The above table relates to customers on the main electricity grid – refer to STNW3510 (PDF 836.1 kb) for further details including limits applicable to customers on the regional SWER network.

# Please note a hybrid inverter is assessed as both a solar and battery inverter from an AC inverter capacity perspective. Both a basic connection and a dynamic connection can only have a maximum 10 kVA hybrid inverter capacity approved to be installed on a single-phase connection.

^Customers can request a network study to be carried out (fee applies) if they wish to be considered for a negotiated connection agreement that may result in different inverter / export arrangements being approved.

For a single-phase connection, you can have up to 10 kVA solar inverter capacity plus 10 kVA battery inverter capacity.

For dynamic connections using a hybrid inverter, a lower total limit of 10 kVA applies. For example, if you have a 10 kVA hybrid inverter, capable of connecting solar and batteries, the combined inverter capacity limits of each technology (eg. solar and battery) cannot exceed 10 kVA in total.

For a three-phase connection the limit is 1500 kVA.

The majority of customers on the network will experience either minimal to no limiting of their solar system’s export, most of the time. Export limiting is more likely to happen on clear, sunny days around autumn and early spring where there is also less demand on the electricity network and/or where there is a large number of solar systems installed on the local network. Under a dynamic connection, once the system is registered and maintains a communication link with us, even when there is a need to reduce solar export, the premises will still be allowed to export 1.5 kW, unless there was a significant emergency event requiring all solar generation to be restricted.

We are working hard to deliver this capability and we hope to be able to provide this function soon.

Yes, we have customer friendly information on our Dynamic connections for homeowners & small business web page. We have also have this Dynamic Connections Factsheet (PDF 1017.0 kb) that we encourage installers to provide to their customers.

Subject to any requirements contained in the site-specific technical study, a dynamic connection on a dedicated transformer (TX) can have up to:

• Dynamic export up to 100% rating of the transformer
• Dynamic import up to 120% rating of the transformer
• Aggregate Inverter Energy Systems (IES) capacity up to 200% rating of the distribution
  transformer; where both PV and storage inverters are used. Note that PV inverters shall be limited to 120% of the distribution transformer capacity

in accordance with the requirements in STNW3511.

The Dynamic Operating Envelope (DOE) is calculated live and published to the proponent based on the Distribution Network capability at any point of time with a forecast of 24 hours given as a guide.

Please read our Dynamic Connections Factsheet - Dedicated Transformer Connections (PDF 312.4 kb) for how it works and some FAQs.