Ensuring reliable and resilient networks

Resilience to extreme weather and climate: In FY26, a desktop study assessed 47 regulator stations exposed to coastal inundation and inland flooding. Of these, 10 (5% of all Powerco's regulator stations) require feasibility assessments and targeted mitigation, and have been included in the FY27 Gas Works Plan.

The remaining stations will be managed through preventative maintenance and reactive inspections following significant events, reducing the number of assets classified as vulnerable.

Of the 13 crossings initially identified as vulnerable, three require mitigation and are included in the FY27 Gas Works Plan. The remaining crossings were assessed as lower priority against our asset management drivers and are not included in the FY27 delivery programme.

Resilience to extreme weather and climate: 

• We completed our second community PowerHub at Harataunga Marae – supporting energy to communities in Kennedy Bay and Coromandel. This builds on our learnings at Ākitio and Tararua, where we've partnered with EECA and Thames-Coromandel District Council to incorporate community solar.
• Our newly established Lifecycle Asset Management group is exploring a new process to assess and apply asset risks, starting with bushfire.
• We have developed internal hazard maps based on council, Earth Sciences New Zealand and other provider data in the form of GIS maps, but further work will be needed to publish internal maps that are more broadly available across the business.

Resilience to extreme weather and climate: We have completed an interim review of the RMMAT, based on recent work in assessing climate and resilience risks. With improvement across several areas in both our work on asset vulnerability assessments and our response capability via CIMS, we have improved our score from 2.25-2.55.

Maintaining a reliable energy supply:  During FY26, we kept our customers’ power on for an average of 99.99% of the time. This availability is the key measure used by the Commerce Commission to assess our performance, and includes normalised major events. During FY26, we faced five weather related major event days (MED) with a total duration of 10.6 days. In comparison, during FY23 (Cyclone Gabrielle), we had two major events days with a total duration of 5.1 days. However, despite this, our performance as measured by the Commerce Commission was better than in FY23 and we remained under the quality path cap.

Maintaining a reliable energy supply: The Taranaki Lifelines Advisory Group launched a pilot project to demonstrate how climate-related adaptation plans can be better coordinated between infrastructure owners, including the opportunity to utilise the National Forward Works Viewer. Powerco will leverage its physical risk assessments and adaptation plans, completed as part of the climate-related disclosures, for assets in the Taranaki region. These will be combined with the adaptation plans from the other participants of the pilot and loaded into the works viewer for coordination and opportunities to sequence the plans more efficiently. 

Maintaining a reliable energy supply: We kept the gas flowing to customers 99.9998% of the time during FY26.

Maintaining a reliable energy supply: The Powerco Board approved our 30-year Electricity Asset Management Plan (AMP) scenarios in May 2025. These were shared with the wider industry at the Electricity Engineers Association conference in September 2025, and are summarised on Powerco's website. The 30-year scenarios also formed part of Powerco's full update of the 2026 Electricity AMP, published end of FY26. 

Maintaining a reliable energy supply: During FY26, we continued to install automation equipment in readiness for ADMS and DSO implementation. Phase 2 of this project has been paused while we deliver other business priorities.