The Other Big Offenders in Your Home
The microwave standby power drain gets Gilgan’s attention as a top home energy cost because it’s so overlooked. But home energy waste doesn’t stop there. Understanding which appliances use the most power – both while running and while sitting idle – gives you a complete picture of where your money goes. The Silicon Valley Power appliance energy use chart and data from ATCO Energy help illustrate the full ranking.
Cable Boxes and Entertainment Systems
Cable boxes average around 16 watts in standby mode and draw nearly the same power whether you’re watching TV or not – that’s about $19 to $20 per year for a single box. Pair that with unplugging your microwave overnight, and you’ve tackled your two biggest kitchen and living room vampires without much effort, Gilgan said. Gaming consoles aren’t far behind. A PlayStation or Xbox in rest mode can draw 10 to 15 watts. Laptops average 60 watts per hour while running, and gaming consoles average 90 watts per hour – with high-end systems potentially using up to 220 watts per hour.
The Water Heater
This one is a genuine giant. Your water heater uses about 4,000 watts per hour compared to the average freezer, which uses only 35 watts per hour. Your hot water tank often runs 24/7 to maintain temperature, which is why it’s the second-largest energy guzzler in most homes – making up about 19% of total energy usage. Unlike the microwave, you can’t just unplug your water heater, but you can turn the thermostat down. Most units come pre-set to 140°F, which is 20 degrees higher than the U.S. Department of Energy’s recommended setting of 120°F. That one adjustment alone can trim your water heating bill noticeably.
The Clothes Dryer
On average, a clothes washer uses 500 watts per hour, whereas the average clothing dryer uses 3,000 watts per hour. Doing just five loads per week means your dryer could easily consume over 1,000 kWh per year, which translates to hundreds of dollars annually depending on your local electricity rate. Typical electric dryers use about 680 kWh of energy per year – meaning that for the average person, washer and dryer combined account for about $125 in energy costs annually, with nearly all of that cost coming from the dryer. This figure is based on December 2025 energy pricing data from Reviewed.com.
The Refrigerator
Your fridge is the one appliance running around the clock, 365 days a year – but modern models have improved substantially. The average refrigerator uses an estimated 657 kWh of electricity per year, costing upwards of $78.84 over 12 months. Older units, however, can cost two to three times that amount. Energy Star certified appliances use up to 20-30% less energy than standard ones – and replacing an old refrigerator alone can help you save $100-200 per year in electricity costs.
If you’re concerned about the energy impact of an aging fridge, you might also be wondering about other lifestyle factors affecting your health and wellness budget, which connects well to broader thinking about sustainable daily habits.