Compare Electricity & Gas in South Australia

Comparing a range of South Australian energy providers can help you take advantage of market offers, available tariffs and the discounts available from various retailers. By comparing, you may realise you’re paying more than you need to for energy.

Here are just a few reasons to compare a range of energy providers in South Australia:

1. Take advantage of market offers. South Australian households can compare market offers, which can include incentives, discounts or cheaper usage rates for energy. By comparing your current plan against others on the market, you’ll know whether it’s time to switch providers.
2. Make the most of available tariffs. Smart meters are installed in many South Australian homes, allowing some customers to opt-in for time of use tariffs. These tariffs charge you less during low-demand periods and more when electricity is in high demand. Time of use tariffs may also include demand tariffs, so it’s important to understand your energy use and household needs to check it’s right for you.
3. Find a better deal. You may not be getting great value from your current energy plan without even realising it. By using our comparison service, you can browse different retailers to search for a cheaper energy provider in Adelaide and South Australia.

Yes, both residential and small business customers can switch energy providers in South Australia, whether that’s an electricity or gas provider. This means you could pay less for energy if you opt for a different provider or take advantage of other gas or electricity deals.

If you’re planning on finding a new provider, you should check the following:

• whether there are any exit fees you could be charged if you leave your current provider
• your current rate and usage and if you’ll benefit by switching to a different provider
• if you’ll be on a variable rate (no lock-in contract) or a fixed rate (potential lock-in contract term) with your new provider
• whether there are any deals or benefits you can take advantage of
• if GreenPower options are available to carbon offset your usage with renewable energy.

Electricity in South Australia is generated through renewable and non-renewable sources and then traded through the National Electricity Market (NEM). This means the NEM facilitates the sale of this energy from generators to electricity providers, who then sell it to you as the customer¹.

SA’s energy market is deregulated, meaning you can compare and choose electricity and gas plans from different retailers.

In SA, more than a third of homes are equipped with rooftop solar panels². With solar photovoltaic (solar PV) systems, SA residents can take advantage of solar feed-in tariffs. Feed-in tariffs allow you to sell unused solar power you’ve generated back to the grid, which appears as a credit on your energy bill.

The cheapest energy provider for Adelaide and SA according to Compare the Market research on the AER energy made easy website is Amber Electric. However, this can vary frequently as providers update their plans and prices.

While we have listed the prices of many electricity plans in Adelaide below, it’s important to understand that the availability of certain plans and deals may vary and can change often, and how much you pay will depend on your usage and daily supply charge.

By doing a gas and electricity comparison in SA with our free comparison service every few months, you can stay on top of great deals available from a range of providers.

In South Australia, SA Power Networks is the main electricity distributor, while Australian Gas Networks (AGN) is the primary gas distributor.

Distributors are responsible for transmitting gas and electricity to your home by maintaining pipes, meters, powerlines and poles. Distributors don’t set the prices you pay; instead, they charge providers for the electricity or gas service. Providers then determine the supply and usage charges that apply to you as a customer.

There are many electricity providers in South Australia, with the main three being Origin Energy, AGL and EnergyAustralia. If you’re looking to compare electricity providers in SA, you can see which energy providers retail electricity by reviewing the list below.

Compare The Market compare a range of plans from the below energy providers:

• AGL
• Alinta Energy
• Energy Australia
• ENGIE
• LUMO Energy
• Origin Energy
• OVO Energy
• Red Energy

Please note that Compare the Market does not compare energy products from all providers on this list as we do not compare all brands in the market or all products offered by all brands. Information about the partners we currently compare is available here.

Other electricity providers in SA an include:

• 1st Energy
• Amber Electric
• CovaU Energy
• Diamond Energy
• Dodo Power & Gas
• Energy Locals
• Future X Power
• GloBird Energy
• iO Energy
• Kogan Energy
• Momentum Energy
• Nectr
• Pacific Blue Retail
• Powershop
• RAA Energy
• Savant Energy
• Sumo
• Tango Energy
• Zen Energy

The information provided above is based in the postcode of 5000 and is accurate as of June 2026. Data sourced from the Australian Energy Regulator (AER) energy made easy website.

The main dual providers in South Australia are the same as the biggest electricity providers: Origin Energy, AGL and EnergyAustralia, but there are more available.

If you’re looking for energy companies that provide both electricity and gas in Adelaide, we’ve created a list below; however, not all providers may offer both types of energy in every suburb.

It’s important to note that electricity and gas are billed separately, meaning billing may end up on different days.

Compare The Market compare a range of plans from the below energy providers:

• AGL
• Alinta Energy
• Energy Australia
• ENGIE
• LUMO Energy
• Origin Energy
• OVO Energy
• Red Energy

Other electricity providers in SA an include:

• CovaU Energy
• Discover Energy
• GloBird Energy

The information provided above is accurate as of June 2026. Data sourced from the Australian Energy Regulator (AER) energy made easy website.

As of June 2026, the cheapest electricity plan in South Australia is the Battery + Solar plan offered by Amber Electric, which costs $2,070 annually. This is for a 2-3 person household with a single rate tariff and daily usage of 15 kWh.

The amount you pay for your electricity plan in SA will depend on your provider, as well as your usage and daily supply charge, which means you could be paying more than your neighbour for the same electricity usage.

Below is a list of energy deals that show some of the cheapest electricity in SA, sorted by annual cost.

Compare the Market does not compare energy products from all retailers on this list as we do not compare all brands in the market or all products offered by all brands. Information about the partners we currently compare is available here.

In South Australia, electricity and gas are charged through supply and usage charges. Supply charges go towards maintaining the network and transporting energy to homes and businesses, while usage charges are what you pay for the energy you use.

To understand your energy costs better, you could review your energy provider’s plan information document or check out our guide for reading your energy bill to understand what you’ll be charged.

The types of electricity tariffs in South Australia available to customers include single rate, time of use (TOU), controlled load and demand tariffs.

The tariff that you’re on will determine how much you pay for your electricity. Your energy habits may suit a single rate tariff, or you could potentially save on your energy bill with a tariff that charges different rates depending on the time of day you use electricity. Here’s how each tariff works:

• Single rate. The single-rate tariff charges a flat rate for energy usage regardless of the level of demand or the time of day.
• Time of use (TOU). Retailers can charge you different rates for electricity depending on the time of day and day of the week. You could potentially lower your bills by implementing energy-saving tips during high demand or peak times and using electricity more in off-peak times. Retailers set these times, and they can vary.
• Controlled load. Metered separately from your main tariff, controlled load tariffs generally offer lower rates for household appliances with high energy demands, such as hot water systems.  A demand tariff is an additional surcharge applied in addition to your usage charge, during periods of high demand to discourage heavy electricity usage and ease the burden on the electricity grid.

Yes, there are electricity concessions in South Australia available for both electricity and gas. These concessions may have eligibility requirements, such as needing to:

• hold a valid concession card, such as a Pensioner Concession Card or Commonwealth Seniors Health Card
• receive eligible Centrelink payments or parenting payments
• be a resident of the property
• be an account holder on the electricity or gas bill.

Read more about energy concessions that may be available to eligible SA residents.

A high electricity or gas bill may result from using more energy than you expected, the number of people in your household increased or your benefit period has expired. There are numerous other reasons why your energy costs could have increased, so it’s best to contact your energy retailer directly to talk about this.

Factors that can contribute to a higher bill include:

• you’re using more electricity or gas than expected
• the tariff type you’re on and when you use electricity or gas
• your discount/benefit period has expired and your gas or electricity rate increased
• you’ve incurred additional charges, such as late fees or unpaid amounts from previous bills
• appliances ageing and becoming inefficient
• the number of people in your household increased
• gas leaks.

The average electricity bill in South Australia – specifically Adelaide – is estimated to be $3,374 a year.³ This figure was determined by the Independent Competition and Regulatory Commission (ICRC)’s Retail electricity price investigation 2024-27, which showed that Adelaide’s bills are the highest of any of the recorded cities.

According to the ICRC, the average price for Adelaide residential customers in 2023-24 on a single rate tariff with an annual electricity usage of 6,500 kilowatt hours (kWh) was $3,246. For those on time of use plans, the average electricity cost was $2,871 a year. However, because everyone uses different amounts of electricity at different times and there are various providers across SA, your bill could vary to cost more or less than the estimated price.