Resources

… leases and line of business allocation (SOSPA split). Transmission Line of Business We have a growing workplan 200 … 2025 – 31 months • 9 main Contractors – Environmental & Planning Specialist, 3 ECs, 5 SP. • Engagement of more than … • The dedicated Customer Team, as well as having a customer reporting framework, has made a positive difference. Tim …

… of year, in part driven by outages on grid constraining transmission to upper North Island. • Geothermal at 22%. Te … 3 outage 2 22/02/2025 08/03/2025 Annual Pole 2 outage NZGB Reported NZGB N-1-G margins for 90% weather risk and Base … https://www.transpower.co.nz/system-operator/planning-future/system-security-forecast Security of Supply …

… assessments highlight some upcoming tighter periods due to transmission outages reducing the post- contingent voltage … stem-operator/notices-and-reporting/market-operations-weekly-report/energy-security-outlook … stem-operator/notices-and-reporting/market-operations-weekly-report/energy-security-outlook TRANSPOWER.CO.NZ Any …

… e karakia Tim Duguid & Avi Dastidar 14:30 Integrating non-transmission solutions into our Major Capital Projects … Investment Group Manager Major Capital Projects update Non-transmission solutions – what are they? Our new approach … brownfield Larger, greenfield Introducing new harmonic reporting Identifying further opportunities to increase …

… 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 …

… 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 …

… 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 …

… Operations Update Managing under frequency risk during transmission circuit outages Operations Update Simple risk … Asset Owners should consider pole-slip protection SSF report https://www.transpower.co.nz/system-operator/planning-future/system-security-forecast For any queries …

… 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 …