconnect them all at once when they’re not needed.
Final Thoughts
Some of the electronics in your home are quietly using electricity even when you aren’t actively using them. That doesn’t mean your home is full of energy-wasting appliances or that you need to unplug everything before bed.
Standby power is simply another part of household electricity consumption.
The smartest approach is to focus on the devices where eliminating standby power is convenient and worthwhile. Use power strips for entertainment systems, unplug rarely used chargers, enable power-saving settings, and switch off equipment that doesn’t need to remain connected.
Most importantly, don’t let the idea of phantom power distract you from the bigger energy users in your home. If you’re trying to lower your electricity bill, look at the complete picture, including heating, cooling, water heating, appliances, and everyday habits.
A few small changes can help, especially when they become routines. And sometimes, saving energy really can be as simple as flipping one switch.
