3 Easy Ways to Save Energy When Doing Your Laundry Email 1. Wash with cold water instead of hot water. According to The Christian Science Monitor, each load of laundry that uses hot water instead of cold water uses an additional 4.5 kilowatt-hours and costs about $0.64 more. And while hot water is more likely to kill bacteria, it’s also harsher on fabric, causing shrinking, fading and wrinkling. Consider using warm water instead of hot water when you need to disinfect your laundry, and always opt to rinse on cold. Not only will you save energy, you’ll extend the life of your clothing, too. 2. Line dry your clothes instead of tossing them in the dryer. This will also save on energy, and as much as $25 per month on your electric bill. Now that it’s summertime, you can line dry clothes outside in the sun. Or, pick up an inexpensive folding drying rack for $30 or less to dry clothes year round. Hate when your clothes get too stiff? Tumble dry them for 10 minutes when they’re damp or dry to soften them up. 3. Wash your clothes less often. Americans tend to be obsessed with cleanliness, but wearing something once doesn’t necessarily mean it’s dirty. Give your clothes the sniff test. If they pass, you can hang them and spray them with a little water to remove any light wrinkles from wear. For even more ideas on how to save energy on laundry, check out this list by Apartment Therapy.