This page contains Major Projects completed over the last few years by Wellington Electricity.
| Date Started | Date Completed | Project Name | Project Outline |
| Sep 2021 | Feb 2023 | Bowen to Moore Street cable installation | The installation of a major underground electricity cable to supply a new building development and increase the resilience of our power supply. |
| Jul 2022 | Feb 2023 | Tītahi Bay Cable Repairs (Phase 2) | Essential repairs to one of the main underground power cables supplying Tītahi Bay. |
| Jun 2022 | Dec 2022 | Wellington Water Kilbirnie pipeline repairs (Stage 1) | Relocation of several underground electricity and communication cables to support Wellington Water in safely repairing and restoring one of their major water mains. |
| Apr 2021 | Apr 2022 | Frederick Street cable upgrade (Project Whakareri) | Replacement of major cables between Transpower’s Central Park substation and our Frederick Street substation, to provide increased electrical capacity and improve the resilience and reliability of the city’s power supply. |
| Sep 2019 | Sep 2020 | Caribbean Reserve Realignment and Undergrounding | Change the alignment of and underground some of our High Voltage cables. the work was done to make it safer for Transpower crews to maintain some of their power lines which are relatively close to our lines. |
| Jan 2020 | Jun 2020 | Mount Street Cable Repair | Critical repairs to an underground cable which runs through the Mount Street Cemetery in Kelburn. The cable goes to a substation at Victoria University. It supplies the University campus and parts of Kelburn, Aro Valley and the CBD. |
| Mar 2020 | Sep 2020 | Delhi Crescent Substation Replacement | Replacement and upgrade of a local substation. |
| Oct 2019 | Oct 2019 | Transmission Gully Undergrounding | Undergrounding a section of our overhead network along SH58 to support NZTA's construction of a new intersection associated with the Transmission Gully motorway. |
| Sep 2019 | Nov 2019 | Ohariu Valley Rd Undergrounding | Undergrounding sections of our High Voltage cables in an area close to 272 Ohariu Road, Ohariu Valley. |
| Mar 2019 | Feb 2020 | Gracefield Zone Substation Upgrade |
Major upgrade of our Gracefield zone substation to upgrade the substation systems and equipment to the latest technology and standards. |
| Dec 2018 | Jan 2019 | Tītahi Bay Cable Repairs | Underground excavation and drone monitoring to identify and fix a fault in one of the main underground power cables which supplies the Titahi Bay, Porirua area. |
| Sep 2018 | Nov 2018 | Karori Cable Undergrounding | Undergrounding of one of our main 11kV supply cables from 155-174 Makara Road and 143-169 South Karori Road, Karori respectively. |
| Jun 2017 | Mar 2018 | Blenheim to Ward St Cable Upgrade | Upgrade of the 11kV cable from Blenheim to Ward Sts Upper Hutt to improve the reliability of the sub transmission network in Upper Hutt. |
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