EnergyAustralia is one of Australia’s “big three” energy retailers because it doesn’t just sell energy. It makes it, buys it, and supplies it at scale. As an EnergyAustralia electricity provider, it supplies electricity and natural gas to around 1.6 to 1.7 million retail customers (and over 2.3 million individual utility accounts) and business customers across the National Electricity Market (NEM), including Victoria, New South Wales, South Australia, Queensland and the ACT.
At the same time, it owns and operates a generation portfolio of roughly 5,000 MW of coal, gas, wind, solar and battery assets, backed by parent company CLP Group, one of Asia-Pacific’s largest investor-owned power businesses.
In this guide, we’ll walk through how EnergyAustralia grew to this size, what “integrated” really means, the kinds of EnergyAustralia electricity and gas plan it offers today, and what that means when you compare electricity plans or compare energy against other providers.
How EnergyAustralia Got So Big: History and Structure
EnergyAustralia’s current scale is the result of decades of asset transfers and brand changes. In the 1990s and 2000s, state-owned generation and retail assets were partially privatised, with CLP Group acquiring portfolios that later traded as TRUenergy.
In 2011–2012, TRUenergy bought the EnergyAustralia retail brand and ultimately rebranded itself as EnergyAustralia, combining large NSW retail operations with a significant generation fleet.
Today, EnergyAustralia is a “gen–tailer”: a generator and retailer in one. It generates electricity and sells electricity and gas to customers, employing around 2,300–2,500 people and serving roughly 1.6 million accounts across eastern Australia.
This integrated structure is a core reason it remains a dominant EnergyAustralia electricity provider when you compare EnergyAustralia vs other providers in major states.
Integrated Utility: Generation Portfolio and Assets
EnergyAustralia’s scale stems from being an integrated utility, and not just a retailer. It owns and operates a diverse generation portfolio of more than 5,000 MW across southern and eastern Australia, powered by coal, gas, wind, solar and battery storage.
Key examples include:
- Yallourn Power Station (Latrobe Valley, Victoria): A large coal-fired station scheduled to close in 2028.
- Mount Piper Power Station (NSW): Coal-fired baseload generation meeting the needs of around a million homes.
- Gas-fired plants like Tallawarra and Jeeralang.
- Wind assets such as Waterloo and Cathedral Rocks in South Australia.
- Emerging large-scale battery projects like Wooreen in Victoria.
Owning these assets means EnergyAustralia is not just buying energy from the market. It is producing a significant share of the NEM’s power itself, supporting its retail offers and enabling more complex products such as demand-response programs and solar electricity plans.
Retail Products: What Does EnergyAustralia Actually Sell?
From a customer’s perspective, the size of EnergyAustralia shows up in the range of its EnergyAustralia electricity and gas plans, across both residential and business energy plans in Australia.
For households, typical features include:
- Electricity and gas offer benchmarked against the Default Market Offer or Victorian Default Offer, with variable and fixed-rate structures.
- Options for controlled-load tariffs (e.g. for hot water) and time-of-use pricing that reward shifting usage outside peak times.
- Participation in programs like PowerResponse, where customers can earn bill credits for reducing consumption during high-demand events.
For businesses, EnergyAustralia offers tailored tariffs, demand-management options and contract structures that suit different usage profiles.
Because of this range, EnergyAustralia appears in almost every serious electricity comparison or gas comparison tool for the NEM states, and it is often one of the default brands you see when you compare electricity or look for cheap energy providers in Australia.
Solar, Feed-in Tariffs and the Clean-Energy Transition
Being a large provider also means EnergyAustralia has to lead in the clean-energy transition.
It supports rooftop solar through solar electricity plans and solar feed-in tariffs in Australia, paying customers for exported solar, though FiT rates vary by state and plan and have declined over time as solar penetration rises.
On the grid side, EnergyAustralia is investing in:
- New flexible gas and hydrogen-ready plants like Tallawarra B to replace coal capacity while maintaining reliability.
- Large-scale batteries (e.g. Wooreen Energy Storage System) to store surplus renewable energy and support grid stability.
- Community battery and “Go Neutral” style products that use storage and carbon offsets to help customers manage their footprint, although these products have attracted scrutiny for greenwashing.
Its stated purpose is to “lead and accelerate the clean energy transformation for all”, with commitments to exit coal by 2040 and reach net zero emissions by 2050.
This is one reason EnergyAustralia plays such a prominent role in large-scale renewable projects when analysts talk about market leadership in the NEM.
Innovation and Technology at EnergyAustralia
To support the transition, EnergyAustralia is layering technology on top of its traditional generation and retail business.
On the generation side (upgrades to gas plants like Tallawarra A and development of Tallawarra B as Australia’s first hydrogen–capable), net-zero-offset gas plant are designed to provide fast, flexible firming for growing wind and solar output.
On the customer side (programs such as PowerResponse) expanded Virtual Power Plant initiatives, “Battery Ease” and “Sun-Soaked Water” use smart meters, remote controls and behind-the-meter devices to shift demand and harness rooftop solar and storage at scale.
Community Battery Ease pilots in multiple locations give households access to shared battery capacity without owning their own system, which further blurs the line between centralised infrastructure and customer-side technology.
Corporate Backing and Financial Strength
EnergyAustralia is a wholly owned subsidiary of CLP Group, one of the largest investor-owned power businesses in Asia-Pacific, with assets across Hong Kong, China, India and other markets.
This corporate backing gives EnergyAustralia:
- Access to capital for large-scale projects (batteries, flexible gas plants, community programs).
- The ability to weather wholesale price volatility and regulatory changes that smaller retailers often find more challenging.
- Strategic support for long-term planning rather than purely short-term discounting.
In practical terms, when you compare electricity plans or compare energy in Victoria or compare energy in NSW, this backing is part of reason EnergyAustralia remains a stable, long-running brand in those markets.
Future Plans and Transition Roadmap
EnergyAustralia’s future plans are laid out in its Climate Transition Action Plan and sustainability disclosures.
It has committed to exit coal–fired generation by 2040 and achieve net zero scope 1 and 2 emissions by 2050, with an ambition to extend this to scope 3.
To get there, it plans to expand its renewable portfolio to up to 3 GW of new wind and other renewables by 2030. It is backed by around $5 billion in storage and firming initiatives, including at least 665 MW of firming already under construction.
Coal assets like Mount Piper are slated to move into a lower–output “renewables–firming” and eventual reserve role in the 2030s. While projects such as Golden Plains Wind Farm offtake, Wooreen and Hallett batteries, and new storage agreements are intended to replace that capacity over time.
For customers, these plans mean that the EnergyAustralia electricity provider you see today is deliberately evolving towards a mix of renewables, storage and smart–use programs rather than remaining on a predominantly coal–based utility.
What Do Reviews and Regulators Say?
No large utility is perfect, and EnergyAustralia review content reflects a mixed picture.
- Customers often appreciate broad availability, bundled electricity and gas plans, and programs that help them participate in demand response or offset emissions.
- At the same time, EnergyAustralia has faced regulatory scrutiny and legal action from the ACCC and AER over issues such as pricing transparency and hardship support, and environmental groups highlight its role as a major emitter due to coal assets.
This is why, when you compare EnergyAustralia vs other providers, it’s important to consider not just headline discounts but also customer support, hardship policies, emissions profile and how the brand is handling the transition away from coal.
Where Does Energyaustralia Sit Among Other Providers?
| Factor | EnergyAustralia today | What it means for customers |
| Customer base | ~1.6–1.7 million accounts across VIC, NSW, SA, QLD, ACT | Tier–1 presence; likely to appear in most compare electricity plans tools |
| Generation capacity | >5,000 MW coal, gas, wind, solar, batteries | Integrated utility; supports reliability but also emissions |
| Corporate backing | Wholly owned by CLP Group | Financial strength for long–term projects; stability |
| Clean–energy projects | Tallawarra B, Wooreen battery, community battery programs | Role in transition; supports new products like solar electricity plans |
| Market role | One of “big three” retailers in NEM | A default option whenever you compare energy or compare NBN plans with bundled offers |
How This Helps You Choose a Plan
Understanding why EnergyAustralia is so large helps explain why its offers are everywhere. But it doesn’t automatically make them the cheapest or best for you.
When you’re looking for cheap electricity, cheap gas or bundled electricity and gas plans, the best approach is to:
- Use government or independent tools to compare electricity plans and gas comparison for your postcode.
- Look at EnergyAustralia’s tariffs alongside smaller cheap energy providers in Australia to see who truly offers the best value for your usage.
- Consider whether you want Tier-1 stability and integrated assets, or a leaner retailer that focuses purely on pricing and customer service.
The Benefits of Generation Assets for Energy Providers:
They have many benefits and are vital in helping people choose their energy plan.
Reliability:
Generation assets enhance supply reliability. These assets ensure good energy connection even during peak usage periods or during power outages.
Cost Stability:
These assets give Energy Australia more control over energy rates and electricity prices. Cost control can enhance price stability for customers. This means energy prices are more stable.
Flexibility:
Having diverse assets lets Energy Australia adapt to market conditions. They allow Energy Australia to slowly transition to clean energy solutions without losing their reliable and cheap energy.
Environmental Sustainability:
Having pre-existing renewable energy sources makes it easier for companies to hit clean energy targets while appealing to environmentally conscious consumers.
Community Engagement:
These assets, particularly wind and solar farms, provide opportunities for community engagement. Beyond job opportunities, the systems can create education initiatives, investment opportunities and potential partnerships.
Energy Independence:
These assets give Energy Australia independence from electricity suppliers. Energy Australia has greater price control and is less influenced by market conditions. As a result, they can offer cheap electricity prices. This can potentially reduce your energy bill and help you save on electricity.
The key benefits of Energy Australia with their Generation assets include:
- Reliable energy
- Stable electricity costs
- Increased flexibility
- Sustainable energy options
- Economic benefits
- Potential energy connection advancements
As you can see, the assets of large providers can benefit customers looking to switch energy providers. However, considering various factors is crucial, including your energy consumption, energy prices, and availability.
Energy Australia’s assets are a huge factor in its success. They enable them to provide reliable and sustainable energy, making them well-equipped to meet Australians’ energy needs.
Energy Australia is on Cheap Bills’ panel of preferred energy providers. We understand that switching electricity providers is complicated.
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FAQs
What Is the Largest Energy Provider in Australia?
What Does EnergyAustralia Provide?
EnergyAustralia provides electricity and natural gas to residential and business customers across much of eastern Australia, including Victoria, New South Wales, South Australia, Queensland and the ACT. It also owns and operates generation assets including coal, gas, wind, solar and batteries, and offers products linked to the clean-energy transition, such as solar feed-in tariffs, demand-response programs, community battery initiatives and various business energy solutions.
Who Is the Largest Energy Supplier in the World?
There’s no single global “largest” energy supplier, because size can be measured by generation capacity, revenue, market value or customers, and the landscape includes state-owned and private companies. Big players include China’s State Grid Corporation and China National Petroleum on the state-owned side, and multinationals like Shell, ExxonMobil and EDF among private and semi-public firms. Each is “largest” on different metrics rather than one clear global winner.
Why Are Energy Costs So High in Australia?
Energy costs in Australia are driven by a mix of wholesale prices, network charges, environmental schemes and retailer margins. Recent years have seen high wholesale prices due to fuel costs, outages at large generators, and the complexity of transitioning away from ageing coal while building enough renewables and storage.
Network upgrades and global gas markets also feed into bills, making
costs feel high even when consumption hasn’t changed much.
Is EnergyAustralia an Australian Company?
EnergyAustralia operates as an Australian energy retailer and generator based in Australia, but it is not locally owned. It is a wholly owned subsidiary of CLP Group, a large investor-owned power company headquartered in Hong Kong with assets across the Asia-Pacific region. So, while EnergyAustralia serves Australian customers and runs Australian assets, its ultimate ownership sits with an overseas parent.
How to Switch Energy Providers and Save Money?
To switch and save, start by grabbing a recent bill and using a trusted comparison or government tool to check how your current plan compares on annual cost and tariff type. Look at alternative electricity and gas offers for your postcode, paying attention to usage rates, daily supply charges, discounts and solar FiTs if relevant. Once you find a better plan, apply online or by phone. Your new provider usually manages the transfer for you.
