Project Overview

ElectraNet is exploring options that can facilitate South Australia’s energy transformation, while improving system security and helping lower electricity prices.

In November 2016, ElectraNet released a report for public consultation to explore options to facilitate South Australia’s energy transformation, while improving system security and helping to lower electricity prices. This report explored the technical and economic feasibility of a new interconnector as well as alternative non-network solution options, through the Regulatory Investment Test for Transmission (RIT-T).

The RIT-T is the economic cost benefit test that is overseen by the Australian Energy Regulator (AER) and applies to all major network investments in the National Electricity Market.

During the consultation we received extensive feedback and input from electricity market participants and the wider community.

In June 2018, the Project Assessment Draft Report (PADR) was released. The report identifies that the construction of a new, high capacity interconnector between South Australia and New South Wales would deliver substantial net benefits to customers.

These net market benefits are estimated to be more than $1 billion over 21 years.

Independent modelling by ACIL Allen estimates that annual residential customer bills would reduce by up to about $30 in South Australia and $20 in New South Wales.

Interconnection with NSW would enable South Australia to increase renewable energy production and export it into the national market.

Based on current estimates, a new interconnector would cost $1.5 billion across both states, and subject to receiving all necessary environmental and development approvals, could be delivered between 2022 and 2024.

To deliver the project, ElectraNet would partner with TransGrid, the manager and operator of the high voltage electricity transmission network in NSW. Should the project be approved, TransGrid would fund the works within its jurisdiction.

The next step of the RIT-T process involves the publication of a Project Assessment Conclusions Report, which ElectraNet currently anticipates will be released by November 2018. The AER will then make the final ruling on whether the preferred option proceeds.

Public consultation

Stakeholders, interest groups and members of the public are invited to have their say on the findings of the PADR, with submissions due by 31 August 2018. Submissions can be emailed to consultation@electranet.com.au.

Below are the associated reports and information developed as part of the RIT-T.

PADR - Submissions

AGL (PDF, 68 KB)
Central Irrigation Trust (PDF, 155 KB)
Meridian Energy (PDF, 85 KB)
Solar Reserve (PDF, 675 KB)
SA Government (PDF, 4 MB)
Fresh Eyre (PDF, 50 KB)
Ausker (PDF, 580 KB)
Business SA (PDF, 60 KB)
Charles Sturt University (PDF, 215 KB)
ARC Mesh (PDF, 315 KB)
Powerlink (PDF, 120 KB)
Tasmanian Department of State Growth (PDF, 90 KB)
Total Environment Centre (PDF, 140 KB)
AusNet Services (PDF, 400 KB)
Australian Energy Council (PDF, 330 KB)
Delta Electricity (PDF, 1,600 KB)
Energy Australia (PDF, 300 KB)
Energy Consumers Australia (PDF, 70 KB)
Energy Users Association of Australia (PDF, 830 KB)
ENGIE (PDF, 100 KB)
Havilah (PDF, 1.6 MB)
Lyon Group (PDF, 185 KB)
Maoneng (PDF, 45 KB)
Origin (PDF, 330 KB)
Public Interest Advocacy Centre (PDF, 125 KB)
Renew Estate (PDF, 765 KB)
SACOME (PDF, 500 KB)
SACOSS (PDF, 325 KB)
Science Party of NSW (PDF, 60 KB)
SEA Gas (PDF, 170 KB)
Smart Wires (PDF, 150 KB)
Snowy Hydro (PDF, 155 KB)
The Energy Project (PDF, 1 MB)
Tilt Renewables (PDF, 142 KB)
TransGrid (PDF, 240 KB)

Public forums

Adelaide public forum presentation - July 2018 (PDF, 5 MB)
Sydney public forum presentation - August 2018 (PDF, 4 MB)
Deep dive presentation - August 2018 (PDF, 758 KB)
Public forums feedback summary (PDF, 109 KB)

Documents Published in response to requests at public forums - August 2018

The total cost of the non-interconnector option (PDF, 200KB)
Net Present Value model output for the low scenario (Excel, 750KB)
Net Present Value model output for the central scenario (Excel, 750KB)
Net Present Value model output for the high scenario (Excel, 770KB)
Datasheets sitting behind PADR figures and charts (Excel, 200KB)
Generator expansion for all scenarios (modelling outputs) (Excel, 800KB)
Functional Specifications of line options (PDF, 420 KB)

Project Assessment Draft Report (PADR) and associated reports - June 2018

SAET - Project Assessment Draft Report (PDF, 3 MB)
Information Sheet - SA Energy Transformation (PDF, 3 MB)
Basis of Estimate for PADR (PDF, 1 MB)
Network Technical Assumptions (PDF, 617 KB)
SA - NSW Interconnector - Preliminary Projected Impact on Electricity Prices (ACIL Allen) (PDF, 342 KB)
Gas Price Forecast Review (PDF, 134 KB)
Consolidated Non-Interconnector Option (PDF, 1 MB)
Market Modelling Report (PDF, 1 MB)
Market Modelling and Assumptions Data Book (Excel, 213 KB)
RIT-T Market Modelling High Level Review (Oakley Greenwood) (PDF, 182 KB)

Project Specification Consultation Report (PACR) and associated reports - November 2016

PSCR (PDF, 2 MB)
Fact Sheet - Exploring South Australia's Energy Transformation (PDF, 980 KB)
South Australian Energy Transformation forum (PDF, 2 MB)
Market Modelling Approach and Assumptions Report (PDF, 759 KB)
SAET Supplementary Information Paper (PDF, 670 KB)

RIT-T

South Australian Energy Transformation

Reports Closing Dates Status Submissions
Project Assessment Draft Report Consultation Closed
  • -
Project Specification Consultation Report Consultation Closed
Market Modelling Approach and Assumptions Report Consultation Closed
  • -
 
 

Project Specification Consultation Report (PSCR)

 

Project Assessment Draft Report (PADR)

 

SAET Supplementary Information Paper

Learn more about the identified need, services that could meet it, and next steps in our process for the SA Energy Transformation project.

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Project Specification Consultation Report South Australian Energy Transformation

ElectraNet is undertaking a Regulatory Investment Test for Transmission (RIT-T) to explore potential solutions to help address the increasing challeng...

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Fact Sheet South Australian Energy Transformation

ElectraNet is exploring potential solutions to help address the increasing challenges of transitioning towards a low-carbon future and...

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South Australian Energy Transformation Forum Presentation

View the presentation provided at our South Australian Energy Transformation forum.

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South Australian Energy Transformation RIT-T Market Modelling Approach and Assumptions Report

Read this consultation report which outlines the proposed methodology for assessing options considered in the South Australian Energy Transformation R...

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