While we aren’t formally consulting on this approach, we are publishing our technical approach to ensure we are open and transparent about how we propose to run the methodology. We welcome feedback, particularly from those with relevant experience and expertise, to help us shape and refine our methodology and modelling.
Executive summary
We have produced an executive summary of our technical approach. We recommend reading this first, as it will explain what is contained within each of the other documents linked below, and provide an overview of the approach.
Contact us at [email protected] to provide feedback or to organise an online or in-person discussion.
Demand forecasting documents
- Demand Modelling Methodology
- Industrial Electrification Survey Summary
- Future Grid Scenario Modelling: Visions of the New Zealand Economy to 2050
As well as the above documents, we also used stakeholder feedback from our Imagining Aotearoa in 2050, Potential Scenarios consultations, and feedback from ongoing engagement, as inputs to our demand forecasting.
- Imagining Aotearoa in 2050 consultation document
- Imagining Aotearoa in 2050 - Summary of survey responses
- Potential Scenarios consultation document
- Potential Scenarios summary of submissions (coming in 2026)
- Future Direction finalised scenarios (coming in 2026)
Generation stack documents
Transmission options documents
- High Level Cost Estimation Models Review (coming in 2026)
- Transmission Expansion and Upgrade Options
Methodology documents
- Future Grid Blueprint Methodology
- Quantifying the Competition Benefits of Transmission Investment. Methodology Report
- Quantifying competition benefits of transmission investment. Methodology selection
- Expert Advice on Cost Benefit Assessment (coming in 2026)
Background
We have also produced a list of acronyms used across the above documents, for clarity.