It’s midnight. The house is quiet, the day is done, and everything is turned off. But look closer. A tiny green light glows on your TV. A soft blue LED pulses from your game console. Your phone charger, laptop adapter, and coffee maker are all sitting there, silently waiting.
They may seem off, but they are all still drawing power from your outlets—a phenomenon known as “vampire power” or “phantom load.” While a single device might only sip a tiny amount of electricity, a house full of these silent drains can add up to a surprising amount on your yearly energy bill.
So, how much is this army of sleeping electronics actually costing you? We break down the numbers.
The Real Cost of “Vampire Power”
“Vampire power” refers to the energy consumed by an electronic device when it is turned off or in standby mode. This accounts for a staggering 5-10% of total residential energy use in the United States. For an average household, that can translate to over $100 a year spent on electricity you’re not even actively using.
Vampire Power Slayer
Can you find the hidden energy waste?
Click on the plugged-in devices to “unplug” them and see how much you can save in 15 seconds!
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Savings: $0/year
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Imagine what you could save by being mindful all year. Read our full guide to learn more powerful ways to cut your energy bill.
Here's a look at some of the most common culprits and what they might be costing you annually, just by being plugged in:
Appliance
Avg. Standby Power (Watts)
Estimated Yearly Cost (at $0.17/kWh)
Desktop Computer (in sleep mode)
2-5 W
$3 - $7.50
Laptop Charger (plugged in without laptop)
1-3 W
$1.50 - $4.50
Television (modern smart TV)
1-3 W
$1.50 - $4.50
Game Console (in standby/rest mode)
5-10 W
$7.50 - $15.00
Cable Box / DVR
15-25 W
$22 - $37
Coffee Maker (with clock)
1-2 W
$1.50 - $3.00
Microwave (with clock)
2-3 W
$3.00 - $4.50
Phone Charger (plugged into wall)
0.1-0.5 W
~$0.50
The Worst Offenders: It's Not What You Think
While it's easy to blame your phone charger, the real energy vampires are the devices designed for convenience and "instant-on" functionality.
Entertainment Systems: Your cable box, DVR, and modern game consoles are the biggest culprits. They are designed to constantly listen for remote signals, download updates, and record shows, consuming a significant amount of power even when you're not using them.
Older Electronics: That old VCR or stereo system in the guest room? Older devices are notoriously inefficient and can draw much more standby power than their modern counterparts.
Anything with a Remote or "Soft" Power Button: If you can turn it on with a remote, it's never truly off. It's always waiting, consuming power.
How to Slay the Energy Vampires and Save Money
You don't have to run around unplugging everything constantly. Here are a few simple, effective strategies:
Use Smart Power Strips: These are the ultimate vampire slayers. A smart power strip can automatically cut power to all connected devices (like your entire entertainment center) when you turn off the main one (the TV).
Unplug Seasonal or Infrequent Devices: The charger for your power tools or the old printer you use twice a year? Unplug them until you need them.
Choose Energy Star Appliances: When buying new electronics, look for the Energy Star logo. These products are certified to have low standby power consumption.
The Ultimate Solution: Taking Control of Your Power
Becoming aware of phantom load is the first step. The ultimate way to control your energy costs and decide exactly where every watt goes is to produce and manage your own power.
For Total Home Control: A home solar installation puts you in the driver's seat, letting you generate clean, free energy from the sun.
For Targeted Power: A portable power station is a fantastic tool to understand energy. You can see exactly how much power your devices are using and run your essentials silently and efficiently, without being tethered to a wall outlet.
By being mindful of what's plugged in, you can take a significant bite out of your annual electricity bill.
Suhas is the founder and chief editor of vecharged.com, a leading US-based publication focused on the future of energy and mobility. With a deep passion for the technology that is shaping our world, his work focuses on providing clear-eyed analysis and rigorous, hands-on reviews of the latest electric vehicles, home solar systems, and portable power solutions. He founded vecharged to cut through the industry jargon and provide consumers with the data-driven, unbiased information necessary to navigate the clean energy transition with confidence. His insights have helped thousands of readers make smarter, more informed decisions about their energy use.
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