What is Embedded Generation? 

Embedded Generation (EG) involves any form of onsite generation installed on your premise, which may require a connection to the Jemena Electricity Distribution Network. 

Types of Embedded Generation include:   

Inverter Energy Systems (IES):   

• Solar Photovoltaic Systems. 
• Battery Storage (when exporting to the network). 
• Wind generators. 

Non-IES (rotating):  

• Synchronous machine (Diesel generators, Gas generators). 
• Induction machine.  

All generation systems that require an connection to the Distribution Network must be reviewed and approved by Jemena prior to connection and operation. This is to ensure safe and compliant operation of the Jemena network. 

Victoria Emergency Backstop Mechanism

The Victorian Government is introducing an Emergency Backstop Mechanism (EBM) for inverter-based photovoltaic Embedded Generation systems. This Mechanism requires Jemena to switch off or curtail Photovoltaic Systems exporting to the Distribution Network when instructed to do so by the Australian Energy Market Operator (AEMO). Stage 1 of the EBM was implemented in October 2023 and requires all new, replacement and upgraded applications for Photovoltaic Systems with a generating capacity greater than 200kVA (~200kW- large systems) to be equipped with remote disconnection capability. 

Stage 2 will come into effect on 1 October 2024 and extends the above requirement to all new, replacement and upgraded systems with a generating capacity between 0kVa to 200kVA (small to medium size systems). Learn more about the Emergency Backstop Mechanism here.

New and alteration of existing Embedded Generation applications:  

From 1 October 2024, all customers, installers and electrical contractors are required to: 

1. Ensure any new or upgraded installation is compliant with the new Guideline.
2. Submit all new and alteration of existing Embedded Generation applications on the Jemena ‘Connect and manage my electricity’ portal. Please select ‘Approve My Generation or Battery Storage’.
3. Provide additional information during the application and commissioning process as requested by Jemena staff. The following checklist will provide a guide of information typically required in the application.  

Things you should know: 

All new installations and upgrades to existing Installations must be compliant with the requirements of the Technical Rules, AS/NZS 4777.1, 4777.2, AS/NZS 3000, and other relevant Standards, Laws and Good Industry Practice. Applicants must be pre-approved by Jemena before installing any devices at the premise intended to be connected to the Jemena Distribution Network.