AusNet solar connections and export limits around Warragul

AusNet’s standard process for a Warragul home allows up to 10 kW of total inverter capacity per phase with up to 5 kW of export, or 3.5 kW of export on a Single Wire Earth Return line. Your installer must get AusNet pre-approval before the system goes in, and new systems under 30 kW must support AusNet’s emergency backstop. The export limit you are offered depends on the local substation at the time you apply.

This page explains AusNet’s rules for systems up to 30 kW, as published on AusNet’s up to 30 kW connection page on 31 October 2026. AusNet is the distributor for the Warragul area, but confirm the distributor named on your own power bill before relying on these rules.

What are AusNet’s solar export limits?

Supply	Total inverter capacity	Export limit
Single phase, standard line	Up to 10 kW (solar and battery combined)	Up to 5 kW
Single phase, SWER line	Up to 10 kW	Up to 3.5 kW
Three phase	Up to 30 kW across 3 phases	Up to 15 kW across 3 phases

Two details catch people out:

• AusNet counts inverters, not panels. Sizing is based on the total combined inverter rating of solar and battery inverters. A home with a 5 kW solar inverter and a 5 kW battery inverter already uses the full 10 kW per phase.
• The limit is an upper figure. AusNet says the available export capacity on a substation changes over time, so more solar on the same substation leaves less room for exports. Your approval states the figure that applies to you.

Some rural properties are supplied by a SWER line. Whether yours is one is a question for AusNet or your installer to confirm from the network records.

How does AusNet pre-approval work?

Your installer, solar retailer, or a registered electrical contractor acting as your authorised representative applies through AusNet’s online portal. For a system that fits the standard limits, the application is automatically generated with your pre-approved generation and export limit. Pre-approval is needed before installation. If you are also claiming the Solar Homes rebate, Solar Victoria lists network pre-approval as one of its steps before eligibility is approved (see the solar rebates guide).

AusNet sets out four steps:

1. Get approval.
2. Install the system.
3. Complete the post-application, which records what was actually installed.
4. Meter reconfiguration and readiness, so exports are measured.

Ask your provider who lodges the post-application and how long the meter step usually takes. Until the meter is set up for export, the arrangement for any surplus solar depends on your retailer and meter.

When does a system need a manual assessment?

AusNet charges for a manual assessment when a request:

• asks for more than the pre-approved offer
• goes above 10 kW of inverter capacity on a phase
• uses a generation type other than solar without a battery

AusNet’s page states that this assessment is paid. Your provider should tell you up front if the design needs one, because it adds time and cost before installation. Larger farm and business systems often fall into this group; the farm and business solar page covers those jobs.

What is the emergency backstop and CSIP-Aus?

AusNet requires systems under 30 kW to be solar emergency backstop enabled. In plain terms, the network must be able to reach the inverter and limit solar output in an emergency. AusNet requires this through a client that complies with the Common Smart Inverter Protocol Australia (CSIP-Aus), and the inverter must be on AusNet’s approved inverter list.

Requirement	What it means for you
CSIP-Aus compliant client	The inverter, or a device with it, can talk to AusNet over the internet
Inverter on AusNet’s approved list	Check the model in your quote against AusNet’s list before you sign
Volt-var and volt-watt modes	AusNet calls these power quality response modes, and the inverter must support both
Internet connection at the site	Needed for the backstop to work
No internet available	Apply for an exemption, and the system is held to a fixed 1 kW export

A fixed 1 kW export is a big cut for a household that planned to export several kW, so tell the provider early if your property has no reliable internet. That matters most on outlying properties.

The inverter must also meet AS/NZS 4777.2, the Australian standard for grid connected inverters, which a careful installer will confirm from the product listing.

Does replacing an inverter or adding a battery need a new application?

Yes in most cases. Because AusNet sizes on combined inverter capacity, a new or bigger inverter, or a battery with its own inverter, changes the numbers AusNet approved. A replacement inverter also has to meet today’s backstop and approved list rules, even if the old system was approved years ago under different settings. The jobs where this comes up most are covered on the solar inverter replacement page and the solar system upgrades page.

What should I ask before choosing an inverter size?

Because AusNet counts inverter capacity rather than panel capacity, the inverter rating is the number that decides whether your system fits the standard process. Before you accept a design, ask the provider:

• what the total inverter rating will be, including any battery inverter now or later
• how much room that leaves under the per phase limit for a future battery or EV charger
• what export limit the design assumes, and what happens to output if AusNet approves less
• whether the inverter can be set to a lower export figure without losing generation for your own use
• whether a three phase home should spread inverters across phases

A design that uses the whole single phase allowance on day one leaves nothing for a battery inverter later, which can force a manual assessment or a hybrid replacement down the track. Planning the total now can avoid a second round of approvals.

What feed-in tariff will I get?

AusNet controls connection and export limits. Your retailer pays for what you export. The Essential Services Commission stopped setting a minimum feed-in tariff for Victoria from 1 July 2025. Retailers now pick their own export rates, and the ESC says those rates cannot go below zero. With export limits and feed-in rates both outside your control, many households now design for more self-use, which is weighed up on the solar only versus solar and battery comparison.

What does a careful provider do about the network?

A provider who knows the AusNet process will usually:

• check your phase supply at the meter box and look for a SWER line on rural properties
• lodge the pre-approval and show you the approved export limit before installation day
• choose an inverter from AusNet’s approved list with CSIP-Aus support
• ask about internet at the site before designing for exports
• set the inverter’s export limit to match the approval
• lodge the post-application and explain the meter step

A provider should refuse to install before pre-approval is in place, and should not promise a fixed export figure before AusNet has issued one. If you want help working out what your property can export, you can send an AusNet export question with your enquiry.

Next step: give the provider what the network application needs

For a quote that matches AusNet’s rules, include your suburb or rural road, whether your supply is single or three phase (a photo of the meter box helps), any existing inverter and battery models with their kW ratings, whether the property has an internet connection the inverter can use, and roughly how much you hope to export. Then send a solar connection enquiry for your Warragul property. An independent local provider will check the network side, lodge the application and quote the work. How enquiries are passed on is explained on the about page.

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