Search
Regulatory investment test
The Regulatory Investment Test (RIT) is a cost benefit analysis overseen by the Australian Energy Regulator (AER). The purpose of a RIT is to identify the preferred network or non-network option to deliver the greatest economic benefit to market. The process also ensures investment decisions are in the long term interests of customers.
It assesses the economic and technical impact of major network investments in the national energy market above $6 million.
There are three broad stages we follow if a RIT is required for investment*.
Current regulatory investment test projects
Access to historical RIT-T or RIT-D reports for closed projects can also be provided via email.
AusNet Services is applying the RIT to the following projects listed below:
Regulatory investment test for transmission |
||||
|
Identified Need |
Location |
Report |
Consultation Closes |
Status |
| Maintain Supply Reliability |
Shepparton Terminal Station |
Project Assessment Conclusions Report Project Assessment Draft Report Project Specification Consultation Report |
4 Nov 2021 23 Jul 2021 18 Mar 2021 |
Open Closed Closed |
| Maintain Supply Reliability |
Sydenham Terminal Station |
Project Assessment Draft Report Project Specification Consultation Report Project Assessment Conclusions Report |
4 Oct 2021 15 Mar 2021 |
Closed Closed |
|
Maintain Supply Reliability |
Cranbourne Terminal Station |
25 Sep 2020 |
Closed |
|
|
Corrective Action Reliability |
Horsham Terminal Station |
Project Assessment Draft Report |
15 Jun 2021 |
Closed |
Regulatory investment test for distribution |
||||
| Identified Need | Location |
Report |
Consultation Closes | Status |
| Service Constraints |
Maffra | Notice of Determination Report | N/A |
Closed |
| Service Constraints |
Bayswater | Notice of Determination Report | N/A |
Closed |
| Service Constraints |
Clyde North |
Non-Network Options Report |
27 August 2021 |
Closed |
|
Service Constraints |
Traralgon |
20 August 2021 |
Closed |
|
| Service Constraints | Warragul | Non-Network Options Report | 31 May 2021 | Closed |
| Service Constraints |
Watsonia | Notice of Determination Report | N/A | Deferred |
|
Service Constraints |
Thomastown |
21 July 2021 |
Deferred |
|
| Service Constraints |
Benalla |
Non-Network Options Report |
21 July 2021 | Deferred |
Consultations
To get involved in RIT projects, please contact AusNet Services via rittconsultations@ausnetservices.com.au
Further information is also available in the Energy Networks Australia RIT-T handbook.
Projects exempt from RIT
Under transitional provisions in the National Electricity Rules, the following in-flight projects are exempt from the Regulatory Investment Test.
|
Project name |
Location |
Scope of work summary |
Completion |
| North West Comms Network | MLTS, TGTS, HYTS, APD, HGTS, TRTS, MOPS | Install fibre cable between TGTS, HYTS and APD. Upgrade batteries at MLTS, TRTS, MOPS, TGTS and APD. Replace SDH/PDH with MPLS-TP equipment at MLTS, HGTS, MOPS, TGTS, HYTS, APD and TGTS. Install DWDM equipment at MLTS and HYTS. Migrate services to MPLS-TP. Decommission SDH/PDH equipment and radio sites. |
2024 |
| MD1000 RTU at Zone Substations | FTR, FGY, BWN, BGE, ELM, RWN, LDL, CLN, EPG, BRA, BN and BWA | Install and commission the RTU and local HMI. Connect RTU to all existing IEDs at these ZSS via their communication protocols e.g. DNP3, Modbus, IEC103 etc. Separate common alarms. Decommission existing RTU | 2023 |
| Power Station Closure Works | HWPS | Mandatory compliance works, including various civil and electrical works related with closure of power station | 2023 |
| Switchyard Redevelopment 220kV at Terminal Station | HWPS | Replace the remaining 220kV Bulk Oil Circuit Breakers and install remote operated isolators | 2022 |
| Power Station Rebuild | YPS | Replace 66/11kV transformer, circuit breakers and other primary equipment | 2022 |
| Redevelopment at Terminal Station | WMTS | Replace 220/66kV transformers, 220kV switch bays, 66kV switch bays and all protection and control systems. Retire two 220/22kV transformers and the 22 kV supply from WMTS | 2022 |
| Circuit Breakers 500kV at Terminal Station | HYTS | Replace deteriorated 500kV switchgear | 2022 |
| Static Var Compensator Control and Relays | ROTS | Install thyristors, controllers and cooling system on second SVC, and protection relay panels for both SVCs. Decommission old equipment. Replace reactors, capacitor cans, instrument transformers and faulty bus support insulators for both SVCs. Replace connections, and if found to be an issue, sections of bus-work |
2022 |
| CCTV Upgrades at Terminal Stations | DDTS, ROTS, KTS, SMTS, HWTS, LYPS, JLTS | Upgrade CCTV surveillance |
2022 |
| Primary and Secondary assets at Terminal Stations | TBTS, RCTS, TTS, MWTS, EPSY, LY | Replace 66kV CB CT and Isolators at all locations, 220kV CT CVTs at TBTS, EPSY, and 11kV and 22kV fuse isolators at RCTS and TBTS |
2022 |
| Circuit Breakers 500kV at Terminal Stations | LYPS, HWTS | Replace 500kV circuit breakers |
2021 |
| Circuit breakers 220/66kV at Terminal Station | FBTS | Replace B4 220/66kV transformer. Replace 220kV and 66kV circuit breakers |
2021 |
| REFCL Tranche 2 | RWN, ELM, FGY, WOTS, MOE, BGE, LDL, BDL | Install REFCL equipment at each zone substation |
2021 |