Heating and cooling (HVAC) – 53% Your air conditioner and furnace use the most electricity in your home (especially in Texas) at about 40-50% of your bill. It's hot for most of the year which means your air conditioner is working hard to keep your home cool for the most of the year.
Air conditioner usage varies based on the size of your AC. However, generally speaking, a central air conditioner will consume between 3000 and 3500 watts per hour. While window units use between 900 and 1440 watts per hour, portable units consume between 2900 and 4100.
Heating Ventilation and Air Conditioning (HVAC) is generally responsible for a significant proportion of total building energy consumption. A typical system accounts for approximately 40% of total building consumption and 70% of base building (i.e. landlord) consumption.
Heating and cooling are by far the greatest energy users in the home, making up around 40% of your electric bill. Other big users are washers, dryers, ovens, and stoves. Electronic devices like laptops and TVs are usually pretty cheap to run, but of course, it can all add up.
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.
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.
According to the U.S. Department of Energy, standby power accounts for as much as 5% to 10% of residential energy use, and homeowners could save $100 to $200 each year on utility bills by unplugging devices that aren't in use.
Therefore, the fan uses about 360 kWh per month in the ON mode. The average kWh in the US costs about $0.12 so it costs about $43 per month, or about $520 per year, to run a fan continuously. At this point, it should be pretty obvious that AUTO costs less than ON but let's math it out to its logical conclusion.
As we said, the type of air conditioner you have is going to determine how often it should be running throughout the day. Typically, you can expect the following: Central air systems: Eight to 14 hours. Window units: 12 to 18 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.
Unplug Unused Electronics
Unplugging electronics when they are not in use can drastically reduce your electric bill. Many devices, such as computers and televisions, still draw power even when they are turned off, so unplugging them can make a big difference in your energy costs.
1. Kitchen Countertop Appliances. Unplug small kitchen countertop appliances such as coffee makers, microwaves, electric kettles, and toasters. These are appliances that we typically keep plugged in at all times because some (like a microwave) have a digital clock that's convenient to have displayed.
Are those chargers consuming electricity when they're not charging devices? Does it make sense to pull the plug if you're not using it? Yes, say the energy experts! A charger that is not charging continuously consumes about 1 watt in the socket.
The most common reasons for a big jump in your electric bill include changes in your lifestyle, increased usage of energy-hungry appliances, and sudden weather changes.
The Givoni or Woods diagrams show a direct relationship between air speed and the drop in temperature felt by users of the room. In this case, a ceiling fan will consume between 20 and 50 watts (still a long way from the consumption of an air-conditioning system (800 to 1500 watts, i.e. 30 to 40 times more).
Your air conditioning system is one of the biggest culprits behind skyrocketing electric bills. When your air filter is dirty, refrigerant levels are low, your thermostat is faulty or you lack proper maintenance, your A/C system can end up using a lot more energy than it should.
According to the Department of Energy1, 78° Fahrenheit is the sweet spot for air conditioners to balance energy savings and comfort when people are at home and need cooling.