Resources

… Security of Supply Assessment (SOSA). The SOSA is an annual report that helps Aotearoa’s electricity sector understand … Including these step loads supports better forward-looking planning to prepare the system for plausible, high-impact … sent north via the inter-island high-voltage direct current transmission link (the HVDC) between the North and South …

… Power BI Desktop Market Operations Weekly Report - Week Ended 23 November 2025 TRANSPOWER // MARKET … could push the Maungatapere–Kaikohe corridor closer to its transmission limits, particularly under n-1 conditions, … further solar capacity comes online and as operational and planning decisions increasingly account for these changing …

… ................................... 26 A3.5 Inter-Island Transmission Assumptions ............................ 28 … 66 Appendix 7: Security of Supply Reporting 70 TRANSPOWER NEW ZEALAND | APPENDICES FOR DRAFT … Modelling team and align with those used for transmission planning and strategic planning. They are developed …

… more closely through the market schedules. The latest NZGB report is available on the NZGB website. Electricity Market … at 11:30pm on Tuesday 14 April, with lower North Island transmission constraints limiting the ability of lower … 19 Apr NI FIR NI SIR SI FIR SI SIR Market Operations Weekly Report - Week Ended 19 April 2026 South Island Energy Risk …

… 32 8 Transmission Assumptions in the Electricity Risk Curves … The System Operator performs its usual security of supply reporting which includes monthly ESO updates and a weekly … Forecast (SSF) https://www.transpower.co.nz/system-operator/planning-future/system-security-forecast TRANSPOWER NEW …

… Power BI Desktop Market Operations Weekly Report - Week Ended 2 November 2025 TRANSPOWER // MARKET … region in the early morning of Tuesday 28 October due to transmission outages resulting from lightning strikes. At … more closely through the market schedules. The latest NZGB report is available on the NZGB website. Electricity Market …

… https://www.transpower.co.nz/system-operator/planning-future/security-supply-annual-assessment … risks occur in early/mid-December when some planned transmission outages further restrict generation. • In the … capacity risks during 8-9 December during a planned WKM-WRK transmission outage which limits generation export. While …

… and work to improve clarity of the Electricity Risk Curves reporting in relation to contingent storage and Watch … https://www.transpower.co.nz/system-operator/planning-future/security-supply-annual-assessment TRANSPOWER … Transpower as the grid owner cancelled and delayed some transmission outages to release affected generation. The New …

… MW Rankine at full capacity for ~85 days). • Methanex has reportedly been using 50-52TJ/day of gas for their … https://www.transpower.co.nz/system-operator/planning-future/security-supply-annual-assessment TRANSPOWER … during periods of increased planned generation and/or transmission outages in April and as we head into winter. …