Vampire power: the hidden 5–10% on your electricity bill
By WattDweller Editorial Team · Updated October 8, 2026
Your rental apartment is bleeding money, and you don’t even know it.
While you’re asleep, at work, or on vacation, a small army of electronics in your unit continues consuming electricity. This hidden drain is called vampire power (also known as phantom load or standby power), and according to the U.S. Department of Energy, it accounts for 5–10% of a typical household’s annual electricity use.