Resources

… 2025 Generation Stack Report Prepared for Transpower New Zealand Ltd Prepared by … stack currently used by Transpower in its forward planning activities, held in Appendix F of The Transpower … for Transpower, the owner and operator of the national transmission grid, which uses the ‘Generation Stack’ data to …

… rationale as to why it believes that fixed, benefit-based transmission charges will best achieve its statutory … constructive participation by customers in transmission planning processes and to enhance the perceived fairness, … pricing design that are always relevant and important. This report presents the views of myself and my company, CEC, and …

… Report on 2 March 2017 South Island AUFLS Event July 2018 … the incident was the disconnection of two in-service 220 kV transmission circuits during scheduled equipment tests at … of this investigation was on issues relating to outage planning, the event trigger and incorrect actions …

… PARK SECTION) RECONDUCTORING ATTACHMENT D: OUTAGE MODELLING REPORT Transpower New Zealand Limited February 2018 OTERANGA … be higher transfers from South Island generation. However, transmission constraints in the lower South Island would … looked at bringing the project timing forward. However, the planning, procurement and 3 …

… Economic Review of EA CBA Working Paper A REPORT FOR TRANSPOWER October 2013 Project Team: Hayden … 5 2 Economic Efficiency and Pricing 6 2.1 The objective of transmission pricing 6 2.2 SRMC and static efficiency 7 2.3 … it could lead to significant changes in the transmission planning outlook. The forecast requirement for (now) …

… Copy to: [email protected]; Interruption Report: Upper South Island Loss of Supply – 23 October 2025 … a drone survey, which is underway. Transpower must publicly report for each unplanned interruption over one system … will not be fully complete until early next year. Figure 1: Transmission system map: ISL–KIK–1 is on the (dashed) single …

… Winter Group (NWG) analysis format (2007-2016)3. This report contains the results of the NZGB based assessment of … - (A + C) 757 948 E Available HVDC transfer capacity Before transmission loss 1200 1200 F Estimated energy transfer … North Island N-1 and N-G-1 capacity margins. Plant/Circuit Planning Status Start End MW Loss HLY9 Confirmed 1/07/2015 …

… System operator initial report: Hawke’s Bay loss of supply This document outlines … conditions 3.1 Hawke’s Bay power system The Hawke’s Bay transmission system (known as grid zone 5) is depicted in … slip has exposed a section of the Firstgas Bay of Plenty transmission pipeline near Gisborne. Note: Gas supply to …

… Margin (SI-WEM); adequacy of generation and north- to-south transmission capacity to meet expected South Island … decrease in the national demand forecast compared to that reported in the 2023 SOSA, largely attributed to a lower … MW for NI-WCM. https://www.transpower.co.nz/system-operator/planning-future/security-supply-annual-assessment …

… .............................. 141414 System operator reporting to the Authority (clause 8.43(g)) … and dispatching ancillary services to assist it in planning to comply and complying with its dispatch … generation output that supports the initial charging of transmission circuits and assets, and the progressive …