Is gas cheaper than electricity?

Fact Checked

When it comes to powering your home, you have two fuel types to choose from – electricity and gas. For the millions of Australian households with access to both electricity and gas, each fuel type has its own advantages. But which product is cheaper, and which one is better for you to use?

Find out if electricity or gas is cheaper in this Canstar Blue guide.

Is gas more expensive than electricity in Australia

Households have two options when it comes to powering their homes – gas and electricity. Electricity is the more common option, with virtually every home connected to the energy grid. The Department of Industry, Science and Resources claims that as of 2024, five million Australians rely on natural gas to power their households.

Gas isn’t quite as powerful as electricity; according to Elgas, it takes 3.6 megajoules of gas to equal one kilowatt-hour of electricity. The rates you’ll pay for each will also depend on your energy distributor, retailer and choice of electricity or gas plan. As a general guide we’ve calculated the average usage rates in major cities below.

Electricity costs by city

Electricity customers are charged per kilowatt-hour (kWh) of electricity consumed, with households also needing to pay a ‘daily supply charge’ to cover the distributor’s cost of transporting the electricity to your home. This typically costs between 94.9c and 181.3c per day, depending on your location and the tariff type.

The average electricity usage rates for each major Australian city are as follows:

• Sydney: 34.7c/kWh
• Melbourne: 25.9c/kWh
• Brisbane: 31.5c/kWh
• Adelaide: 44.9c/kWh
• Perth: 30.8c/kWh
• Hobart: 29.5c/kWh
• Darwin: 28.1c/kWh
• Canberra: 25.1c/kWh

Source: www.canstarblue.com.au – 08/04/2024. Average electricity usage rates are based on single-rate, non-solar only plans on Canstar’s database, available for an annual usage of 4,378 kWh with the exception of Perth which is based on the Synergy Home Plan (A1) tariff and Darwin which is based on the government regulated rate. 

The usage rates listed are relatively standard for a ‘single-rate’ tariff. Those customers on time-of-use or block tariffs may be charged notably different rates.

Cheap electricity deals

Natural gas costs by city

Natural gas customers are charged per megajoule (MJ) of natural gas consumed, alongside the fixed ‘daily supply charge’, which generally costs between 22 and 85 cents per day depending on your location and distribution network.

Typical gas usage rates are:

• Sydney: 3.6c/MJ
• Melbourne: 3.4c/MJ
• Brisbane: 5.3c/MJ
• Adelaide: 3.6c/MJ
• Perth: 14.8c/Unit*
• Hobart: 5.1c/MJ
• Canberra: 3.7c/MJ

Source – www.canstarblue.com.au – 08/04/2024. Average gas usage rate based on summer rates of single-rate plans on Canstar’s database, available for an annual usage of 24,856MJ with the exception of Hobart which is based on Solstice Energy’s Standard Residential Tariff and Aurora Energy. *Average gas usage rate for Perth based on summer rates of single-rate plans on Canstar’s database, available for an annual usage of 6,300 Units (Unit defined as 3.6 MJ per WA.gov)

The above rates assume a single rate tariff. However, it is common for gas tariffs to operate on a block-rate basis, whereby the rate decreases incrementally as you use more gas.

Cheap gas deals

Read more: electricity and gas providers

Is gas or electricity cheaper?

From an initial glance, gas may seem cheaper than electricity to run, but it’s not as clear cut as that: a kilowatt is a bigger unit than a megajoule, meaning the final running costs are slightly different.

Here’s a quick guide to the most common appliances that are available as either electricity or gas-powered.

Electric vs gas: hot water running costs

Hot water systems can run on either gas or electricity. However, the running costs are more likely determined by the type of hot water system you have, rather than what powers it.

Gas hot water systems are cheaper to run, but are more expensive to purchase; electric hot water systems are cheaper to buy initially, but cost slightly more to run. Hot water systems generally also have an energy rating, allowing you to get more of an idea of how much energy each model consumes before you commit to buy.

Electric vs gas: heating running costs

Gas heaters are generally able to heat up small-to-medium sized rooms quicker and more efficiently than electric heaters. The downside is that they’re generally more expensive to purchase, and may require a flue to help expel fumes in some cases.

In comparison, electric heaters are usually more widely available, and come in a range of sizes and types. This allows you to find something potentially more suitable for the space you’re trying to heat, which may help you get more value in exchange for the higher running costs.

Read more: gas heaters vs electric heaters: Which is best?

Electric vs gas: stove running costs

Cooktops are another household appliance that are available as either an electric or gas model. Gas models tend to be thought of as a better option for cooking as they heat up quicker than electric types, in addition to having a slightly lower running cost. However, electric stoves are generally cheaper to purchase and install, making it an argument of short-term savings versus long-term savings.

Read more: gas vs electric oven running costs

Electricity vs gas appliance purchasing costs

While gas appliances are slightly cheaper to run, they also generally come with a higher price tag, which can outweigh the potential long-term savings.

For example, a brand-new, built-in electric oven can cost as little as $320, whereas an entry-level, built-in gas oven will cost you closer to $1,260.l The good news is that appliance prices are dependent on retailers, your choice of brand and which models you’re looking to purchase.

If you’re an avid cook, or want a well-heated home in winter, then it may work out cheaper overall to install gas appliances. Of course, this will also depend on whether you already have a natural gas connection at your home.

If you aren’t connected to the gas main, you’ll incur an additional fee, and will have to pay two daily supply charges if you have both an electricity and natural gas connection. This means the cheaper gas running costs may be quickly negated by additional fees and work needed to get your house ready.

For more detailed info on buying power-saving whitegoods, check out our guide on energy-efficient appliances.

How much does a natural gas connection cost?

If you don’t have a pre-existing natural gas connection at your home, you’ll need to organise a connection with your local gas distribution network. The price for gas connections can be anywhere from a few hundred to a few thousand dollars, depending on the network and the complexity of the work that needs to be performed.

If you’re nowhere near a mains network, your only option may be LPG. Also keep in mind that if you are renting, you will need your landlord’s permission before installing any gas connections or appliances.

To see if you are eligible for a mains natural gas connection, contact your gas distributor.

Electricity vs gas: pros and cons

While the costs may be the determining factor, electricity and gas each come with advantages and disadvantages. The below table explores the pros and cons of both fuel types.

Calculating what’s cheaper for your household can be difficult, particularly when you need to factor in installation costs, daily usage rates and new appliance costs. While gas generally has a slightly cheaper running cost, gas appliances and installing a gas connection can quickly outweigh the initial savings.

Is gas cheaper than electricity?

Whichever option ends up cheaper and more suitable is entirely dependent on your situation, household location and general preferences. If you’re away from an electricity grid, gas may be your only option. In comparison, those who already have access to the gas main may find opting for gas appliances cheaper in the long run.

Depending on your state and personal circumstances, you may be eligible for electricity rebates and concessions that can help with the cost of your energy bills and making the switch to electricity.

Research your rebate options to see what you can save. And if you get stuck, you can always check out Canstar Blue’s ratings for gas and electricity providers to see what plans are currently on offer.

Original reporting by Dean Heckscher
Image Source: ALDECA studio/Shutterstock.com