Household electricity pricing

Regulated electricity prices are determined by the State Government annually as part of the State Budget process.

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

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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

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

Residential pricing

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All prices below are current as 1 July 2020.

Residential electricity tariff: A1 and A2
Tariff Charges Current
1 July 2019
Current
1 July 2020
A1 & A2 Supply charge - per day $1.0333 $1.0333
Supply charge for additional homes - cents per day 41.0828 41.0828
Electricity charge - cents per unit 28.8229 28.8229

 

As part of the response measures to the COVID-19 pandemic the Government has allowed regulated household charges, including electricity prices, to remain unchanged for 2020/21.

 

Residential hot water heading tariff (existing customers only): B1
Tariff Charges Current
1 July 2019
Current
1 July 2020
B1 Supply charge - cents per day $21.4277 $21.7705
Supply charge for additional homes - cents per day 21.4277 21.7705
Electricity charge - cents per unit 11.8375 12.0269

 

Combined residential/business properties tariff: K1 and K2
Tariff Charges Current
1 July 2019
Current
1 July 2020
K1 & K2
 
Supply charge - per day $1.7686 $1.8234
Electricity charge - cents per unit for:    
First 20 units per day 29.2053 30.1107
Between 21-1650 units per day 27.5211 28.3753
More than 1650 units per day 31.0302 31.9921

 

Community and charitable organisation tariff: C1 and C2
Tariff Charges Current
1 July 2019
Current
1 July 2020
C1 & C2
 
Supply charge - cents per day $97.2784 $99.7104
Electricity charge - cents per unit for:    
First 20 units per day 22.7276 23.2958
Between 21-1650 units per day 24.2488 24.8550
More than 1650 units per day 23.1299 23.7081

 

Combined and charitable organisations/residential properties tariff: D1 and D2
Tariff Charges Current
1 July 2019
Current
1 July 2020
D1 & D2 Supply charge - cents per day $96.6141 $98.3532
Supply charge for additional homes - cents per day 35.8181 36.4628
Electricity charge - cents per unit 24.5458 24.9876
Page reviewed 9 July 2020