If you’re planning to install a new reverse cycle air conditioner in Melbourne, one of the first questions you’ll probably ask is:

“How much will it cost to run?”

Most homeowners focus on the purchase price of the system, but the ongoing electricity cost is just as important. The amount you pay to operate your air conditioner depends heavily on your electricity tariff — and that’s where the Victorian Default Offer (VDO) becomes important.

At Victorian Air-Conditioning Solutions, we believe homeowners should fully understand not only which system suits their home, but also how energy pricing affects long-term running costs.

This guide explains:

• What the Victorian Default Offer is
• Who sets it
• Current Melbourne benchmark electricity rates
• How to estimate air conditioning running costs
• Ways to reduce your power bills
• FAQs homeowners commonly ask

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What Is the Victorian Default Offer (VDO)?

The Essential Services Commission introduced the Victorian Default Offer (VDO) as a regulated electricity pricing benchmark for Victorian households and small businesses.

It was designed to:

• Protect customers from excessively expensive default electricity plans
• Provide a transparent reference price for comparing electricity offers
• Ensure fair pricing for households that haven’t actively chosen a market offer

Unlike retail electricity plans that are created by energy companies, the VDO is independently set by the Essential Services Commission (ESC) of Victoria.

The ESC reviews:

• Wholesale electricity costs
• Network charges
• Environmental scheme costs
• Retail operating expenses
• Energy market conditions

before setting the annual benchmark price.

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Why the VDO Matters for Air Conditioning Running Costs

Modern reverse cycle air conditioners are highly energy efficient, but they still rely on electricity to operate.

Your running cost depends on two main things:

1. The efficiency of your air conditioner
2. The electricity tariff you’re paying

Even the most efficient system can become expensive to run if you’re on a high electricity rate.

That’s why understanding the VDO is important — it provides a benchmark to compare whether your electricity plan is reasonably priced.

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Current VDO Electricity Rates in Melbourne

The exact VDO rate varies slightly depending on your electricity distribution area.

For Melbourne’s CitiPower distribution zone, benchmark residential rates are approximately:

These rates are reviewed annually by the Essential Services Commission.

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Understanding Electricity Charges

Usage Charge

This is the amount you pay for every kilowatt-hour (kWh) of electricity your home uses.

Every time your air conditioner runs, it consumes electricity measured in kWh.

Under the benchmark VDO rate:

• Every 1 kWh used costs approximately 26.6 cents

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Supply Charge

This is a fixed daily connection fee.

You pay this regardless of how much electricity you use.

For most Melbourne households under the VDO:

• The supply charge is around 98 cents per day

When calculating air conditioner running costs, the usage charge is the most important figure.

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How to Calculate Air Conditioner Running Costs

A simple estimate is:

$\text{Running Cost per Hour}\approx \text{Power Draw (kW)}\times 0.266$

Modern reverse cycle systems are efficient because they move heat instead of generating it directly.

This means:

• A 5kW system does NOT constantly draw 5kW of electricity
• Actual power consumption is often much lower

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Estimated Running Costs by System Size

Using the benchmark VDO rate of 26.6 cents/kWh:

Actual costs vary depending on:

• Outdoor temperature
• Thermostat settings
• Home insulation
• System efficiency
• Usage patterns

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Why Electricity Plans Matter More Than Most People Realise

Many Melbourne homeowners unknowingly pay significantly more than the VDO benchmark.

For example:

If your electricity plan charges:

• 34 cents/kWh instead of 26.6 cents/kWh

you could pay hundreds — even thousands — more annually to run the exact same air conditioning system.

For larger homes using ducted systems daily, the difference can become substantial.

That’s why checking your electricity tariff is just as important as choosing the right air conditioner.

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Are You Automatically on the VDO?

Not always.

You may be on the VDO if:

• You never selected a market offer
• Your contract expired and reverted to a default plan
• Your retailer uses the VDO as its standing offer

You may NOT be on the VDO if:

• You signed a market contract
• You recently switched energy providers
• You selected a discounted electricity plan

The easiest way to check is by looking at your electricity bill.

Victorian retailers are required to compare your current plan against the VDO benchmark.

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Tips to Reduce Air Conditioning Running Costs

1. Choose the Right System Size

Oversized systems can waste electricity.

Undersized systems often run continuously.

A professionally sized system delivers better comfort and lower energy costs.

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2. Set Efficient Temperatures

Recommended settings:

• Summer cooling: 24–26°C
• Winter heating: 18–20°C

Extreme temperature settings increase electricity usage significantly.

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3. Use Timers and Smart Controls

Modern systems allow:

• Scheduled operation
• Zoned heating and cooling
• Wi-Fi control

These features help reduce unnecessary energy usage.

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4. Maintain Your System

Dirty filters and poor maintenance reduce efficiency.

Annual servicing helps maintain:

• Airflow
• Efficiency
• Lower running costs
• System lifespan

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5. Compare Electricity Plans

Victorian homeowners can compare plans through the Victorian Energy Compare website to see whether they’re paying above or below the VDO benchmark.

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Why Choose Victorian Air-Conditioning Solutions?

At Victorian Air-Conditioning Solutions, we help Melbourne homeowners choose systems that balance:

• Comfort
• Energy efficiency
• Running cost savings
• Long-term reliability

Our services include:

• Split system installation
• Ducted reverse cycle systems
• System replacements
• Maintenance and servicing
• Energy-efficient upgrade advice

We work across Melbourne and surrounding suburbs with fully licensed and insured technicians.

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Frequently Asked Questions (FAQs)

What does VDO stand for?

VDO stands for Victorian Default Offer — a government-regulated electricity pricing benchmark in Victoria.

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Who sets the Victorian Default Offer?

The VDO is set by the Essential Services Commission, not by energy retailers.

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Is the VDO the cheapest electricity plan?

Not necessarily. Some market offers may be cheaper, while others can be much more expensive. The VDO acts as a benchmark for comparison.

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Does air conditioner size affect running cost?

Yes. Larger systems generally use more electricity, although modern inverter systems are highly efficient when correctly sized.

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Are reverse cycle air conditioners energy efficient?

Yes. Reverse cycle systems are among the most energy-efficient heating and cooling options available for Australian homes.

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How can I lower my air conditioning electricity bill?

You can reduce costs by:

• Using efficient temperature settings
• Maintaining your system
• Improving insulation
• Choosing the right electricity tariff
• Installing an energy-efficient unit

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Can Victorian Air-Conditioning Solutions help choose the right system?

Yes. Victorian Air-Conditioning Solutions provides expert advice on system sizing, installation, and energy efficiency for Melbourne homes.

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Contact Victorian Air-Conditioning Solutions

📞 0485 952 870
📧 info@victorianairconditioningsolutions.com.au
🌐 victorianairconditioningsolutions.com.au

Servicing Melbourne and surrounding suburbs.