Titahi Bay Cable Replacement Project Stage 2 – Duct, Cable and Fibre Installations
Project Overview
The Titahi Bay Cable replacement Project is a Wellington Electricity network improvement project designed to increase the reliability and resilience of electricity supply in the Porirua area. The project involves installing new underground electricity cables which will replace the existing aged cables and communication and temperature sensing fibres. Work is taking place between Woodcarver Lane to Mungavin Avenue.
Works started on 21st September 2026. Target completion is December 2026.
Current Status
Updated: 27th October 2026
From 19 to 23 October, the team installed 18m of new ducting and replaced 12m of ducts that were damaged when an existing water main under the road broke. Repairing that damage meant the team didn’t reach this week’s target of 131m. Ground conditions in the trench are now improving, so we expect to make progress as planned.
Overall progress: Duct installation is continuing towards Dimock Street. The project remains on schedule and is still expected to be completed by December 2026.
What's next: The team will complete the ducting on Woodcarver Lane and continue working towards Dimock Street
Location Overview
Get in touch
For more information, please don't hesitate to email us at [email protected].
The project will:
- Improve the reliability of electricity supply to customers in the Porirua area.
- Better distribute electrical load across the network.
- Help minimise the risk and impact of power supply interruptions.
- Eliminate the risk of failures of the existing cables.
The project includes:
- Installation of new underground electricity cables and fibres.
- Construction of civil ducts for cable and fibre installations.
Residents and businesses in the area may experience:
- Traffic management, including stop/go when required.
- Requests for site access where electricity assets are located on private property.
- Tree trimming or vegetation management where trees are too close to power lines.
Customers affected by planned outages will be notified through their electricity retailer.
The project is managed by Wellington Electricity and delivered with support from:
- Omexom
- Bryce O’ Sullivan Contracting Limited (Bosco)
These contractors may contact affected residents and businesses directly regarding specific works or access requirements.
- Bosco is preparing for installation of civil ducts.
- Omexom will undertake cable installation and electrical asset installations.
- A detailed construction programme and timeline will be communicated to the community once finalised.
Some customers may experience planned outages during certain stages of the project. If you are affected, your electricity retailer will provide advance notice.
Roadworks and traffic management are required to safely install underground cables and associated infrastructure.
If electricity assets are located on private land, contractors may contact property owners to arrange access. Every effort will be made to minimise disruption and restore affected areas once work is complete.
The project target completion is December 2026.
To help improve our service, what feedback can you give us about this page?