Skip to main content

Synergy Large Business Demand HV tariff

Don't forget the small print

Effective 1 March 2022. Prices are subject to change from time to time and other fees and charges may also apply. Prices listed include GST unless otherwise stated. By law we calculate our prices to four decimal places. Electricity is charged by the 'unit'. A 'unit' is one kilowatt-hour (kWh).

The pricing details shown relate to Synergy customers connected to the South West Interconnected System (SWIS), covering the area from Kalbarri in the North, down to Albany in the South and East to Kalgoorlie. For other areas of Western Australia outside of the SWIS please contact Horizon Power.

What you need to know
The Synergy Large Business Demand HV tariff is an On/Off peak tariff, generally suitable for large energy businesses that:
  • Use more than 50% of electricity during off-peak periods, have a load factor of 50% and consume more than 1,850 units per day


Eligible business customers have electricity supplied at high voltage (6.6kV, 11kV, 22kV or 33kV), combined with a moderate to high load factor. The premises must also use 50,000 units or more per annum, or 137 units or more on average per day. Compatible meters are required.

Item Price inc. GST
Minimum charge 733.4943 dollars per day
Demand charge 129.2265 cents per day multiplied by maximum demand - refer below
Electricity charge - peak 18.8935 cents per unit
Electricity charge - off peak 12.5654 cents per unit
Power factor charge* 53.5672 cents per unit
The maximum demand multiplier is either the on peak half-hourly maximum demand, or 30% of the off-peak half-hourly maximum demand (whichever is greater).
* Synergy reserves the right to levy a customer a power factor charge per day per kVAR for the kVAR necessary to improve the power factor to 0.8 lagging in any period during which the power factor at the time of the customer’s maximum demand is less than 0.8.
Compatible with
Data services

Data services

Did you know you can access essential energy reports and forecasts through your account manager or self-monitor your energy consumption in My Account?

Find out more
Demand respond

Demand response

Are you able to temporarily reduce your energy demand? You can earn money by controlling your business's energy use. Contact your account manager or call 13 13 54.

Find out more

Renewable energy systems

Installing a solar or wind system to self-generate? You can register your business’s renewable energy system online, in just a few minutes.

Register now
Other fees & charges
Other fees and charges may apply. All prices listed below are correct as at 1 March 2022 and are subject to change.
Fees & charges Price inc. GST
Account establishment fee $ 37.20
Cheque dishonour fee $ 2.55
Credit/debit card transaction fee - American Express 0.84 %
Credit card transaction fee - MasterCard 0.73 %
Debit card transaction fee - MasterCard 0.31 %
Credit card transaction fee - Visa 0.89 %
Debit card transaction fee - Visa 0.38 %
Direct debit dishonour fee $ 2.55
Disconnection of overhead house/premises service fee following illegal re-connection $ 194.00
Meter reprogram fee $ 95.70
Meter reconfiguration fee - remote $ 34.00
Meter testing fee (refunded if meter is faulty) $ 336.15
Over the counter transaction fee $ 2.10
Overdue account notice fee (GST doesn't apply) $ 6.15
Paper based bill fee $ 1.20
Reconnection fee $ 31.10
Rejected payment/dishonour fee (payment made at Australia Post) $ 29.00
Supply abolishment fee $ 484.00
Distributed Energy Buyback Scheme administration fee $ 21.90
Distributed Energy System administration fee $ 21.90
Special meter reading fee $ 27.90
Special meter reading fee - remote $ 17.60
Subsidiary electricity meter rental fee. (Not available to customers on R1, R3, S1 or T1 tariffs) $ 0.1597 per day
Meter upgrade fee $ 95.70

Take the next step. Find out how we can help find the right energy solution for your complex energy needs

Talk to an energy expert

We understand running a large business requires full-time attention, that’s why we have dedicated account managers who get to know your business and its needs. 

If you'd prefer to pick up the phone - call us on 13 13 54 (7am - 7pm Monday to Friday) and we'll connect you to one of our experts below.

Andrew Williams

Retail Education, Health & Government

With over 15 years’ experience in account management and business development, Andrew puts a strong focus on relationship management.

Email Andrew

Gary Petersen

Heavy Industry

Gary’s 25 years’ experience in the WA energy market has seen him successfully negotiate gas and electricity contracts in this highly competitive market.

Email Gary

Graeme Ross

Heavy Industry, Telecommunications & Government

Graeme has been in the energy industry for over 12 years and has extensive knowledge of both gas and electricity.

Email Graeme

Please tell us about yourself

All fields required unless indicated as optional.

Submit meter request

You will need to complete and return this meter request form to:

Business Sales Support (T1)
GPO Box K851 
Perth WA 6842

Download Large Business Demand HV Metering Request form