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Last updated: 27 Nov 2025

Security of Supply Review - Winter 2025

… Security of Supply Review – Winter 2025 November 2025 TRANSPOWER | … 4 Outlook into 2026 … 6 Typical security of supply challenges … Security of Supply Review - Winter 2025 …

Security of Supply Review - Winter 2025.pdf (PDF 1.54 MB)

Last updated: 02 Dec 2025

Previous Market Operations Weekly Reports/ Weekly Insights

… Insight topics Report Week Ending Date The increasing share of renewable generation in Aotearoa's electricity supply mix 30-Nov-25 Historic trends in evolving branch … Significant Wind Fluctuations on the System 6-Jul-25 Security of Supply Assessment 2025 29-Jun-25 Total and Net …

Last updated: 09 May 2025

2025 SOSA - Draft Report

… TRANSPOWER NEW ZEALAND | SECURITY OF SUPPLY ASSESSMENT 2024 1 Security of Supply Assessment 2025 …

2025 SOSA - Draft Report.pdf (PDF 5.49 MB)

Last updated: 30 Jun 2025

2025 SOSA - Final Report

… TRANSPOWER NEW ZEALAND | SECURITY OF SUPPLY ASSESSMENT 2025 1 Security of Supply Assessment 2025 …

2025 SOSA - Final Report.pdf (PDF 5.35 MB)

Last updated: 10 Mar 2025

System Operator -SOSFIP review Issues Paper - March 2025

… | SOSFIP REVIEW – ISSUES PAPER | MARCH 2025 1 Issues Paper Security of Supply Forecasting and Information Policy Review 10 March …

System Operator -SOSFIP review Issues Paper - March 2025.pdf (PDF 1.62 MB)

Last updated: 17 Oct 2023

Monitoring Report - October 2023 - Final.pdf

… Report is designed to identify, within the key drivers of Whakamana i Te Mauri Hiko, those factors that are … are tracking against our forecasts Impact on demand/supply Consistency with WiTMH base case scenario In our last … generation. Transpower regularly assesses New Zealand’s security of supply outlook to help the industry with …

Monitoring Report - October 2023 - Final.pdf (PDF 4.86 MB)

Last updated: 05 Nov 2025

Industry workshops/ webinars

… participants through the difference bids process. A video of the workshop and slide pack can be found below. Slide … tested industry preparedness for an extended electricity supply shortfall that resulted in rolling outages. We are … and the opportunities identified for further improvement. Security of Supply and evolving context – 25 July 2023 We …

Last updated: 05 Dec 2023