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.

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).

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

Switched On: Energy Consumers Guide

All prices below are current as 1 July 2019.

Residential electricity tariff: A1 and A2
Tariff	Charges	Previous 1 July 2018	Current 1 July 2019
A1 & A2	Supply charge - per day	$1.0155	$1.0333
	Supply charge for additional homes - cents per day	40.3762	41.0828
	Electricity charge - cents per unit	28.3272	28.8229

Residential hot water heading tariff (existing customers only): B1
Tariff	Charges	Previous 1 July 2018	Current 1 July 2019
B1	Supply charge - cents per day	21.0903	21.4277
	Supply charge for additional homes - cents per day	21.0903	21.4277
	Electricity charge - cents per unit	11.6511	11.8375

Combined residential/business properties tariff: K1 and K2
Tariff	Charges	Previous 1 July 2018	Current 1 July 2019
K1 & K2	Supply charge - per day	$1.7154	$1.7686
	Electricity charge - cents per unit for:
	First 20 units per day	28.3272	29.2053
	Between 21-1650 units per day	26.6946	27.5211
	More than 1650 units per day	30.0972	31.0302

Community and charitable organisation tariff: C1 and C2
Tariff	Charges	Previous 1 July 2018	Current 1 July 2019
C1 & C2	Supply charge - cents per day	94.9058	97.2784
	Electricity charge - cents per unit for:
	First 20 units per day	22.1733	22.7276
	Between 21-1650 units per day	23.6574	24.2488
	More than 1650 units per day	22.5658	23.1299

Combined and charitable organisations/residential properties tariff: D1 and D2
Tariff	Charges	Previous 1 July 2018	Current 1 July 2019
D1 & D2	Supply charge - cents per day	94.9058	96.6141
	Supply charge for additional homes - cents per day	35.1848	35.8181
	Electricity charge - cents per unit	24.1118	24.5458