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Last updated: 10 Dec 2025
Quantifying the Competition Benefits of Transmission Investment. Methodology Report
… Quantifying the Competition Benefits of Transmission Investment Methodology Report September 2025 Copyright Castalia Limited. All rights … the case for including these benefits in transmission planning now. ▪ Further, addressing the issue by including … Quantifying the Competition Benefits of Transmission Investment. Methodology Report …
Last updated: 10 Dec 2025
Quantifying competition benefits of transmission investment. Methodology selection
… Quantifying competition benefits of transmission investment Methodology selection Transpower … and disclaimer 39 Appendix A 40 4 Executive summary This report sets out a review of different approaches to … IM:3 1 See, for example, Frank A Wolak “Transmission planning and operation in the wholesale market regime” in …
Last updated: 17 Oct 2022
3309 - Market report UNI Voltage.pdf
… Tightened on 1 Aug 2016 EVENT No 3309 TRANSPOWER REPORT: UNI VOLTAGE STABILITY CONSTRAINT TEMPORARILY … The UNI constraint manages flows through interfacing transmission circuits into the upper North Island region for … WHAT NOW? Transpower has made or initiated a number of planning and operational changes in light of the 1 August …
Last updated: 22 May 2023
System operator initial report Hawkes Bay loss of supply.pdf
… 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 …
Last updated: 10 Dec 2025
Future Grid Blueprint Methodology - Te Kanapu Technical Approach - V1.0 - December 2025
… Investment Group Manager 9/12/2025 Stuart MacDonald System Planning Group Manager 9/12/2025 Ramu Naidoo Market … 9 2.3 Generation and transmission expansion modelling … agent-based simulation. Castalia, in a complementary report, proposed a simpler method to estimate the cost of …
Last updated: 10 Dec 2025
Te Kanapu Technical Approach Executive Summary
… system and the investment that will be needed in transmission, so we can determine the best possible outcome … Transpower author to be published 2025 Generation Stack Report Future Grid Scenario Modelling. Visions of the New … and collaboration are core to the success of long-term planning. We cannot possibly know all there is to know about …
Last updated: 11 Jul 2023
EvolvingSecurityOfSupplyAssessmentsNZ_FINAL.pdf
… of supply, which assesses how much fuel, generation and transmission capacity is available over different time … towards a lower carbon future. 1 See WiTMH monitoring report, New Zealand Steel new electric arc furnace and … MW. Japan – 3% to 8% (a practical metric for short- term planning and coordination as compared to the more “formal” …
Last updated: 10 Dec 2025
Demand Modelling Methodology - Te Kanapu Technical Approach - V1.0 - December 2025
… framework is designed to support robust, scenario-based planning for the national grid, enabling Transpower and … disaggregated to regional and GXP levels to enable transmission power flow assessments. This modelling work … GDP forecast. We worked with Sense Partners to develop the report Visions of the New Zealand economy to 20502 to …
Last updated: 16 Nov 2022
Operational impact assessment, Tiwai smelter closure - South Island transient angular stability.pdf
… implications associated with TWI’s possible closure. This report details our findings on the challenge of managing … 14 2.3.1 Managing transmission circuits overloading … dispatch behaviour is maintained. This would make planning and taking outages extremely difficult, even more …
Last updated: 17 Oct 2022
Operational impact assessment, Tiwai Smelter Closure - South Island oscillatory stability_1.0.pdf
… implications associated with TWI’s possible closure. This report summarizes the results of small signal analysis of … constant. This criterion is aligned with Transpower’s Grid Planning guidelines to determine whether a mode is … and 20 MW at Roxburgh. Power transfers along two major transmission routes for the base cases are shown below: …