Large business tariffs
Explore our large business tariffs and find the option that delivers the best value for the way your business uses energy.
Find the right tariff in minutes
Instantly see which tariff could lower your energy bills. Log in or register for My Account to compare tariffs based on your energy use. Simply click ‘Usage and Metering’, then ‘Compare Tariffs’.
Heads up, you’ll need a smart meter installed for at least 12 months to use our comparison tool. Don’t have a smart meter yet? Request one online.
How large business tariffs work
Large business tariffs are designed for customers with significant energy usage and demand.
Depending on your connection type, and usage profile, your tariff may include:
- Usage charges This is your total usage for the billing period. You pay for each kWh used. This can be charged at a flat rate or based on ‘time of use’ pricing, meaning the cost will vary depending on the days and times when power was used.
- Demand charges Demand is the highest amount of electricity your business uses at any one time. It’s measured over 30-minute periods, and your demand charge is based on the single highest spike during your billing cycle – not your total usage. Managing when and how equipment operates can help reduce demand spikes, and potentially lower costs. Demand will be calculated as either kVA or kW - this will depend on the metering installed at the site.
- Service fee A daily fee that helps cover the cost of supplying your service. This includes building and maintaining transmission and powerlines, billing and administration.
Other additional charge types, such as connection charges, may apply depending on the type of tariff connected.
Large business tariff prices
Time of Use and Demand Tariffs 44A, 50B and 49
Current rates from 1 July 2025. All prices include GST.
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| Tariff | Tariff type | Best for | Usage rates | Demand rates | Timeframes | Service fee |
|---|---|---|---|---|---|---|
| 44A | Demand | Businesses wanting simple demand charging with a single usage rate | All usage: $0.21128/kWh | $25.36600/kVA (threshold 35 kVA) | N/A single rate usage; demand charge applies without TOU windows | $62.40489/day |
| 50B | Time of use demand | Businesses able to shift load outside 5–8pm peak | Peak: $0.18897/kWh Shoulder: $0.21746/kWh Off peak: $0.18897/kWh | Peak: $25.36600/kVA or $28.18420/kW Shoulder: $9.38520/kVA or $10.42800/kW | Peak: Off-peak : Shoulder: All other times | $57.21602/day |
| 49 | Time of use | May suit businesses that want to avoid demand charges, but the higher daily service fee and peak/shoulder usage costs should be considered. | Peak: $0.45726/kWh Shoulder: $0.40360/kWh Off peak: $0.18897/kWh | N/A | Peak: 5-8pm weekdays Off-peak : Shoulder: All other times | $300.18072/day |
Inclining block tariff
Tariff 43
This tariff has a daily service fee and an inclining usage structure. There are increased usage charges once annual usage exceeds 97 MWh.
Note: This is a 'closed' tariff and is only automatically assigned to customers who don't have a smart meter that measures maximum kVA demand. NMIs can remain on this tariff until the meter is either replaced/upgraded.
Eligibility is determined by the distribution business.
| From 1 July 2025 - Current rate | COST |
|---|---|
| Usage per kWh - up to 97,000 kWh per annum | $0.23172 |
| Usage per kWh - above 97,000 kWh per annum | $0.20792 |
| Service fee per day | $62.40489 |
High voltage CAC demand tariffs
A Connection Asset Customer (CAC) is a large business customer who is connected to the distribution network at a minimum nominal voltage of 11kV.
All CAC tariffs include usage + demand + capacity + connection + service fees.
These tariffs only apply for customers classified as CAC and supplied at 11kV, 22kV, 33kV or 66kV.
High voltage CAC demand tariffs - 51 series
Current rates from 1 July 2025. All prices include GST.
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| Tariff | Connection type | Usage rates | Demand & capacity charges | Connection charge | Service fee |
|---|---|---|---|---|---|
| 51A | 66 kV | $0.16563/kWh | Demand: $4.85540/kVA Capacity: $3.94460/kVA | $9.16410/unit/day | $282.21905/day |
| 51B | 33 kV | $0.16563/kWh | Demand: $5.02150/kVA Capacity: $5.14690/kVA | $9.16410/unit/day | $188.14375/day |
| 51C | 11/22 kV (bus) | $0.16563/kWh | Demand: $6.10610/kVA Capacity: $5.79260/kVA | $9.16410/unit/day | $162.05065/day |
| 51D | 11/22 kV (line) | $0.16563/kWh | Demand: $12.26720/kVA Capacity: $10.37410/kVA | $9.16410/unit/day | $152.68415/day |
Previous rates from 1 July 2024. All prices include GST.
| Tariff | Connection type | Usage rates | Demand & capacity charges | Connection charge | Service fee |
|---|---|---|---|---|---|
| 51A | 66 kV | $0.16456/kWh | Demand: $4.65300/kVA Capacity: $4.04360/kVA | $8.14220/unit/day | $242.88017/day |
| 51B | 33 kV | $0.16456/kWh | Demand: $4.81800/kVA Capacity: $4.84990/kVA | $8.14220/unit/day | $173.70337/day |
| 51C | 11/22 kV (bus) | $0.16456/kWh | Demand: $5.85640/kVA Capacity: $5.53190/kVA | $8.14220/unit/day | $158.21207/day |
| 51D | 11/22 kV (line) | $0.16456/kWh | Demand: $11.78100/kVA Capacity: $10.35210/kVA | $8.14220/unit/day | $152.04987/day |
High voltage time of use demand tariffs – 52-series
Current rates from 1 July 2025. All prices include GST.
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| Tariff | Connection type | Usage rates | Demand rates kVA | Demand rates kW | Timeframes | Connection charge | Service fee |
|---|---|---|---|---|---|---|---|
| 52D | 66 kV | $0.15029/ kWh | Peak: $6.69680 Shoulder: $4.01830 | $2.53220/kW | Peak: 5–8 pm weekdays Off peak: 11 am–1 pm daily Shoulder: all other times | $9.16410 per unit/day | $609.44705/day |
| 52E | 33 kV | $0.15029/ kWh | Peak: $6.69680 Shoulder: $4.01830 | $2.53220/kW | Peak: 5–8 pm weekdays Off peak: 11 am–1 pm daily Shoulder: all other times | $9.16410 per unit/day | $327.22005/day |
| 52F | Bus connection | $0.15029/ kWh | Peak: $14.78620 Shoulder: $8.87260 | $2.53220/kW | Peak: 5–8 pm weekdays Off peak: 11 am–1 pm daily Shoulder: all other times | $9.16410 per unit/day | $248.94075/day |
| 52G | Line connection | $0.15029/ kWh | Peak: $21.90540 Shoulder: $13.14280 | $2.53220/kW | Peak: 5–8 pm weekdays · Off peak: 11 am–1 pm daily Shoulder: all other times | $9.16410 per unit/day | $220.84345/day |
Individually Calculated Customer (ICC) – specific tariff
Individually Calculated Customer (ICC) – specific tariff
This high-voltage tariff is for Individually Calculated Customers where the:
- AER approved site-specific network charges are passed through to customers and
- Non-network components are chargeable as defined in Part 2 of the QCA tariff schedule.
You're charged by the Retailer a flat rate all year for the electricity you use, along with demand, capacity, daily supply charges. All rates include GST.
Please note: Network charges are not included in this schedule as they are "as quoted" and specific to the individual site.
| From 1 July 2025 - Current rate | COST |
|---|---|
| Demand charge kVA | $0.27720 |
| Capacity charge kVA | $0.22440 |
| All usage per kWh | $0.13816 |
| Service fee per day | $31.65302 |
| From 1 July 2024 - Previous rate | COST |
|---|---|
| Demand charge kVA | $0.26510 |
| Capacity charge kVA | $0.23100 |
| All usage per kWh | $0.14044 |
| Service fee per day | $30.79229 |
Demand explained
Most large business tariffs are demand-based, but the way demand charges apply can vary between tariffs. Your electricity demand is based on your highest electricity use in a 30-minute window during set hours, days or months.
Most customers on a demand-based tariff will be charged using demand calculated in kilovolt amperes, or kVA, rather than kWs. Measuring demand in kVA takes into account the real power used by the site, plus the extra power that may be required due to the site having a poor power factor. For more information, see the ‘kVa demand charging explained’ section below.
What is kVA demand charging?
There are a couple of ways to measure electricity demand:
- kW (kilowatts) - that’s the active power doing the work, like driving your equipment
- kVA (kilovolt-amperes) - that’s the total power supplied, including active power and reactive power (the extra oomph motors and similar gear need).
For big industrial gear like motors, kVA is the better measure because it shows the whole picture of the power you’re pulling.
So, kVA demand charges make sure customers with heavy-duty equipment pay for the actual electricity they use - fair and square.
Refer to Ergon Energy Network’s power factor web page for more information on the difference between kVA and kW and how to improve power factor to help reduce your bills.
Why does kVA demand charging matter?
If your industrial gear has a low power factor (meaning it leans heavy on reactive power), you’ll pull more energy in kVA for the same amount of work in kW.
That extra pull puts strain on the network, so charges are based on kVA to encourage using power efficiently - and keeping the system happy for everyone.
How is kVA demand charged?
The demand charge for a month is based on the 30-minute period within the demand window (e.g. 4pm-9pm) during which you use the most electricity. For large businesses, demand is measured in kVA and billed using the following formula:
Highest kVA × daily rate × number of days in billing period
How the daily rate is set: The demand charge is displayed on a monthly basis, but billed based on the number of days in the billing period. To convert from a monthly to daily basis, the monthly calculation needs to be multiplied by 12 and then divided by 365.25.
Other business tariffs
Business load control tariffs 60A and 60B
For Tariff 60A and 60B, the best fit is generally non-essential interruptible loads – equipment that can tolerate up to 6 hours of outages per day without notice and either ‘coast’ through the interruption or be time-shifted.
Potential business examples:
- Water pumps (e.g. Irrigation, bores and transfer systems.)
- EV charging stations (particularly fleet charging that can occur overnight or outside peak hours.)
- Pool pumps for aquatic centres, resorts, caravan parks, hotels, etc.
- Hot water systems.
- Other non-essential equipment that can handle interruptions without notice.
Tariff 60A & 60B Prices
Current rates from 1 July 2025. All prices include GST.
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| Tariff | Power access | Tariff type | Usage rates | Service fee |
|---|---|---|---|---|
| 60A | At least 18 hours/day | A primary load control tariff suited to business operations/equipment that can manage up to 6 hours of outages per day without notification. | $0.24246/kWh | $57.70349 |
| 60B | At least 18 hours/day | A secondary load control tariff suited to business operations/equipment that can manage up to 6 hours of outages per day without notification when used in conjunction with a continuous supply-tariff. | $0.24246/kWh | N/A |
Previous rates from 1 July 2024. All prices include GST.
| Tariff | Usage rates | Service fee |
|---|---|---|
| 60A | $0.27488/kWh | $48.43120 |
| 60B | $0.27488/kWh | N/A |
Is Tariff 60A or 60B right for your business?
Use this quick guide to see if Tariff 60A or 60B could work for you
- Check your area – Tariffs 60A and 60B are only available in eligible areas of the Ergon network where load control is supported. To check if you’re site is eligible, visit Ergon Network’s Load Control for Business webpage.
- Make sure interruptions are OK - Tariff 60A and 60B can be switched off at times. Ask yourself: Can your equipment turn off and on safely? Can your business handle short outages? If not, this tariff may not be the right fit.
- Talk to your electrician - You don’t need to know the technical details. Ask your electrician to: Check your equipment is suitable for Tariff 60A or 60B. Confirm whether a contactor is needed. If a contractor is required, your electrician will organise and install it (costs apply).
For more information, visit Ergon Network’s Load Control for Business webpage.
Obsolete large business tariffs
These are legacy business tariffs which remain available only to existing customers until their expiry date. These include tariffs:
Tariff 44 - obsolete
This tariff has a charge for the total amount of electricity used, plus a demand charge and a daily supply charge. All rates include GST.
This tariff was made obsolete on 1 July 2025. Only customers on this tariff on 30 June 2025 may remain on this tariff. This tariff will expire on 30 June 2026.
Demand threshold: 30 kW / 35 kVA
| From 1 July 2025 - Current Rate | COST |
|---|---|
| Demand charge kW | $32.42030 |
| Demand charge kVA | $29.17640 |
| All usage per kWh | $0.21002 |
| Service fee per day | $52.03627 |
Tariff 45 - obsolete
This tariff has a charge for the total amount of electricity used, plus a demand charge and a daily supply charge. All rates include GST.
This tariff was made obsolete on 1 July 2025. Only customers on this tariff on 30 June 2025 may remain on this tariff. This tariff will expire on 30 June 2026.
Demand threshold: 120 kW / 135 kVA
| From 1 July 2025 - Current Rate | COST |
|---|---|
| Demand charge kW | $32.11560 |
| Demand charge kVA | $28.90360 |
| All usage per kWh | $0.21010 |
| Service fee per day | $165.79713 |
Tariff 46 - obsolete
This tariff was made obsolete on 1 July 2025. Only customers on this tariff on 30 June 2025 may remain on this tariff. This tariff will expire on 30 June 2026.
Demand threshold: 400 kW / 450 kVA
| From 1 July 2025 - Current Rate | COST |
|---|---|
| Demand charge kW | $31.44790 |
| Demand charge kVA | $28.30300 |
| All usage per kWh | $0.20468 |
| Service fee per day | $434.19915 |
Tariff 50 - obsolete
This tariff was made obsolete on 1 July 2022. Only customers on this tariff on 30 June 2022 may remain on this tariff. This tariff will expire on 30 June 2026.
Peak usage period: Dec-Feb
Peak demand period: 10am-8pm weekdays Dec-Feb
Demand threshold: 20kW Dec-Feb, 40kW Mar-Nov
| From 1 July 2025 - Current Rate | COST |
|---|---|
| Peak demand per kW | $93.54290 |
| Peak usage per kWh | $0.18084 |
| Off-peak demand per kW | $13.78850 |
| Off-peak usage per kWh | $0.25219 |
| Service fee per day | $46.32769 |
Tariff 50A - obsolete
This tariff was made obsolete on 1 July 2025. Only customers on this tariff on 30 June 2025 may remain on this tariff. This tariff will expire on 30 June 2026.
Peak Demand Period: 4pm to 9pm weekdays
| From 1 July 2025 - Current Rate | COST |
|---|---|
| All usage per kWh | $0.21663 |
| Peak demand charge kVA | $20.76580 |
| Excess demand charge kVA | $2.15270 |
| Service fee per day | $210.00203 |
Tariff 52A - obsolete
This high-voltage seasonal time of use demand tariff is for Connection Asset Customers supplied at 33 or 66kV.
This tariff was made obsolete on 1 July 2025. Only customers on this tariff on 30 June 2025 may remain on this tariff. This tariff will expire on 30 June 2026.
You're charged a peak rate for electricity usage at all times during summer, connection and daily supply charges. Time of use demand charges apply during set hours on weekdays in summer and capacity charges apply at all other times. All rates include GST.
Peak period: Dec-Feb
Demand period: 10am-8pm weekdays Dec-Feb
Capacity period: all times outside the demand period
| From 1 July 2025 - Current Rate | COST |
|---|---|
| Demand charge kVA | $19.28850 |
| Capacity charge kVA | $7.72860 |
| Peak usage kWh | $0.15198 |
| Off-peak usage kWh | $0.21049 |
| Connection charge per unit per day | $8.66360 |
| Service fee per day | $129.00276 |
Tariff 52B - obsolete
This high-voltage seasonal time of use demand tariff is for Connection Asset Customers supplied on an 11 or 22kV bus.
This tariff was made obsolete on 1 July 2025. Only customers on this tariff on 30 June 2025 may remain on this tariff. This tariff will expire on 30 June 2026.
You're charged a peak rate for electricity usage at all times during summer, connection and daily supply charges. Time of use demand charges apply during set hours on weekdays in summer and capacity charges apply at all other times. All rates include GST.
Peak period: Dec-Feb
Demand period: 10am-8pm weekdays Dec-Feb
Capacity period: all times outside the demand period
| From 1 July 2025 - Current Rate | COST |
|---|---|
| Demand charge kVA | $61.55160 |
| Capacity charge kVA | $5.54510 |
| Peak usage kWh | $0.15198 |
| Off-peak usage kWh | $0.21049 |
| Connection charge per unit per day | $8.66360 |
| Service fee per day | $129.00276 |
Tariff 52C - obsolete
This high-voltage seasonal time of use demand tariff is for Connection Asset Customers supplied on an 11 or 22kV line.
This tariff was made obsolete on 1 July 2025. Only customers on this tariff on 30 June 2025 may remain on this tariff. This tariff will expire on 30 June 2026.
You're charged a peak rate for electricity usage at all times during summer, connection and daily supply charges. Time of use demand charges apply during set hours on weekdays in summer and capacity charges apply at all other times. All rates include GST.
Peak period: Dec-Feb
Demand period: 10am-8pm weekdays Dec-Feb
Capacity period: all times outside the demand period
| From 1 July 2025 - Current Rate | COST |
|---|---|
| Demand charge kVA | $73.09280 |
| Capacity charge kVA | $9.91210 |
| Peak usage kWh | $0.15198 |
| Off-peak usage kWh | $0.21049 |
| Connection charge per unit per day | $8.66360 |
| Service fee per day | $129.00276 |