AEMO Transmission Cost Estimating Framework

AEMO Transmission Cost Estimating Framework

The Australian Energy Market Operator (AEMO) manages electricity and gas systems and markets across Australia. This project involved setting out a framework for AEMO to develop a new database for electricity transmission costs within their Integrated System Plan (ISP), which provides a roadmap for the efficient development of the National Electricity Market over the next 20+ years.

The ISP Cost Estimating Framework will ultimately improve the accuracy of cost estimates for projects and provide clarity on the work required and level of accuracy expected at each stage of the regulatory approvals process.


MBB Group was engaged by AEMO to develop the new cost estimating framework and transmission cost database specifications, using our significant experience of advising on major transmission projects.

MBB also developed a framework for the Role of Transmission Network Service Providers in Costing Preparatory Activities and a framework for Packaging and Staging ISP projects, in order to optimise risk allocation, competitive tension and manage contractor resource supply risks.


  • Financial Modelling
  • Due Diligence
  • Cost Estimation Framework
  • Major Infrastructure Development
  • Stakeholder Management
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