most complained about energy companies

Most complained about energy providers

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What do you think of your energy company? The Australian Energy Regulator (AER) and Essential Services Commission (ESC) have revealed the number of complaints energy retailers received over the past quarter. Does your retailer make the list of shame?

The AER’s report reveals the number of complaints energy retailers received each quarter across Queensland, South Australia, New South Wales, Tasmania and the Australian Capital Territory, while the ESC’s report shares details for the year in Victoria. Keep reading to see if your energy company has made the list.

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Here are some sponsored deals from the retailers on our database that include a link to the retailer’s website for further details. These are products from referral partners†. These costs are based on the Ausgrid energy network in Sydney but prices may vary depending on your circumstances. This comparison assumes general energy usage of 3900kWh/year for a residential customer on a single rate tariff. Please use our comparison tool for a specific comparison in your area and to see other products in our database that may be available. Our database may not cover all deals in your area. As always, check all details of any plan directly with the retailer before making a purchase decision.

Here are some sponsored deals from the retailers on our database that include a link to the retailer’s website for further details. These are products from referral partners†. These costs are based on the Citipower network in Melbourne but prices may vary depending on your circumstances. This comparison assumes general energy usage of 4000kWh/year for a residential customer on a single rate tariff. Please use our comparison tool for a specific comparison in your area and to see other products in our database that may be available. Our database may not cover all deals in your area. As always, check all details of any plan directly with the retailer before making a purchase decision.

Here are some sponsored deals from the retailers on our database that include a link to the retailer’s website for further details. These are products from our referral partners†. These costs are based on the Energex network in Brisbane but prices may vary depending on your circumstances. This comparison assumes general energy usage of 4600kWh/year for a residential customer on a single rate tariff. Please use our comparison tool for a specific comparison in your area and to see other products in our database that may be available. Our database may not cover all deals in your area. As always, check all details of any plan directly with the retailer before making a purchase decision.

Which energy providers received the most complaints?

The AER recorded residential and small business customer complaints in each state. This data is displayed both in the number of complaints received and as a percentage of the retailer’s customer share. Below, we have listed the top 15 energy retailers with the highest number of complaints received during Q3 2023-2024, nationally.

This list combines both residential and small business complaints from each AER state or territory. It does not include data from Victoria.

Energy providers with the most complaints in Australia

Energy Retailer Complaints to the retailer (Q3 2023-2024) As a proportion of customers
Origin Energy 11,314 0.6%
EnergyAustralia 5,076 0.5%
Aurora Energy 2,379 0.8%
Red Energy 2,035 0.4%
Ergon Energy 1,819 0.2%
ENGIE/Simply Energy 1,658 1.1%
Alinta Energy 1,526 0.4%
AGL 1,283 0.1%
Lumo Energy 731 1.3%
Dodo 506 0.7%
Momentum Energy 463 1.5%
ActewAGL 288 0.1%
Energy Locals 257 0.4%
Altogether Group 199 0.9%
GloBird Energy 167 0.4%

Source: AER Retail Markets Report Q3 2023-24. Victorian data not included in this assessment. 

In the findings above, you will notice the larger companies with more customers receiving the most complaints. While these numbers appear greater on paper, remember that it is only a tiny fraction of their entire customer base across these regions.

Please note, while the information above can be useful for making a decision on your next provider, it should not be used to draw conclusions about retailer performance in handling complaints. While a retailer may receive and record many complaints, a great deal may be to do with wholesale or network costs and are out of the hands of the retailer. Many retailers are more than capable of dealing with complaints effectively. 

To further explore the data, we have listed state-by-state breakdowns below. For each state or territory, we have listed the retailers that received the highest number of complaints.

Providers with the highest number of complaints in NSW

Energy Retailer Complaints to the retailer (Q3 2023-2024) As a proportion of customers
Origin Energy 6,300 0.6%
EnergyAustralia 4,334 0.5%
Red Energy 1,659 0.4%
Simply Energy 849 1.1%
AGL 727 0.1%
Alinta Energy 646 0.7%
Dodo 429 0.8%
Momentum Energy 379 1.5%

Source: AER Retail Markets Report Q3 2023-24.

Origin Energy took out the highest number of complaints in New South Wales; however, in proportion to the number of customers it has across NSW, its complaint tally sits at the lower end of the list.

Providers with the highest number of complaints in QLD

Energy Retailer Complaints to the retailer (Q3 2023-2024) As a proportion of customers
Origin Energy 3,015 0.5%
Ergon Energy 1,819 0.2%
Alinta Energy 648 0.3%
EnergyAustralia 405 0.4%
Red Energy 316 0.5%
AGL 295 0.1%
Altogether Group 184 1.1%
ENGIE/Simply Energy 98 1.0%

Source: AER Retail Markets Report Q3 2023-24. 

Origin Energy received the most complaints in Queensland, followed by Ergon Energy and Alinta Energy. When looking at Queensland’s data, it’s important to note that Ergon Energy is one of the only retailers available to regional Queenslanders. As such, this retailer manages a large proportion of energy customers within the state.

Providers with the highest number of complaints in SA

Energy Retailer Complaints to the retailer (Q3 2023-2024) As a proportion of customers
Origin Energy 1,847 0.7%
Lumo Energy 805 1.3%
ENGIE/Simply Energy 711 1.1%
EnergyAustralia 291 0.5%
AGL 260 0.1%
Alinta Energy 232 0.5%
Energy Locals 95 0.6%
Momentum Energy 64 1.4%

Source: AER Retail Markets Report Q3 2023-24.

Origin Energy, one of South Australia’s largest energy companies, received the most complaints in SA. However,  however, Momentum Energy received the highest number of complaints per customer.

Providers with the highest number of complaints in ACT

Energy Retailer Complaints to the retailer (Q3 2023-2024) As a proportion of customers
ActewAGL 208 0.1%
Origin Energy 152 0.4%
EnergyAustralia 46 0.5%
Red Energy 37 1.5%
AGL 1 0.7%

Source: AER Retail Markets Report Q3 2023-24.

ActewAGL topped the list for the ACT in Q3 2023-24, with 208 complaints. 

Providers with the highest number of complaints in TAS

Energy Retailer Complaints to the retailer (Q3 2023-2024) As a proportion of customers
Aurora Energy 2,217 0.8%
1st Energy 63 0.4%
Energy Locals 11 1.3%

Source: AER Retail Markets Report Q3 2023-24.

Aurora Energy, Tasmania’s largest provider, received the highest number of complaints in Tasmania. Energy Locals ranked the highest when taking into account the number of customers each company services.

Providers with the highest number of complaints in VIC

When it comes to energy in Victoria, the state has its own independent regulator – The Essential Services Commission (ESC) – responsible for recording data. The ESC publishes a similar report to the AER, which also looks at complaints to retailers. However, instead of covering each quarter, the ESC only reports this data on a yearly basis. Unlike the AER’s reporting approach, the ESC also collates the number of complaints per 100 customers.

Below we have listed the top eight energy retailers with the largest number of residential electricity-related complaints in Victoria for 2023 -2024. Note, ENGIE/Simply Energy is not included in this data.

Energy Retailer Complaints to the retailer (2023-2024) Complaints per 100 customers in Q4
Origin Energy 8,127 0.42
Lumo Energy 5,159 0.65
EnergyAustralia 4,194 0.21
Red Energy 3,083 0.16
Momentum Energy 2,562 0.78
AGL 1,214 0.64
Alinta Energy 735 0.16
Dodo 561 0.29

Source: ESC ‘Victorian Energy Market Report’ 2023-24.

Similar to the AER states and territories, it’s generally the larger energy companies receiving the most complaints. In Victoria, Origin had recorded the most complaints for 2023 – 24. Momentum Energy received the most complaints per 100 customers in Q4, recording 0.78.

What are energy customers complaining about?

In addition to recording the number of complaints each retailer has received from customers, the AER also noted the types of things Aussies are complaining about. Below we have listed the top issues recorded for residential energy. Please note, this data does not include Victoria.

Top energy customer complaints for Q3 2023-24:

  • Billing: 17,435
  • Other: 7,685
  • Smart meter installation: 970
  • Marketing: 913
  • Customer transfer: 563
  • Smart meter installation delay: 397

Related: How to complain when your energy bill is wrong


Which energy providers are customers most satisfied with?

It’s important to remember that the  number of complaints an energy retailer receives doesn’t provide a sound picture of their service or capabilities. A retailer may receive many complaints, but handle them well. Conversely, an energy retailer with only a few complaints might deal with them poorly.

Canstar Blue annually canvasses the opinions of thousands of households, asking them to rate their experience with their energy retailer across multiple key variables, including value for money and customer service. Check out the links below to see how your power company performed in your state.

Complaints by energy provider

Despite being Australia’s second largest energy company, AGL isn’t the most complained about provider, with only around 0.1% of its customers making an electricity complaint in the last quarter.
Origin Energy is Australia’s biggest energy retailer and, unsurprisingly, tops the list for complaints across most states. It recorded the highest number of complaints in Australia in total, as well as in NSW, VIC, QLD and SA.
EnergyAustralia was the second-most complained about retailer overall, and received the second highest number of complaints in NSW and third highest in VIC.
Red Energy was the fourth most complained about energy retailer in the last quarter across all states and territories outside VIC.
Lumo Energy recorded the second largest number of complaints in VIC and SA, with 1.3% of its total customers outside VIC complaining in the last quarter.
Tara Donnelly
Utilities Editor
Tara Donnelly is an internet and mobile expert - sectors she’s spent a decade covering - and also oversees energy and consumer technology content. She holds a Bachelor of Communications from the University of Canberra and has shared her expertise on national media including 9 News, 7 News, Sunrise and the ABC.

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