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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 publishmake …
Last updated: 29 Apr 2025
SO Industry Forum 29 April 2025
… additional capacity available. • Grid Owner to increase transmission offers where generation may be constrained. Low … to provide more generation. • Grid Owner to increase transmission offers where generation may be constrained. • … preparing our draft Security of Supply Assessment (SOSA) report for consultation which is anticipated to open later …
Last updated: 09 Dec 2025
SO Industry Forum 9 December 2025
… include contingent storage, so they differ from those reported by NZX National storage remains above the nominal … within the North Island, with constraints binding due to transmission outages. HVDC transfer • HVDC transfer has been … https://www.transpower.co.nz/system-operator/planning-future/system-security-forecast …
Last updated: 02 Oct 2025
Vector - CACTIS Submission
… asset owners to submit asset capability statements at the planning, pre-commissioning, and final stages of the … frames for asset owners to submit a final connection study report, and for the system operator to review it? Yes … network in order to show how plants react to events on the transmission network. These models do not exist for the …
Last updated: 13 Dec 2024
Low_Residual_Situation_Review_Consultation
… but uncleared generation, ▪ request Transpower as the transmission grid owner to increase transmission offers or require them to reconfigure the grid … https://www.transpower.co.nz/system-operator/notices-and-reporting TRANSPOWER NZ | SYSTEM OPERATOR CONSULATION PAPER …
Last updated: 15 Dec 2025
N - 1 Thermal and Voltage Study_Minor Update 2025 December
… and voltage stability issues. For these contingencies, the report notes both future grid projects that will resolve the … troughs In the previous SSF, assessments indicated several transmission circuits would need to be removed from service … of new reactors and STATCOMs, the need to switch off transmission circuits during light load has decreased. …
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: 13 May 2025
SO Industry Forum 13 May 2025
… from a helicopter used to clean insulators on the HVDC transmission line Recent Successes • Successfully completed … stem-operator/notices-and-reporting/market-operations-weekly-report/energy-security-outlook …
Last updated: 05 Jun 2024
SOROP Proposal Paper - 30 May 2024.pdf
… the SOROP 4. The SOROP is one of our key security of supply planning and policy documents. 5. The SOROP is intended to … for shortages of electricity supply and shortages of transmission capacity. • Energy savings targets are aligned … the required weekly information and ensure that this reporting can be done online if possible. This will make the …