Managing indoor air temperatures during the summer is challenging, and if you're not careful, it can be costly. If you're already cringing about cooling costs, it's important to focus on your energy consumption.
“As temperatures begin to rise, we will all start paying closer attention to our energy bills as we turn the heat off and the air conditioner on," agrees Maureen Minkel, Senior Director of Energy Efficiency and Conservation at South Jersey Industries. "Luckily there are easy steps homeowners and renters can take to stay energy-conscious and save money."
As we go through her advice, remember, utility providers are focused on this agenda, too. "It’s always a good idea to check with your energy provider for tips and/or energy-efficiency programs that may be available to help you save even more."
You never know what your local providers will recommend or offer to help you combat high outdoor temperatures and electricity usage; some utility companies have been known to offer a free energy audit, while others can share information on solar energy or Energy Star savings.
Furthermore, some municipalities are willing to help forward-thinking homeowners plant shade trees to offset AC costs in the future.
1. Adjust Your Thermostat to Manage Air Conditioning Costs
On hot days, knocking the humidity out of the air with the AC is usually enough to make your home a comfortable temperature, but managing your temperature settings day-to-day is important, too. "According to the U.S. Department of Energy (DOE), the most cost-effective AC setting for summer is 78 degrees Fahrenheit when you are home and awake," notes Minkel. You might be used to craving an icy 70- to 75-degree setting, but every degree makes a difference when the energy bill arrives. This logic applies whether you're using a window unit or central air conditioner.
Additionally, homeowners who switch to programmable thermostats or smart thermostats can also save money. These products can adjust the indoor temperature based on whether or not someone is home, reducing energy waste and lowering utility bills.
Smart thermostats can also be controlled remotely, allowing homeowners to adjust the thermostat temperature from anywhere, ensuring energy isn't wasted when no one is home.
2. Replace Air Conditioner Filters Every Month
Replacing the dirty filter in your central air conditioning unit every three months is standard for most of the year, but heightened pollen and air particles during the summer justify more frequent filter changes. "A dirty air conditioning filter makes your cooling unit work harder than it needs to," notes Minkel. "Be sure to add 'replace air filters' to your monthly household to-do list to improve energy efficiency and reduce costs."
Even better, did you know you can ask Alexa to set a reminder to check your furnace filter? She'll never forget (and depending on the brand and product you use, she can even set up a recurring delivery so a new, clean filter arrives on your doorstep once a month).
Not convinced that you need to do it monthly to reduce energy costs? The Filtrete™ Smart Air Filter has a sensor that tracks the life of your filter. Use its real-time insights to monitor its real-time airflow and lifespan.
3. Close Your Window Shades
If you can manage your daytime temperatures, you'll have a more comfortable nighttime temperature. "By drawing your blinds in the afternoon in the warmer months (especially south-facing windows), you can prevent additional heat mid-day when the sun is the strongest and keep your house cool," notes Minkel.
She adds, "Additionally, consider window treatments and coverings that can improve energy usage in your home and seal any air leaks around doors and windows."
If you're not around to adjust drapes on windows throughout the day (or, like most of us, simply forgetful), smart shades can be a smart solution. Lutron is just one brand that sells window coverings that can be scheduled or manually controlled via the Lutron app.
4. Skip the Oven
Avoid heat-generating household appliances. "No-cook summer meals are a great solution when temperatures get too high," notes Minkel. "Grilling is also a great way to save money, be energy efficient, and control the amount of heat gain indoors during the summer months."
Not to mention, a big dish of vegetables with grilled chicken is a great way to put all those garden vegetables to good use so you reduce food waste.
5. Turn Off the Lights in Your House
Simply put, go dark. "A easy way to save money and reduce your electricity use this summer is to use natural lighting to light up rooms during the day," points out Minkel. It isn't always possible, but just like your parents always expected, turn off the lights when you leave the room, or opt for task lighting instead of turning on all the recessed lights if you're doing food prep in the kitchen.
"Work from home?" asks Minkel, as if she can read my mind. "Consider moving your desk or workspace near the window and enjoy the natural sunlight."
6. Clean Your Refrigerator's Condenser Coil
Your fridge is a hard-working appliance, but when it's warm in your home, it can be harder to keep the food cool. Cleaning dust and buildup from the back of your fridge helps improve air flow and promote energy savings during hot weather.
A good rule of thumb? Clean behind it every six months at the same time you change the clocks (and your smoke alarm batteries).
Does lowering my water heater temperature in the summer help AC bills?
Yes. Lowering your hot water heater to around 120°F can save money on electricity bills, especially during hot summer months when overall energy demand is higher.
Many people don’t realize that the hot water tank runs year-round and can generate extra heat inside the house.
Avoid hot showers. Use cold water for laundry. If your electric company offers off-peak pricing, consider charging your EV and running dishwashers and washing machines during those lower-rate hours to reduce costs even more.
Do air ducts affect my electric bills in the summer?
Yes, on hot summer days and also in the winter. If your air ducts are leaking or poorly insulated, air escapes before reaching the rooms that need it. That forces your heater (winter) and air-conditioning system (summer) to work harder, which drives up electricity bills.
A quick inspection for leaks, gaps, or disconnected sections—especially in attics or basements—can make a noticeable difference. In dry climates, sealing ducts is even more helpful since air doesn’t carry moisture and cools faster.
You don’t always need an HVAC professional to make these repairs; foil-backed tape and mastic sealant can be effective DIY solutions.
