Electricity comparison Western Australia starts with your service area, regulated tariff, solar export rate and concession eligibility. Compare electricity plans Western Australia-wide by checking whether you are with Synergy, Horizon Power, an embedded network or a contestable business retailer.
Most WA households are supplied by Synergy in the SWIS or Horizon Power in regional and remote areas. Residential prices are regulated, so tariff and concession checks matter more than discount claims.
Larger-use business customers can often compare retailers. WA business electricity comparison should include network area, peak demand, contract length, metering and pass-through charges.
Your network determines outage support, tariff structure and whether your address sits in the main interconnected grid or a regional electricity system.
South West Interconnected System
Western Power operates the poles and wires network for Perth, Mandurah, Bunbury, Geraldton, Albany and much of the south west.
Regional and remote Western Australia
Horizon Power supplies electricity in many regional towns and remote communities outside the SWIS, often through isolated systems.
Apartments, retirement villages, mining towns and private sites
Some customers are supplied through embedded or private networks, which can limit retailer choice and change billing arrangements.
WA has no AER Default Market Offer (DMO) reference price. For households, the closest practical benchmark is the state-regulated residential tariff published by Synergy and Horizon Power.
| Framework | Area | Residential benchmark | Supply charge | Usage charge | Comparison note |
|---|---|---|---|---|---|
| AER Default Market Offer | Not applicable in Western Australia | No WA Default Market Offer (DMO) | N/A | N/A | The AER Default Market Offer (DMO) applies in NSW, South Australia and South East Queensland, not WA. |
| Synergy Home Plan A1 tariff | South West Interconnected System, including Perth and much of the south west | Regulated residential tariff | 124.0206c/day | 34.9532c/kWh | Residential customers in the SWIS are generally supplied by Synergy under regulated tariffs. |
| Horizon Power residential tariff | Regional towns and remote communities outside the SWIS | Regulated residential tariff | 124.0206c/day | 34.9532c/kWh | Horizon Power applies uniform tariff policy pricing for eligible residential customers. |
Cheap electricity WA comparisons should include concessions, because eligible rebates and hardship grants can change the effective annual cost more than small tariff differences.
Energy Assistance Payment: annual support for eligible concession card holders applied through electricity accounts
Dependent Child Rebate for eligible households with dependent children and qualifying concession cards
Air Conditioning Rebate for eligible households in prescribed high-heat locations
Thermoregulatory Dysfunction Energy Subsidy for eligible people who need heating or cooling for medical reasons
Life Support Equipment Electricity Subsidy Scheme for eligible medically required life-support equipment
Hardship Utility Grant Scheme for eligible households in financial hardship with overdue utility bills
For households, Synergy and Horizon Power are the key providers. Contestable business customers can compare a wider group of WA retailers and energy suppliers.
joel dsouza
2 months ago
I was able to compare different options without having to jump between multiple websites. Compared a few electricity options and ended up finding a better deal than what I was currently on. The whole process was simple and didn't take long at all.
molton machado
2 months ago
Last month I switched my electricity provider and got 50 dollars gift card .very easy to use and had a great experience.
Carol Smith
a month ago
Was really easy to use and took hardly any time. Found exactly what I needed without having to muck around checking a heap of different websites.
Retail choice is limited for most WA households. Synergy is the main residential retailer in the South West Interconnected System, while Horizon Power supplies many regional and remote areas. Comparison is still useful for checking tariffs, concessions, solar export rates and whether your property is in an embedded network.
No. The Australian Energy Regulator Default Market Offer (DMO) applies in New South Wales, South Australia and South East Queensland. Western Australia uses state-regulated residential tariffs instead.
WA is outside the National Electricity Market and has a different regulatory framework. Most residential customers are not fully contestable, so regulated tariffs and service area matter more than retailer discount comparisons.
Synergy supplies most residential customers in the SWIS and Horizon Power supplies many regional customers. Larger business and contestable customers may be able to compare retailers such as Alinta Energy, Perth Energy, Kleenheat and Shell Energy.
WA Government concession pages, Synergy and Horizon Power list eligibility for the Energy Assistance Payment, Dependent Child Rebate, Air Conditioning Rebate, medical energy subsidies and hardship support.