Embedded generation

Generators connected to our distribution network are called "Embedded Generators" (EGs). These generators are embedded within our distribution network and not directly connected to our transmission network.

The entity that owns, operates or controls an embedded generating unit is called the Embedded Generator.

There are different types of embedded generators in our network and are as follows:

  • Solar Photovoltaic
  • Bagasse (from Land fill sites)
  • Wind turbines
  • Gas
  • Micro hydro

The typical capacity varies from 1 kW domestic solar photovoltaic generator to a 20 MW Solar photovoltaic system.

The process for connecting an Embedded Generator to our network depends mainly on the capacity. The capacity is categorised into three categories as micro, medium and large and Table below indicates the capacities and type of embedded generators considered in the category.

Network Connection Options

Category

Capacity

Network Access

Type of Generator

Micro

Less than 30kW

230V ~ 400 V – Low Voltage Network

Solar PV

Micro Wind (Future)

Micro Gas (Future)

Medium

30kW – 200kW

400 V – Low Voltage Network

 

Any

 

 

Large

 

200kW – 1500kW

1500kW – 5000kW

11kV to 132 kV High Voltage Network

>5000kW

 

Micro generation up to 30 kW

Generating systems up to 30 kW are otherwise referred to as micro embedded generators. To connect a micro generating system, please refer to Connecting a residential solar PV system. The process for connecting this type of generator is aligned to our customer supply connections process.

These applications are often made by your system retailer or installer, but, as the electricity account holder, you'll still need to give your consent.

Medium and Large Scale embedded generators

These generators vary as to the source of their generation. Common types include solar, landfill generation, diesel generation used for back up supply and micro hydro. The process for connecting these is aligned to our embedded generation customer connections process.

The embedded generators fall in to medium and large scale categories may require connection to ActewAGL Low Voltage or High Voltage network. Please refer to Table – Network Connection Options for the type of connection required.

ActewAGL’s guidelines for embedded generation connection to Low Voltage (LV) or High Voltage (HV) outline the requirements for embedded synchronous generators and inverter-based systems with a total nameplate rating above 30 kW at a single connection point. It also provides information about your rights and obligations when connecting to, and interfacing with, ActewAGL network.

To access the information relating these embedded generators, first select the capacity and the category and then access the Information Pack.

Medium scale embedded generators – above 30 kW and up to 200 kW

The embedded generators fall in to this category may require connection to ActewAGL Low Voltage network. Please refer to Table – Network Connection Options for the type of connection required.
This category is in place for ACT government’s medium scale Feed in Tariff (FiT) schemes however any embedded generator within this capacity will be treated under this category.

Further information on the process to connect is available in Information Pack for Medium Scale Embedded Generation. The enquiry and application forms are provided in the Information Pack however you can access these forms directly from the links below.

Embedded Generation Customer Connection Enquiry Form
Embedded Generation Customer Connection Application Form
Information pack for embedded generation greater than 30kW less than 5,000kW

Large scale embedded generators 200 kW and up to 5,000 kW

The embedded generators fall in to this category may require connection to ActewAGL Low Voltage or High Voltage network. Please refer to Table – Network Connection Options for the type of connection required.

The Australian Energy Market Commission (AEMC) introduced an amendment to Chapter 5 of the NER, which became effective on 1 March 2015. All embedded generator proponents whose generating systems do not benefit from the standing exemption from registration with AEMO (which generally applies to generating systems up to 5,000 kW are required to use Chapter 5 when seeking to connect to a distribution network. Further information on the process to connect is available in Information Pack Large Scale Embedded Generation < 5000kW. The enquiry and application forms are provided in the Information Pack however you can access these forms directly from the links below.

Embedded Generation Customer Connection Enquiry Form
Embedded Generation Customer Connection Application Form
Information pack for embedded generation greater than 30kW less than 5,000kW

Large scale embedded generators 5,000 kW and above

These generators only get connection to ActewAGL’s High Voltage network.

The Australian Energy Market Commission (AEMC) introduced an amendment to Chapter 5 of the NER, which became effective on 1 October 2014. All embedded generator proponents whose generating systems do not benefit from the standing exemption from registration with AEMO (which generally applies to generating systems up to 5,000 kW) are required to use Chapter 5 when seeking to connect to a distribution network. Further information on the process to connect is available in Information Pack Large Scale Embedded Generation > 5000kW. The enquiry and application forms are provided in the Information Pack however you can access these forms directly from below links.

Embedded Generation Customer Connection Enquiry Form
Embedded Generation Customer Connection Application Form
Information pack for embedded generation greater than 5,000kW

Get in touch

Do you have a specific question about your major connection?

If so, please contact our Account Manager – Major Customers at embeddedgeneration@actewagl.com.au or speak to our Account Manager - Major Customers on 02 6293 5844.

Footnote
1 For systems above 30 kVA the nameplate rating is shown in kW due to an assumed Power Factor of unity.

Guidelines and reference documents

  1. Requirements for Embedded Generation Connections up to 5MW
  2. Technical performance requirements for the connection of large scale embedded generators to ActewAGL’s network
  3. Project register of embedded generation above 5MW
  4. Electricity network schedule of charges
  5. Information pack for embedded generation greater than 30kW less than 5,000kW
  6. Information pack for embedded generation greater than 5,000kW
  7. Generator Connection Agreement (GCA) Template