Air Conditioner Running Costs in Perth: How to Cut Them
Air conditioner running costs can be a big part of a Perth summer power bill, but a few smart choices make a real difference. Understanding what drives air conditioner running costs is the first step to cutting them. Here is what affects them and six practical ways to bring them down.
What drives the cost
Air conditioner running costs come down to how much power the system uses, which depends on its size and efficiency, how long you run it, and your electricity rate. A large or inefficient unit running for hours on a hot day adds up. The good news is several of these factors are within your control.
6 ways to cut air conditioner running costs
- Set the thermostat to a moderate temperature
- Use a correctly sized, efficient system
- Cool only the rooms you are using
- Service the system so it runs efficiently
- Use zoning and timers wisely
- Run it from rooftop solar where you can
The thermostat setting
One of the biggest levers on air conditioner running costs is the temperature you set. Every degree cooler uses more power, so setting a moderate temperature rather than the lowest possible makes a real difference. A sensible setting keeps you comfortable while keeping the running cost down noticeably.
Right size, right efficiency
A correctly sized, efficient system is cheaper to run than an oversized or old one. Air conditioner running costs are far lower with a modern, well-rated inverter unit that matches the room. If your system is old and thirsty, an upgrade can pay for itself over time through lower bills.
Only cool what you use
Cooling rooms nobody is in wastes money, so air conditioner running costs drop when you cool only where you are. With splits, run the units you need; with ducted, use zoning to target living areas. Closing doors and cooling a smaller space is a simple, effective saving.
Servicing and efficiency
A neglected system works harder for less cooling, pushing up air conditioner running costs. Regular servicing, clean filters and coils, checked refrigerant, keeps it efficient. A serviced system delivers the cooling you pay for, rather than wasting power struggling against dirt and wear.
Solar and timing
If you have rooftop solar, running the air conditioner during the day uses your own power, cutting air conditioner running costs sharply. Even without solar, being mindful of when and how long you run it helps. Pairing cooling with solar is one of the most effective ways to beat summer bills.
Insulation and sealing
How well your home holds temperature affects air conditioner running costs as much as the unit itself. Good insulation, sealed gaps, and shaded or curtained windows keep the cool in, so the system works less. Simple improvements to the home can noticeably lower cooling bills.
Curtains, blinds and shade
Keeping the sun out cuts the heat load the system has to fight. Closing blinds on hot afternoons, and shading west–facing windows, means it reaches and holds temperature more easily. It is a free habit that directly reduces running costs on the hottest days.
Upgrading an old unit
If your system is old and inefficient, no amount of careful use fully offsets its thirst. A modern inverter unit, correctly sized, can cut running costs enough to pay back over time. When an old system is on its way out, upgrading is often the smart long-term saving.
Why use a licensed professional
Getting the right system, sized, efficient and well-installed, is the foundation of low air conditioner running costs. A licensed professional advises, installs and services it correctly. The state’s Building and Energy sets the electrical standards involved.
Want lower air conditioner running costs in Perth?
ACS Electrical installs and services efficient systems across the metro. Explore our split system air conditioning service, air conditioner servicing guide or air conditioner size guide. Call 0419 967 838.
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