Your dishwashing routine might be a no-brainer: load up, add detergent, press start—done! But did you know the time of day you run your dishwasher could be impacting your energy bill? Utility companies often charge different rates based on demand, meaning you could be spending more than necessary for clean dishes. So, what’s the best time to run your dishwasher? Here, experts offer their tips to help you save money and energy.
When is the best time to run your dishwasher?
Want to lower your energy bill? Timing is everything. Running your dishwasher during off-peak hours—typically late at night or early in the morning—can result in decent savings. This is when electricity demand and rates are lower. But since off-peak hours vary depending on location and utility provider, be sure to check your provider’s website for the cheapest time slots.
“For those looking to save on electricity costs, the best time of day to run your dishwasher is at night during non-peak energy hours,” explains Mattia Sala, a product manager at
SMEG USA. He adds, “It also minimizes delays in hot water use. With fewer showers, baths, and other activities at night, your dishwasher won’t need to spend extra time heating up water.”
What are peak and off-peak hours?
Peak hours occur when electricity demand is at its highest—typically late afternoon and early evening. Think dinnertime, when families are cooking, running appliances, or cranking up the AC. Utility companies charge higher rates during these times.
On the other hand, off-peak hours are periods of lower demand, usually overnight or early morning. During these times, electricity is cheaper, making it easier to save without sacrificing any convenience.
“Using your dishwasher during off-peak hours, when electricity is cheaper, reduces the overall cost,” says Meera White, senior product marketing manager at
Whirlpool Corporation. She also highlights why dishwashers beat hand-washing: “Dishwashers are more energy-efficient and use significantly less energy than hand-washing dishes.”
Sala echoes this advice and adds another smart tip: “Waiting until the end of the day also enables you to fully load the dishwasher with an entire day’s worth of dirty dishes, minimizing the amount of water and energy you use by running a full load once.”
Can I run my dishwasher overnight?
Running your dishwasher overnight is a great way to take advantage of off-peak rates, but safety should always come first. Experts recommend only running your dishwasher when you’re awake and at home, just in case of an unexpected issue like a leak or electrical malfunction. If you want to run it late at night, try starting it an hour or two before bedtime instead of waiting until you’re asleep.
The Bottom Line: Save money with one simple change
By adjusting the time you run your dishwasher, you can cut down on energy costs without changing much about your routine. Running it during off-peak hours, using full loads, and keeping safety in mind ensures you’ll have sparkling dishes and a lower electricity bill. Your wallet will thank you—and so will your dishes!
Tierney McAfee is a freelance writer and Country Living and The Pioneer Woman contributor who covers entertainment, holiday & entertaining, food & drinks, design ideas, DIY, and more.
