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Critical Peak Demand Tariff

If you’re a large business customer, our critical peak demand (CPD) tariff program provides the opportunity to reduce your electricity costs by limiting use on “peak days”.

Our CPD tariff applies if your electricity use is more than 160 megawatt hours (MWh) per annum, and you’re on one of the following annual tariffs: 

NSP56, NSP75, NSP76, NSP77, NSP78, NSP81, NSP82, NSP83, NSP91, NSP94, NSP95

For more information about our CPD tariff program, please call us on 1300 451 331.


CPD days

Each year we nominate five CPD days and calculate your critical peak demand charge based on the average maximum kVA recorded on the five nominated peak demand weekdays during 3:00-7:00pm AEDT (i.e. 'daylight savings time’). This will form the ‘demand – critical peak component’ of your tariff for the next 12 months.

Our nominated CPD days occur from 1 December to 31 March and coincide with extreme temperatures or consecutive days of hot weather.

On these CPD days, we encourage our customers to minimise electricity use or seek alternative supply sources.

CPD notifications

AusNet Services will notify you of nominated CPD days by SMS message. To register for these SMS notifications, please send your national meter identifier (NMI) reference number(s) by SMS to 0418 176 593.

Our SMS notifications will advise you of the following:

Potential CPD days – nominated when the Bureau of Meteorology (BOM) forecasts extreme temperatures or consecutive days of hot weather.
  • if possible, we will notify you up to 7 days before a potential CPD day.

Declared CPD days – official announcement of a CPD day.
  • we will notify you by 2:00pm AEDT (i.e. ‘daylight savings time’) on the day before a declared CPD day.


For more information about potential and declared CPD days, please also check our Current CPD schedule below.

NOTE: due to changing weather conditions, potential CPD days may not always become declared CPD days.

Current CPD schedule

Confirmed 2018/19 CPD days:

  • Thursday 6 December 2018
  • Friday 7 December 2018
  • Tuesday 15 January 2019
  • Thursday 24 January 2019
  • Friday 25 January 2019

Previous CPD days:









Day 1

7 Mar

15 Feb

6 Feb

19 Dec

22 Jan

17 Dec

17 Jan

 13 Dec

Day 2

11 Mar

16 Feb

7 Feb

16 Jan

11 Feb

22 Feb

16 Jan

 19 Jan

Day 3

18 Mar

24 Feb

18 Feb

21 Mar

11 Mar

23 Feb

30 Jan

 7 Feb

Day 4

24 Mar

20 Mar

6 Mar

27 Mar

19 Mar

2 Mar

9 Feb

 9 Mar

Day 5

29 Mar

30 Mar

30 Mar

31 Mar

31 Mar

23 Mar

9 Mar

 23 Mar