RIT-D Excluded Projects
Regulatory test transitional exclusions
Effective as of 18 July 2017, the Australian Energy Market Commission (AEMC) has implemented a rule to increase the transparency of network service provider plans to retire, de-rate and replace network assets.
The rule requires us to include network asset retirement and de-rating information in our annual planning reports. It also extends the current regulatory investment test for distribution (RIT-D) frameworks to include network asset replacement expenditure.
From 18 September 2017, replacement capital expenditure incurred after this date must go through the RIT-D process, where the total cost of the most expensive credible option to address the network need is above the cost threshold (currently $5 million for distribution businesses).
To assist in the transition into this new arrangement, the AEMC provided an exemption for network asset replacement projects already committed or that would become committed by 30 January 2018. Projects which meet the criteria are excluded from the need to perform a RIT-D.
In accordance with the new rule, we must publish and maintain a list of excluded projects on our website, until all of these projects have been completed.
Excluded projects
Under the transitional arrangements, the following network asset replacement projects are excluded from the need to perform a RIT-D (refer to clause 11.99.5 of the National Electricity Rules).
| Project name | Description | Scheduled completion date |
|---|---|---|
| NGE Nudgee - Replace 2x33/11kV Transformers and 33kV Circuit Breakers | Replace the existing 2x33/11kV transformers, 33kV circuit breakers and obsolete relays at Nudgee zone substation. Construction already commenced. | March 2018 |
| SBY Salisbury - Replace 2x33/11kV Transformers and Replace 33kV UG Feeder F597/F598 | Replace 2x12MVA transformers with 1x15MVA transformer at Salisbury zone substation and replace RLA Rocklea – SBY Salisbury 33kV DCCT feeders F597 and F598, with new 33kV DCCT feeders, with one feeder energised at 11kV. Construction already commenced. | March 2018 |
| DBY Deception Bay - Replace 2x33/11kV Transformers | Replace the existing 2x33/11kV transformers and install 2x33kV transformer circuit breakers at Deception Bay zone substation. Construction already commenced. | June 2018 |
| PBH Palm Beach – Upgrade 33/11kV Zone Substation | Replace the existing 5x33kV outdoor circuit breakers in-situ with current contract items, replace the 11kV outdoor circuit breakers using a 2-bus 11kV switchboard with 16 circuit breakers in a standard pre-fabricated switchgear building, replace the existing control room using a standard pre-fabricated control room and upgrade the substation flood resilience at Palm Beach zone substation and carry out the associated remote end works. Construction already commenced. | August 2018 |
| HMT Hemmant - Replace 33/11kV Transformer and 7x33kV Circuit Breakers | Replace 33/11kV 12.5MVA transformer TR1 with a 15/25MVA transformer and replace 7x33kV circuit breakers at Hemmant zone substation. Construction already commenced. | November 2018 |
| BDL Bundall - Rebuild 33/11kV Zone Substation (Replace 33kV and 11kV Circuit Breakers) | Replace the existing 11 kV indoor switchgear with new current standard 11kV indoor switchgear in a new masonry building and replace the existing 6x33kV outdoor circuit breakers with two new 33kV Horizon circuit breakers (at Bundall zone substation). Construction already commenced. | January 2019 |
| QPT Queens Port - BLB Bulimba - Install 2nd 33kV SCCT to replace F575A&B | Install 2nd new 33kV SCCT feeder F3426 between Queens Port zone substation (SSQPT) and Bulimba zone substation (SSBLB) to replace the ageing 33kV feeders F575A&B, replace 3x33kV outdoor circuit breakers at SSBLB and install a 33kV outdoor feeder bay at SSQPT. Construction already commenced. | February 2019 |
| CBW Caboolture West - Replace 3x33/11kV Transformers and Ageing Equipment | Replace the existing 3x10/12.5MVA 33/11kV transformers with 2x15/25MVA 33/11kV transformers, replace identified 6x33kV outdoor circuit breakers in-situ and replace the 33kV isolators at Caboolture West zone substation with the associated remote end works. Construction already commenced. | March 2019 |
| LDR Labrador - Replace 3x33/11kV Transformers and 33kV & 11kV switchgear | Replace the existing 3x33/11kV 12.5MVA transformers, 11kV outdoor switchgear and 5x33kV circuit breakers with 2x25MVA transformers, 3x33kV circuit breakers and a new 11 kV switchboard at Labrador zone substation. Construction already commenced. | March 2019 |
| GGR Glenore Grove – replace 33/11kV Transformer & Upgrade Zone Substation | Replace 1 x 33/11kV 6.25MVA transformer, 33kV & 11kV isolators and other ageing assets at Glenore Grove zone substation with an 8 MVA midi-modular substation. Construction scheduled to commence in December 2018. | May 2019 |
| TWG Toowong - Replace 2x33/11kV Transformers | Replace 2x33/11kV 20MVA transformers at Toowong zone substation with 2x25MVA transformers recovered from Wellington Road zone substation. Construction already commenced. | May 2019 |
| CSE Chermside - Replace 33/11kV Transformer & Rebuild 33kV Bus | Replace 33/11kV 15/20MVA transformer TR1 with a 15/25MVA transformer and rebuild 33kV bus while replacing 8 x 33kV isolators & bus structures at Chermside zone substation. Construction scheduled to commence in March 2019. | February 2020 |
| CFD Clayfield – HDA Hendra - Install 33kV DCCT Underground Feeders to Replace Aged 33kV Feeders | Decommission the aged HSL 33kV underground DCCT feeders F502 & F534 between Kedron and Clayfield zone substations and replace the aged HSL 33kV underground feeder F636 between Hendra and Clayfield zone substations with a DCCT. Construction scheduled to commence in May 2019. | May 2020 |
| HDA Hendra - Replace 33kV Circuit Breakers | Replace 6x33kV Circuit Breakers and other ageing assets at Hendra zone substation. Construction scheduled to commence in July 2019. | May 2020 |
| MDH Meeandah - WSS Whinstanes - Install 33kV SCCT Overhead & Underground Feeder to Replace Aged 33kV Feeder F556A/B | Replace the aged HSL 33kV underground DCCT feeder F556A&B between Meeandah bulk supply substation and Whinstanes zone substation with a 33kV SCCT, part underground and part overhead feeder. Construction scheduled to commence in August 2019. | June 2020 |
| SPD Surfers Paradise - Replace 110/11kV Transformer | Replace 110/11kV 50MVA Transformer TR1 at Surfers Paradise zone substation with a 60MVA transformer. | June 2020 |
| T187 Richland Bulk Supply - Replace 33kV Circuit Breakers | Replace 13x33kV Circuit Breakers, 33kV disconnectors and other ageing assets at Richlands bulk supply substation. Construction scheduled to commence in June 2019. | September 2020 |
| RCF Redcliffe - Replace 33/11kV Transformer and Upgrade Zone Substation | Replace 33/11kV 12.5/14MVA transformer TR2 and ageing 33kV outdoor switchgear at Redcliffe zone substation with a 25MVA transformer and an indoor 33kV switchboard. Construction scheduled to commence in July 2019. | October 2020 |
| CFD Clayfield - Replace 2x33/11kV Transformers | Replace 2x33/11kV 12.5/17MVA transformers with 2x15/25MVA transformers and recover ageing 33kV switchgear at Clayfield zone substation. Construction scheduled to commence in November 2018. | December 2020 |
| KCY Kilcoy - Replace 33/11kV Transformer & Upgrade Zone Substation | Replace 33/11kV 5MVA transformer TR3, 11kV disconnectors & relays and upgrade Kilcoy zone substation with a 15/25MVA transformer & a modular substation. Construction scheduled to commence in June 2019. | December 2020 |
| HDA Hendra – NDH Nundah - Replace 33kV UG HSL DCCT F535 & F540 | Replace the aged HSL 33kV underground feeders F535 & F540 between Hendra and Nundah zone substations with a SCCT. Construction scheduled to commence in December 2019. | March 2021 |
| BMT Black Mountain - Rebuild Substation | Replace 3x33/11kV 5MVA transformers, 33kV Circuit Breaker, 33kV & 11kV isolators and other ageing assets at Black Mountain zone substation with an 8MVA midi-modular substation. Construction scheduled to commence in January 2019. | April 2021 |