Resources

… the risk of the loss of a large generating unit or transmission circuit triggering operation of Automatic Under … Part D: North Island and South Island 220 kV Grid Backbone reports. 4 Security of Supply Annual Assessment | Transpower https://www.transpower.co.nz/system-operator/planning-future/security-supply-annual-assessment SYSTEM …

… 4.1 to 4.5 below, these form the base assumptions for this report: ▪ Studholme is supplied from Waitaki in Winter, with … before the voltage and thermal issues identified in this report, particularly for planned outages of 220 kV circuits … ceases operation in 2025, this will be the only remaining transmission constraint binding in this scenario for both …

… of a new or modified connection: ▪ before the completion of planning for the construction (Planning ACS) ▪ at, or … New Zealand’s electricity system, along with a summary of transmission charges. ▪ GL-EA-953 Connection Study Guide for … commissioning documentation and test results. Commissioning reports should confirm prior performance assessments and the …

… unit commitment or wind generation if a large generation or transmission asset fails. Market update Energy: National … commitment or wind generation should a major generation or transmission asset not be available/trip during May. Firm … finalising our draft Security of Supply Assessment (SOSA) report in preparation for consultation. Next SO Forum will …

… 66 Sample Report Headings … industry/asset-owner-requirements/asset-test-planning. 3.1.4 Submission of information When reviewing the … without incident with both the generator and the islanded transmission network energised ▪ manage frequency and … and any local auxiliaries ▪ To assess the ability to liven transmission circuits following a partial or total shutdown …

… that this non-compliance may have on the System Operator planning to comply, and comply, with their Principal … onto New Zealand’s electricity system, plus a summary of transmission charges. Connection Study Guide for Connecting … Estimate acceptance Engineering assessment Assessment Report review Report approval Draft decision Consultation …

… 15 5.3 Validation Report Requirements … 26 Validation Report Template … where a transformer steps up the voltage to a desirable transmission level to connect to the power system. The … to model the network inside the wind plant for the planning and operation studies mentioned in Section 2.3 …

… Department or authorised agency ceases to compile and report figures for the Consumers Price Index (all groups), … operator engaged in the co-ordination of an integrated transmission network under the same or similar circumstances … error in such date and no automated message indicating a transmission error). 14.2 Not a Business Day: If any such …

… issue. © 2025 Transpower New Zealand Limited Operations Planning Engineer In the context of this document, an … Factor Operations Planning are notified by … Change to transmission network or operating policy ▪ Commissioning or … ▪ Operations Planning Engineer from event log and system reports Document Status: Issued Doc File Name:PR-OC-204 …

… or cascading failure. Besides our study findings, this report recommends further assessment, discussions with asset … type of faults can occur between the three conductors of a transmission line or buses at a substation. This is a low … power system. https://www.transpower.co.nz/system-operator/planning-future/system-security-forecast TRANSPOWER NEW …