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… CONSULTATION INCLUDING INVITATION FOR INFORMATION ON NON- TRANSMISSION SOLUTIONS Transpower New Zealand Limited July … and increasing against the prudent forecast we use for planning purposes. Even under the expected forecast, the … signalled ahead through Transpower’s transmission planning report. However these decommissionings were signalled after …

… 5 Priority 1 2 3 4 There were two High Potential Incidents reported in the December/January period. An apparent … deliberately removing scaffolding from below a transmission line without supervision, and the second … endorsed by NERG and Action owner assigned. • Planning underway to schedule service provider audits • …

… 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” …

… Tower 130 Investigation report: Updates on progress against recommended actions – … resilience With the grid owner, review the contingency planning principles to specifically provide for relaxing … training course (online) for new employees to induct to the Transmission asset suite. Implement L&SF training course. …

… Tower 130 Investigation report: Updates on progress against recommended actions – … resilience With the grid owner, review the contingency planning principles to specifically provide for relaxing … training course (online) for new employees to induct to the Transmission asset suite. Implement L&SF training course. …

… http://www.transpower.co.nz/ Transpower report: Operational Impact Assessment, Tiwai Smelter Closure … extra reactive power regulation capability, and removing transmission circuits from service. The system uses a range … Contingency The uncertainty of an event occurring, and the planning to cover for it; for example, in relation to …

… https://www.transpower.co.nz/system-operator TRANSPOWER REPORT: Event Classifications 3 1 INTERCONNECTING … Remaining event classifications Event Classification Single Transmission Circuit Contingent Event Generating Unit … Event HVDC bipole link Extended Contingent Event Both transmission circuits of a double circuit line Other …

… load times to 10 minutes during the CYD CML TWZ tactical transmission upgrade (TTU) outages and Clutha and Upper … Contingency definitions have been built to monitor and report on the impacts of a CYD CML TWZ circuit tripping when … when running to 10 minute off load times during a planned transmission outage ▪ Planned transmission outages resulting …

… to determining TGR net benefit. The SO monitors and reports on security of supply at national level weekly. If … monitoring of line loading. - To consider TGR if loading on transmission lines into a region exceeds 75% of constraints8 … net benefit process: • Network constraints –The Operations Planning (SO) team provides a set of equations detailing …

… 3 7 Priority 1 2 3 4 There were no high potential incidents reported during July. There was one recordable injury … site where a scaffold was found to be contravening a transmission line MAD. Work has been stopped and WorkSafe … Project will be Re-planned to commence in July. • Planning for July recommencement. Complete - Service Alert …