SEO Title: Who Is The Cheapest Electricity Provider in WA? (Answered)
Meta Description: Find out who is the cheapest electricity provider in WA for 2025 with rates, and price comparisons for Synergy and Horizon Power for WA households.
Cheapest Electricity Provider in WA
What is the cheapest electricity company in WA? In a region where the cost of electricity will make the difference between a manageable household budget or unsustainable business overheads, taking control is essential. The electricity sector is regulated in Western Australia, although it mightn’t seem like it if you’re not in the business when you’re around these key players and tariffs that can help you to get the best deal for your power. This will include WA energy suppliers, their pricing, a review, and some tips on how to find the cheapest electricity in WA.
How The WA’s Electricity Market Works
Before you can work out who’s got the most affordable electricity in WA, you must first find out whether you can even choose your provider or not. The WA electricity market is one of the most regulated for households and has low retail competition compared to eastern States. Around 1.1million residential customers in Perth and the South West are served by Synergy, and Horizon Power provides electricity to about 100,000 customers in regional and remote areas, covering over 2.3million square kilometres.
Both are state-owned, and their prices are determined annually by the WA Government. Synergy’s standard Home Plan (A1) went up 2.5% in 2025, pushing the variable rate to 32.37c/kWh, with the daily supply charge now $1.16 per day. Horizon Power’s main A2 residential rate is also 32.37c/kWh and increases in line with inflation and is nearly the same as Synergy.
Average energy prices in WA’s Wholesale Electricity Market increased by 11% to sit at $89.03/MWh this year, attributed in part to record peak demand—4,486MW was achieved in January 2025, above 41%. So at the end of the day, if you’re wondering who is the cheapest electricity provider in WA, then the fact is that it’s more to do with government tariffs, and less to do with playing one competitor off against another..
The Main Electricity Providers in WA;
Synergy (In the SWIS)
Synergy is the largest provider of electricity in Western Australia, providing power to more than a million residents in Perth, Mandurah, Bunbury, Busselton and Augusta, as well as regional and rural customer. For most households and small businesses in the South West Interconnected System (SWIS), which covers Perth and some surrounding areas, the state-owned corporation Synergy is the main provider. If you wonder who is the cheapest electricity company in WA then Synergy electricity prices are often used as the home price comparison baseline. It’s their basic home electricity plan – the Home Plan (A1) – that becomes the de facto ‘base’ plan for a lot of households.;
As of 1 July 2025, this plan has a 116.0505 cents per day; (≈ $1.16/day) supply charge and 32.3719 cents per unit (kWh) usage charge. All prices are GST inclusive. It’s also worth noting that, if you have other homes, there is a separate supply charge of 46.1412 cents a day for each of those.
WA Synergy’s pricing is to the point so customers can understand what they are paying for. The daily supply charge is a fixed amount you pay for the privilege of being connected to the power grid – regardless of the amount of electricity you use. And is in part to help maintain the infrastructure that delivers power to your property. The electric bill, meanwhile, is a function of how much you use. That means that the more electricity you use, the more you’ll pay as price per unit.
Horizon Power
If you live in regional Western Australia — Broome, Karratha, Esperance, Exmouth, Carnarvon and many other remote areas — your electricity is provided by Horizon Power. The company serves about 100,000 customers outside the SWIS, over an extensive area and challenging terrain.
Their pricing is different than synergy, and can fluctuate greatly depending on location and usage. Horizon Power charges a daily access/volatile tariff, which stands at $2.0478 per day (for residential customers). The electricity rate is tiered: the initial 20 kWh/day are billed at 33.8181 cents/kWh, and consumption beyond that is billed at 31.8691 cents/kWh. Note that for usage above 1,650 kWh per day (i.e. over 49,500 kWh month), the rate is 35.9313 cents/kWh – a rate Roosa says customers that use the maximum won’t see. These residential rates are known as K1 and K2.
For businesses and other premises, Horizon Power has business tariffs available, including the L2 tariff for small businesses. On this tariff, the daily supply charge will be $2.0718. Usage charges cost 32.2412 cents/kWh for the first 1,650 kWh, then 36.3508 cents/kWh for usage over 1,650 kWh. These breakdowns show the importance of understanding your usage if you’re looking to determine who is the cheapest electricity provider in WA if you live or work in these region.
Horizon Power’s residential pricing is made up of a stepped structure, which basically means the more electricity you use, the cheaper the per-unit price (apart from an initial 20 kWh, after which the per-unit price can drop as low as 12c or 14c per kWh) – to a certain extent. But very high consumption sets the rate higher. This type of structure incentivizes a moderate level of consumption from part of the user pool as it potentially benefits the moderate to heavy consumers of daily-capped users within Tier 2.;
For businesses, the L2 tariff differentiates also between levels of consumption, making it clear for them that efficiency and usage control is the trick for a price management. Regardless whether you are looking for the cheapest electricity provider in WA but for regional business, always use your average daily or monthly WA electrical consumption to compare differently Horizon Power charge rates.
Other Electricity Providers in WA
Synergy and Horizon Power are the main suppliers however there are some smaller retailers that cater niche or specialized plan customers. These can offer competitive options, especially if they match your consumption.
Perth Energy (AGL)
Unbundled and bundled tariffs are provided by Perth Energy which is a branch of AGL. For their unbundled standard continuing offer, the peak and off-peak rates are 16.00 cents/kWh for both, with daily supply charges of $5.34 per day. By comparison their best (i.e. cheapest) option, it has a much higher peak and off-peak rate @ 40.00 c/kWh and higher $9.98 per day for the daily supply charge. Perth Energy also mentions residential tariffs equivalent to the K1 and K2 tariffs, the same as Horizon Power, including a daily supply charge of $2.0478, 33.8181 cents per unit for the first 20 units per day and 31.8691 cents per unit for consumption between 20 and 1650 units per day.
Kleenheat
Kleenheat, which is best known as a gas retailer, also provides electricity to some parts of WA. They charge 48.170c/kWh for peak and 39.831c/kWh for off-peak. The daily supply charge is 26.52 c/day. Kleenheat also has different account service feeds as part of the underlying rates for its customers, such as an Account Administration Fee of $1.99 per day per NMI, an Australia Post Payment Fee of $2.60 per payment, and a Cheque Payment fee of $2.50 per payment. Other charges are a Card Payment Fee 0.5% of the payment paid, and a Reminder Notice Fee of $8.34.
So, Who Offers the Cheapest Electricity in WA?
According to 2025 rates, there is no discrepancy in rates for standard residential customers between Synergy and Horizon Power:
Synergy and Horizon Power provide essential electricity to residential properties and charge a daily supply charge of $1.1605 with 32.3719 cents a unit for that electricity.
The fees for services, flat fees for connections services and exemptions, all are synchronized by state regulation so, wherever you reside, these costs are about the same unless you perform activities that consume unusual amounts of energy or you receive specific rebates.
If you live in the SWIS area (Perth and south-west), you are are supplied by Synergy – if you’re outside that area, Horizon Power is your retailer. There is no actual competition, because location has already made the “choice,” so to speak.; Who Is The Cheapest Electricity Provider in WA? For most people’s homes, “who is the cheapest electricity provider in WA” is more “who supplies your area?” Both prices the same.
Discounts, concessions and special Schemes for WA residents
In addition to comparing who is the cheapest electricity provider in WA, you also need to consider government rebates that are available to both Synergy and Horizon Power customers. All of these discounts can add up to significantly lower your bill:
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Energy Assistance Payment: An annual $342.85 off your bill for eligible concession cardholders.
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Dependent Child Rebate: $360.51 per year for 1st child, $94.46 per year for each additional child.
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Air Conditioner Rebate: $71.80 per month over the summer months for eligible remote residents.
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WA Residential Battery Scheme: Synergy customers get as much as $1,300 and Horizon Power customers can save up to $3,800 on new batteries.
The state government also makes occasional cash concessions for power bills — $75, twice a year, for every household, which your provider applies automatically. You can claim these rebates no matter which provider you have if you qualify.;
Solar Feed-In Tariffs in WA
If you have rooftop solar, the savings you gain could be the difference maker if you inquire about out-of-pocket costs when comparing WA power companies.
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Synergy (DEBS scheme): Between 2.5c/kWh and 10c/kWh depending on time of export and plan.
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Horizon Power: Their feed-in rates are geographically determined with them being usually priced less than retail prices during daylight hours, the structures are similar to Synergy’s Distributed Energy Buyback Scheme.
You are unable to select your solar feed-in tariff supplier, but by using more of your solar during the day your net cost is reduced anyway regardless of supplier.
Time-of-Use and Specialty Tariffs
Synergy and Horizon Power each provide unique time-of-use tariffs with lower pricing for use at so called “off-peak” times. Helpful if you run appliances or charge an electric vehicle at night, or heat water during the off-peak period. You’ll only pay less than the default rates.
Can I Change Power Companies in WA?
A massive part of discovering who is the cheapest electricity provider in WA comes down to your ability and options in comparing plans and providers. However, if you’re a standard use customer you’re not allowed to move between Synergy, Horizon Power or any other retailer for your household electricity in WA. The market is structured so that equity and security are emphasized over competition for households. You're assigned to Synergy or Horizon Power by address.;
Save on That Power Bill With The BLUETTI Solar Generator
BLUETTI EP760
Synergy and Horizon Power, with the two following government-guided pricing. But for anyone who desires genuine control of their power bills and energy freedom, an investment in a quality home power station solution can be a real game changer. This is what makes the BLUETTI EP760 a fitting alternative for families wanting to regain control of their utility bills. Featuring a high 7,600W power output and maximum PV input of 9,000W, the EP760 is designed to meet the energy demands of today’s homes. Its 3 MPPT (3,000W per unit) tracks the sun and offers ultra-high compatibility due to WA’s abundant sunshine.
What makes the BLUETTI EP760 power station unique is the B500 battery, with lithium iron phosphate cells all are well known for their safety and lifespan, even with a 10-year guarantee for extra piece of mind. Weighing in at only 44kg (97lbs), it's strong, and simpler to mount than most other units, and its IP65 water resistance makes it compatible with the full range of Australian weather. What’s more, connectivity is easy thanks to WiFi and Bluetooth built in – so you can keep an eye on the usage via an app. And with a local service team you can rely on, the extensive warranty the BLUETTI EP760 comes with means it’s an investment looking to the future for.
BLUETTI Apex 300 Solar Generator
Another system like the BLUETTI Apex 300 with the B300K battery and SolarX 4K controller can help. The Apex 300 has a 2.76 kWh battery capacity, roughly enough to run a standard fridge and a few lights for a day. It delivers 3,840 W of power, which means it can keep several appliances going at the same time. Add the B300K battery and you get another 2.76 kWh of storage, giving you more hours of use. With the SolarX 4K, the system can take in up to 4,000 W of solar during the day, so it recharges faster and makes better use of your panels.
FAQs
Who is the cheapest electricity in WA in 2025?
For those residential customers, Synergy and Horizon Power both bill to the same regulated rates: $1.1605 per day for the daily supply charge and 32.3719c/kWh. The cheapest provider is just the company that happens to be your local service provider.
Can you pick your own electricity supplier in WA?
No. If you’re in the SWIS (the Perth metropolitan area and south-west region), you’re with Synergy. Horizon Power services you when you’re in regional WA. There is no free market among households.
Are there additional discounts or special offers to watch out for?
Government rebates and concessions are also available to eligible customers for Synergy or Horizon Power. Occasionally there are rate plans or trial offerings that provide savings for high-usage customers or for exclusive customer segments, but most people do not have provider specific discounts to shop for.
What about solar feed-in tariffs, are they significantly different?
Feed-in tariffs are fairly uniform and regulated, but refer to the latest details as time-of-export and plan type can affect your rate. These can change yearly.
Will battery rebates actually reduce my bill, and who has the best offer?
Both providers are involved in the delivery of the WA Residential Battery Scheme – Synergy’s customers can access up to $1,300 for each eligible battery and Horizon network customers, up to $3,800. But the amount of battery savings you can expect will vary depending on your home use and how you manage solar storage.
