How do I set my AC to save electricity?

Author: Alia Stehr  |  Last update: Sunday, July 5, 2026

One simple way to decrease energy costs is having a higher temperature setting on the thermostat when nobody is home. While you might be tempted to simply turn the AC off, it's actually better to adjust the temperature several degrees higher, by about 7-10 degrees.

What is the best AC temperature for a low electricity bill?

You can also reduce your energy costs significantly by raising the temperature while you are at work, away from home, or asleep. For the greatest savings, consider setting your thermostat to: About 78 degrees while you are at home. About 82 degrees while you are sleeping.

What temperature to keep AC on to save money?

If you don't have an ideal temperature, the DOE recommends using a baseline of 78 degrees when at home for the most savings. (Though Gall says most people are comfortable at around 75.) If that's still too warm for you, keep your ceiling fans on, and make sure they're running counterclockwise.

Which mode is best for AC to save electricity?

Eco or energy-saving mode

This is the ideal mode for users looking to save up on energy bills by toning down the performance of the AC and its compressor. Eco-mode uses less electricity by automatically adjusting the fan speed and temperature, while still maintaining a comfortable level of cooling.

How can I make my air conditioner consume less electricity?

One way is to set the temperature on the thermostat a few degrees higher than you would normally have it. This will help reduce the amount of time that the air conditioner is running, and therefore use less power. Another way to reduce power consumption is to make sure that the air conditioner's filters are clean.

How to conserve energy when using an air conditioner

How to lower electric bill with AC?

10 Ways To Reduce Your Air Conditioning Costs This Summer
  1. Running ceiling fans. ...
  2. Plant big shade trees around your house. ...
  3. Install a smart thermostat. ...
  4. Thermostat placement. ...
  5. Think about your basement. ...
  6. Seal off any leaks. ...
  7. Evaluate your home's insulation. ...
  8. Regularly service your AC.

How many hours should AC run per day?

On an average summer day, a general guideline is that your AC should operate between 12 and 16 hours. However, several factors can influence this, including the outdoor temperature, desired indoor temperature, the size and type of your unit, and your home's energy efficiency.

How do I set my AC to save energy?

Start by setting your thermostat higher than normal when you are away, and at 78 degrees when you are home. That is the Department of Energy's recommended setting when you need cooling, but want to save energy.

Is it better to leave AC on auto or off?

AUTO is significantly more energy efficient between the two modes since the fan is only running when your AC is going through its cooling cycle. This takes less power, which is more budget-friendly, with some estimates showing you can save as much as $50 per month just by keeping your AC on AUTO.

How to reduce electricity bill?

Our top 10 energy saving tips
  1. Switch off lights and electrical appliances when not using them. ...
  2. Switch to energy-saving LED light globes. ...
  3. Shut doors and close curtains. ...
  4. Save energy in how you wash and dry clothes. ...
  5. Understand and improve your home's energy use. ...
  6. Save energy in the kitchen. ...
  7. Manage your heating and cooling.

Is 72 a good temperature for air conditioning?

This is more of a personal question, as different people feel comfortable at different temperatures. Since 72 degrees is generally agreed upon to be an ideal indoor temperature, most people would probably still feel comfortable setting their AC units slightly higher than this, perhaps at around 75.

What is the cheapest temperature setting for AC?

One great way to lower energy costs is to avoid cooling an empty house. This is especially true during the middle of the day. If everyone in your household is either at work or school, then turning the temperature to 78-80 degrees will save you a chunk of change when the energy bill arrives.

What should I keep my AC on to lower my bill?

Set the thermostat as high as comfortably possible during hot weather. The less difference between the indoor and outdoor temperatures, the lower your cooling bill will be. Keep your house warmer when you aren't home during the day, but cooler when you come home at night.

What should I set my AC to in summer?

What is the Best Thermostat Setting for Summer Air Conditioner Use? Energy Star recommends the following thermostat temperatures for your air conditioner in the summer: 78°F during the day if people are home. 82°F at night if people are home.

Does adjusting AC temperature affect electricity bill?

Adjust your thermostat

You can save six to eight percent on your electric bill for every degree your thermostat is raised above 78º F in the summer, according to Smart Energy.

What is the best AC setting for low electricity consumption?

Experts suggest that the optimal AC temperature is around 78°F (25.5°C) during the summer months. This temperature keeps you cool without overburdening your energy consumption. It's like the Goldilocks zone – not too hot, not too cold.

Should I put my AC on fan or auto?

Keeping your fan on AUTO is the most energy-efficient option. The fan only runs when the system is on and not continuously. There is better dehumidification in your home during the summer months. When your fan is set to AUTO, moisture from cold cooling coils can drip and be drained outside.

What mode should I keep my air conditioner on?

Auto mode is ideal for homeowners who want to maintain a consistent temperature in their homes without having to constantly adjust the settings. It's especially useful during the hot summer months when temperatures can be extreme.

Does turning AC on and off cost more?

So, is it better to leave your AC on all day? Well, it depends. After all, turning the AC on and off costs more initially. However, leaving your AC on all day consumes more energy and adds wear and tear to your system, which may cost you more money for repairs in the long run.

What is the best AC setting to save money?

Energy Saver recommends setting your air conditioner to 78 degrees when you wake up, 85 degrees during the day, and 82 degrees when you're sleeping to save the most money. Kureczka suggests bumping the temperature up to the highest setting you're comfortable with.

What is the best AC temperature for low electricity bill?

A more moderate setting like 24°C (75.2°F) can achieve comfort with reduced electricity usage.

Does running the AC make your electric bill high?

AC definitely consumes more power than a Fan or a cooler, and how many hours will run AC depends on that your electricity bill will shoot up.

Do air conditioners need to rest?

Allowing your air conditioner to rest is an excellent way to extend its life and ensure it operates efficiently throughout the years. Air conditioners, like homeowners, require rest in order to recover and perform optimally.

How much does it cost to run an AC for 24 hours?

This means an AC unit could cost you from $5.17 to $5.94 per day to run. Or about $155-$178 per month you're running it. Let's say you still have an ideal home setup, but a home that's a little bit less than the size of the average home – around 1900 square feet.

Is it OK to run AC all night?

Running the “auto” function of your air conditioner all day and night isn't the best idea for any home. There are a few reasons you don't want to run your AC system all the time: System stress: Your air conditioner unit needs time to take a break.

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