Solar and embedded generation
By installing a generating system like solar, you are producing electricity and potentially exporting any excess back into the grid. This means you have legal and other obligations that differ from customers who simply use electricity. For this reason, you need small or large embedded generation approval from SA Power Networks. Following this, you will need to organise a new import/export electricity meter through your nominated Retailer.
Please note that SA Power Networks does not guarantee your ability to export electricity into its distribution system.
Small embedded generators
Small embedded generators (SEGs) are defined as all inverter connected generator installations with an inverter capacity of up to 30kW.
For single phase inverter connected generating systems, the maximum you can export back to the network is 5kW, and for three phase systems it’s 30kW with an imbalance between the phases no greater than 5kW
More information about installation requirements can be found in TS129 Small Inverter Energy Systems (IES) - Capacity not exceeding 30kW and AS/NZS 4777 part 1 and 2.
To lodge your application simply click on the button below:
If you have an enquiry and would like to speak with a member of our Customer Relations team please call 1300 665 913 or contact us at email@example.com
Large embedded generators
Large embedded generators (LEGs) are defined as having an inverter capacity greater than 30kW.
Large embedded generator installations, whether export or non-export, connected to operate in parallel with the SA Power Networks' distribution network, must be assessed by us for suitability for connection and compliance in all respects with SA Power Networks' technical standards.
Three-phase systems shall have a balanced output with the imbalance between the phases being no greater than 5kW. All installations connected via inverters with an inverter capacity over 30kW and up to 200kW must comply with the requirements outlined in TS130 Inverter Energy Systems (IES) above 30kW and up to or equal to 200kW and AS/NZS 4777 part 1 and 2.
All other installations must comply with the requirements outlined below:
- TS131 Inverter Energy Systems (IES) above 200kW or Any Size Rotating Generating Systems – (dated January 2015)
- TS131 Inverter Energy Systems (IES) above 200kW or Any Size Rotating Generating Systems – (dated March 2018)
- NICC270 Guide for Connecting Large Embedded Generation
To enable us to process your connection, you must first make a connection enquiry with us. This can be done by completing the appropriate form shown below:
- Application to Connect Form - Large Solar above 30kW and up to or equal to 200kW
- Enquiry Form - Large Embedded Generation over 200kW
Related Documents (LEG)
Terms & Conditions
Examples of our terms and conditions which are applicable to Generating Systems 5MW and above, are shown below:
Register of completed projects
Each year, SA Power Networks produces a Register of Completed Embedded Generation Projects in accordance with the requirements of Section 5.4.5 of the National Electricity Rules (NER).
The register contains a list of completed embedded generation projects that meet the following criteria:
- Embedded Generating Units owned, operated and controlled by a Generator or by a person who was required to apply to AEMO for an exemption from the requirement to register as a Generator; and
- Generating Systems comprising of embedded Generating Units with total nameplate capacity greater than 5MW; and
- Generating Systems connected to SA Power Networks' distribution network with the 5 year period preceding the date of publication of the register.
The register includes, but is not limited to, the following information:
- Technology of the Generating Unit(s), including make and model;
- Maximum power generation capacity of all embedded Generating Units;
- Contribution to fault levels;
- Size and rating of relevant transformers;
- Single line diagrams of the connection arrangement;
- Protection systems and communications systems;
- Voltage control and reactive power capability; and
- Details relevant to the specific location of the facility.
Please note that this register does not publish any confidential information as part of, or in connection with, the register.
SA Power Networks will update this register each year by 1 November.