Household electricity pricing

Regulated electricity prices are determined by the State Government annually as part of the State Budget process.
Last updated: 5 July 2022

The Western Australian Government regulates Synergy’s and Horizon Power's electricity prices in line with the following electricity by-laws:

This means that Horizon Power and Synergy must make the regulated price available to their small use customers and some larger customers.

The electricity tariff by-laws set out the fees and charges Synergy and Horizon Power may charge during the course of supplying electricity to customers. Changes to electricity tariffs, fees and charges are considered by the Western Australian Government annually as part of the State Budget process.

Uniform Tariff Policy

The Uniform Tariff Policy means that small use Synergy and Horizon Power customers are all charged the same rate. This includes customers in remote regions, where the costs to supply electricity are considerably higher.

The extra costs of supplying electricity to these areas are partially funded by the Tariff Equalisation Contribution through electricity network charges in the South West Interconnected System (SWIS).

New to Western Australia

The Economic Regulation Authority has a guide on how energy is supplied to your residence.

Residential pricing

All prices below are current as 1 July 2022.

Residential electricity tariff: A1 and A2
Tariff Charges Current
1 July 2021
Current
1 July 2022
A1 & A2 Supply charge - per day $1.0514 $1.0777
Supply charge for additional homes - cents per day 41.8017 42.8467
Electricity charge - cents per unit 29.3273 30.0605

 

Residential hot water heading tariff (existing customers only): B1
Tariff Charges Current
1 July 2021
Current
1 July 2022
B1 Supply charge - cents per day 22.1515 22.7053
Supply charge for additional homes - cents per day 22.1515 22.7053
Electricity charge - cents per unit 12.2374 12.5433

 

Combined residential/business properties tariff: K1 and K2
Tariff Charges Current
1 July 2020
Current
1 July 2022
K1 & K2
 
Supply charge - per day $1.8553 $1.9017
Electricity charge - cents per unit for:    
First 20 units per day 30.6376 31.4035
Between 21-1650 units per day 28.8719 29.5937
More than 1650 units per day 32.5520 33.3658

 

Community and charitable organisation tariff: C1 and C2
Tariff Charges Current
1 July 2020
Current
1 July 2022
C1 & C2
 
Supply charge  $1.0146 $1.0399
Electricity charge - cents per unit for:    
First 20 units per day 23.7035 24.2961
Between 21-1650 units per day 25.2900 25.9223
More than 1650 units per day 24.1230 24.7261

 

Combined and charitable organisations/residential properties tariff: D1 and D2
Tariff Charges Current
1 July 2020
Current
1 July 2022
D1 & D2 Supply charge  $1.0007 $1.0257
Supply charge for additional homes - cents per day 37.1009 38.0284
Electricity charge - cents per unit 25.4249 26.0605

 

All rates provided are subject to rounding at the fourth decimal place. Please contact Synergy or Horizon Power for the exact rate that applies.