Small IES connections

Small Inverter Energy System (IES) connections include:

  • Inverter based connections up to and including 30 kVA
  • Distributed Energy Resource (DER) technologies such as solar PV, batteries and electric vehicles with vehicle-to-grid (V2G) or vehicle-to-building (V2B) capability.

Application for network connection of a Small IES

We encourage you to apply online via our Electrical Partners Portal for network connection of a Small IES.

If you'd prefer to make a hard copy application, download the Major Customer Connection Application form.

Connection Standard

On 18 December 2020 a new version of AS/NZS 4777.2 was released. AS/NZS 4777.2:2020 comes into effect 12 months from the release, on 18 December 2021. For more information about this change, please see our FAQs document (PDF 743.9 kb).

For information on the technical design and connection requirements for Small IES please refer to our STNW1170 Standard for Small IES Connections (PDF 1.2 mb). We encourage industry members involved in the connection of Small IES to read the standard to understand the rules, your obligations and the benefits. Customers wanting negotiated contract for sizes up to 30 kVA should design their connections for the technical requirements in STNW1174 Standard for LV EG Connections (PDF 1.4 mb) or STNW1175 Standard for HV EG Connections (PDF 1.1 mb).

We also recently released STNW3510 Dynamic Standard for Small IES Connections. (PDF 1.3 mb) Dynamic connections will be a new connection option soon in Queensland. For more information about these new dynamic connections please read our dynamic FAQs (PDF 678.0 kb).

Have any queries?

For Small IES queries related to connections, assessments or applications, please contact our Solar Team on 13 12 53.

For any queries about the Connection Standard or Small IES technology-specific queries, please email See our FAQs for the Standard for Small IES Connections for answers to frequently asked questions.