Phantom Load Cost Guide
The average US household wastes about $100–$200 per year on standby power — electricity consumed by devices that appear to be off but remain plugged in. Common culprits include cable boxes, game consoles, desktop PCs in sleep mode, and microwave ovens. This calculator lets you see the annual cost of your home's phantom load.
To estimate your total standby wattage, add up the standby draw of each device. Reference values: cable/satellite box 10–20W, game console 1–8W, desktop PC (sleep) 2–5W, TV 0.5–2W, microwave 3W, router 5–10W, phone charger 0.1–0.5W. A typical household totals 50–100W.
The easiest fix is a smart power strip that shuts off vampire loads automatically when the main device (like a TV) is turned off. A smart plug with energy monitoring can also help you identify which devices draw the most standby power.
Frequently Asked Questions
No — refrigerators need to run continuously and don't have meaningful standby draw. Focus on entertainment systems, chargers, and devices with displays or clocks. These are the real phantom load offenders.
Use a plug-in power meter (such as a Kill A Watt device) to measure each appliance's draw when idle. Alternatively, many smart plugs display real-time wattage through their companion apps.