If you’re in Western Australia, you may be able to save on your energy bills by comparing options on the market. While electricity prices are fixed, you can still shop around and compare gas plans to find a better deal.
How does WA’s energy system work?
WA’s energy system works differently depending on whether you are looking for an electricity plan or a gas plan.
The state’s electricity market is regulated, meaning that electricity customers do not have the option to select their electricity retailer and must purchase electricity from the government-appointed provider for their region.
However, when it comes to gas, households are free to choose their gas retailer. This means you can compare different plans, find better rates and save on your gas bills by switching to a plan that best suits your needs.
Types of energy plans
What is the average energy bill in WA?
Electricity prices in WA are regulated by the state government, with tariffs are set centrally rather than by competition. Based on Synergy’s current rates as of November 2025, we calculated that the average annual electricity bill in Perth for a three-person household consuming around 5,000 kWh comes to around $2,050 – roughly $171 per month – which is only slightly above the national average of $1,994 per year.
How to compare gas plans in WA
How gas plans work in WA
In Western Australia, households are free to choose their gas retailer and can switch providers at any time if they find a better deal.
There are two main types of gas contracts:
- Standard contract: this is the provider’s basic plan that customers are placed on if they don’t actively choose a plan, and is typically the most expensive option.
- Market contract: these plans offer different pricing and terms, with retailers often providing multiple options to suit different needs.
While the state government sets a price cap on what retailers can charge for gas under standard contracts, retailers are free to offer more competitive rates through market contracts, so your gas costs can vary widely depending on your chosen plan and provider.
Gas tariffs in WA
Most gas plans in WA use either:
- Single rate tariffs: you pay the same price per unit regardless of when you use gas.
- Block tariffs: you pay one rate for the first block of usage and another rate once you pass that threshold.
Gas providers in Perth and WA
WA has a single gas distributor, ATCO Australia, but customers can choose from several gas retailers. These include:
- AGL
- Alinta Energy
- ENGIE
- Kleenheat
- Origin Energy
Cheapest gas plans in Perth
As of November 2025, these are some of the cheapest gas plans available in Perth through Savvy.
| Retailer | Plan | Estimated monthly cost | Estimated annual cost |
|---|---|---|---|
| AGL | Savers | $50 | $583 |
| ENGIE | ENGIE Perks | $51 | $592 |
| Source: Econnex, November 2025
Estimated costs based on an average daily usage of 11 MJ |
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Tips for comparing gas plans in WA
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Be aware of your gas usage
Consider how much gas you use and how you use it. If you only use minimal gas at home, a plan with lower supply charges but higher usage rates might save you money – but if you have high consumption, a plan with higher daily charges but competitive usage rates might suit you better.
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Check the fees and terms
Extra fees can quietly increase your gas bill, like late payment penalties, credit card or payment processing charges and account setup fees. Before signing up, review them carefully based on how you pay and manage your account to avoid surprises.
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Look at perks and discounts
Some plans offer discounts or rewards such as money off your gas bill, discounts for bundling with other services, or loyalty program points, which can provide extra value.
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Factor in the full cost
Introductory or time-limited discounts can lower your bill temporarily, but it’s important to check what happens once the discount ends as these plans could cost your more in the long run.
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Stay on top of your plan
Gas prices can change often, so regularly reviewing your plan and switching when a better deal comes up can save you money. If you don’t select a new plan when your current one ends, you’ll usually be moved to a standard contract, which may cost more.
How does the electricity market work in WA?
Households in WA cannot choose their electricity retailer and prices are regulated by the WA Government rather than set by competition to keep them stable and affordable across the state.
WA has two main electricity networks that supply different parts of the state:
South West Interconnected System (SWIS)
The SWIS supplies more than a million homes and businesses across Perth and south-western WA. The electricity distributor in this region is the state-owned Western Power, and the only electricity retailer for households is Synergy, which is also government owned.
North West Interconnected System (NWIS)
In the north and throughout remote and regional WA, electricity is supplied through the NWIS and a network of smaller microgrids. State-owned Horizon Power is both the distributor and sole retailer in these areas, serving more than 100,000 people.
Electricity plan options
While households are unable to choose their electricity retailer in WA, they may have some choice over the type of plan or tariff they’re on.
Synergy offers four plans as of November 2025:
- Flat rate tariff: you pay the same price for electricity no matter when you use it.
- Time-of-use tariff: different prices for peak and off-peak periods.
- EV add-on tariff: reduced rates for charging an electric vehicle during set off-peak hours.
- Combined (stepped) tariff: designed for households running a small business from home, with one rate for the first 20 units per day and a different rate for usage above that.
Horizon customers can choose from:
- Flat rate tariff
- Combined (stepped) tariff
Prepaid power may also be available to allow customers to pay for electricity in advance and top up as needed.
Solar feed-in tariffs in WA
In WA, customers with solar panels can export their excess electricity back to the grid through the Distributed Energy Buyback Scheme (DEBS). This scheme pays eligible customers for the energy they export, with different rates to encourage exporting during peak demand times rather than when supply is abundant.
- Peak (3pm–9pm): 10c/kWh (Synergy), 10c/kWh (Horizon Power)
- Off-peak (9pm–3pm): 2c/kWh (Synergy), 3c/kWh (Horizon Power)
Rates are correct as of July 2025.
Residents can also take advantage of the Australian Government’s Cheaper Home Batteries Program, which offers discounts on the upfront cost of installing small-scale solar batteries. For a 10kWh battery, eligible applicants can receive:
- $5,000 rebate for Synergy customers
- $7,500 rebate for Horizon Power customers
Why compare energy plans through Savvy?
WA energy rebates and concessions
Depending on their circumstances, WA residents may be eligible for support to help them pay their energy bills.
Energy bill relief
In 2024, WA households received a $700 electricity credit on their electricity bills, consisting of:
- $400 from the WA State Government as part of the 2024-25 cost-of-living support measures
- $300 from the Federal Government’s Energy Bill Relief Scheme
In 2025, the Australian Government extended the Energy Bill Relief Scheme, providing an additional $150 off energy bills in two $75 instalments. However, this scheme is set to end in December 2025.
Energy concessions
If you are a concession card holder or on a lower income, you may also be eligible for additional help with your energy bills.
