Resources
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Last updated: 25 Aug 2025
HVDC Cable Discharge Modelling Review - Version 1.0
… of 2023 we published the 2024 Credible Event Review Scope report signalling what we would study during the 2024 … running under the Cook Strait, is a major part of the transmission system which enables the transport of … to identify and review the events deemed credible on the transmission system and to determine if the classification …
Last updated: 25 Aug 2025
HVDC Cable Discharge Modelling Review.pdf
… of 2023 we published the 2024 Credible Event Review Scope report signalling what we would study during the 2024 … running under the Cook Strait, is a major part of the transmission system which enables the transport of … to identify and review the events deemed credible on the transmission system and to determine if the classification …
Last updated: 23 Feb 2026
Broad Solutions NZGP1.1 Assurance v1.2
… 900 Document Status: Version 1.2 Date: 10 Dec 2025 1 This report was prepared for Transpower New Zealand Limited … Record_SDDP_Run_Checks.pdf mcirc.dat Transmission flows are reasonable Pass Very brief periods … NZGP1-1_TiwaiStays_BBI_QA Record_SDDP_Run_Checks.pdf 17 Transmission loss benefits are reasonable Pass Losses …
Last updated: 07 May 2025
HVDC - Attachment 1 - Need Demand and Generation Scenarios
… regarded as the preferred solution for bulk electricity transmission, both onshore and offshore, with numerous … replacement will involve significant complexity, detailed planning, and rigorous testing. Our investigations have also … identified in the thermal fuel transition impact assessment reports.15 Where a step load appears to be also captured in …
Last updated: 25 Mar 2025
Orion - SOSFIP Review - Issues Paper Questions - March 2025
… Review, paragraph 106(b), page 30. 4 Electricity Authority Report Northland tower collapse, page 7. 5 RNZ - Blame laid … System Operator’s (CAISO) program requires a 17% Planning Reserve Margin (increased from 16% in 2024), which … https://www.caiso.com/generation-transmission/resource-adequacy …
Last updated: 07 Oct 2025
Draft SOSFIP amendment - Relative to 15 Dec 2020 Version - October 2025
… risk curves must— (a) assume full availability of installed transmission and generation assets , unless reasonably … operator ’s assumptions, about— (i) existing generation and transmission capabilities; and (ii) expected generation and … energy and capacity margins. 11. Weekly security of supply report 11.1 The system operator must prepare and publish …
Last updated: 24 Jul 2025
Evolving market resource co-ordination_Tie-breaker provisions_Consultation Paper
… is low and renewable generation is high nationwide or when transmission constraints bind in regions with high renewable … finalises-response-to-mdag-report/. Enabling negative price offers could be considered … discretionary interventions, supports reliable operational planning, and benefits inflexible generators. It also …
Last updated: 12 Jun 2025
Redclyffe 220 kV Switchyard Resilience Attachment 4 - Costing
… and include expenses related to consenting and designation. Transmission lines construction works This includes material … replacements and costs are as advised by Transpower Asset Planning Management and can be considered as Class 4. 1 … • Technical reviews. • Performance monitoring and reporting. Transpower will allocate experienced management …
Last updated: 12 Dec 2024
SO - Co-ordination of Low Residual Situations Consultation - NewPower Submission
… Grid compliance modes, and so can offer a range of network, transmission and energy market services within NZEM’s … https://www.transpower.co.nz/system-operator/notices-and- reporting/notices-insufficient-generation Q2. Do you agree … https://www.transpower.co.nz/system-operator/notices-and-reporting/notices-insufficient-generation …
Last updated: 02 Oct 2025
IEGA - CACTIS Submission
… within 20 business days A final copy of a connection study report Agree within 20 business days 8 Paragraphs 1.2 and … interface is a defined term relating to a connection to the transmission grid. The IEGA agrees with the proposed CACTIS … stations are unlikely to alter any details at the transmission grid interface or impact the SO’s ability to …