Our GoodGrid program aims to reduce electricity use when demand is high.
The highest electricity demand happens on hot summer weekday afternoons, usually between 3pm and 7pm (AEDT).
We select between two and five high demand periods between 1 December and 31 March and ask participating businesses to reduce their electricity use. We call these CPD windows.
If your business is on a critical peak demand (CPD) tariff and you reduce your electricity use during the CPD windows, we will lower your CPD charges.
The GoodGrid program supports the broader community’s energy needs when energy demand is high. It also means the network can manage brief periods of high demand and increased network costs associated with significant infrastructure upgrades.
Note: in summer 2025/2026 we called four CPD days. We will use the average of those four maximum demand recordings to calculate your CPD charge from 1 April 2026 to 31 March 2027.
For detailed information about tariff structures, go to the Australian Energy Regulator website.
Notifications for Critical Peak Demand days
To avoid missing out on the GoodGrid program, provide your current contact details through our online form. If we have your contact details, we can send you an SMS in advance.
We recently upgraded our systems so you’ll need to complete the form even if you’ve previously provided your contact details.
If you don’t complete the form, we won’t be able to contact you about Critical Peak Demand days and you may miss the opportunity to take advantage of reducing your annual network charges.
Previous CPD days
Tuesday 27 January 2026 from 3pm to 7pm.
Friday 9 January 2026 from 3pm to 7pm.
Wednesday 7 January 2026 from 3pm to 7pm.
Thursday 18 December 2025 from 3pm to 7pm.
How we calculate your CPD charge
We record your maximum electricity demand during each of the CPD windows. We use the average of those maximum demand recordings to calculate your CPD charge.
We only measure your demand within the CPD window, which is usually between 3pm and 7pm AEDT (or 2pm and 6pm on your meter).
We measure the maximum electricity demand of all our customers on CPD tariffs during the CPD windows.
The CPD charge is a component of the network costs you are charged on your unbundled power bill.
When you reduce your demand during the CPD windows, you lower your CPD component and save money on network charges.
Get the most out of GoodGrid for your business
There are a few ways that you can maximise the benefits for your business:
Respond early
Make sure you reduce your energy demand for the entire CPD window, so your maximum reading is lower. Respond early so your demand is lowered before the window starts and only returns to normal after the window ends.
Participate every year
GoodGrid is an annual program. We recalculate the CPD component of your network charges every year, based on the CPD windows.
Reduce your energy demand in each CPD window from December to March and your CPD charge will show that reduction from 1 April to 31 March.
Stay informed
We announce CPD days by SMS, one business day before the start of each window. If we cancel a CPD day, we will send you another SMS to let you know.