• Helicopter work started in August and could take until the end of September
• PowerNet crews are being supported by two expert teams to complete the line efficiently
• The new line aims to boost electricity supply and reduce reliance on coal over time
PowerNet is making steady progress on its Awarua Network Project, using helicopters to help string a new high-voltage electricity line. The line, which stretches 19.5km from Findlay Road to Awarua, began construction in February and is set to play a key role in supporting the region’s move away from coal.
Specialist crews from Heliventures and Network Waitaki, who both have experience in helicopter line stringing, are working with PowerNet. The helicopter work started on 25 August and is highly dependent on weather conditions. So far, more than 8km of the new line has been strung.
A McDonnell Douglas 520N Notar helicopter is being used for the job. It’s designed to be about 50 percent quieter than similar-sized helicopters, as it operates without a tail rotor.
The helicopter stringing is expected to continue into late September. Once this phase is complete and the line is live, PowerNet crews will finish off by removing old poles and undergrounding some of the existing lines.
The project is more than just a new power line. It also includes an upgrade to the Transpower Grid Exit Point near Findlay Road and the construction of a new substation at Awarua.
PowerNet said the upgrades are essential because the current infrastructure cannot carry the increased power loads needed by local industrial businesses aiming to decarbonise. The new 66kV line is designed to future-proof electricity supply in the area for the next 50 years.
To date, 191 new poles have been installed. The line is expected to be energised in October, although full load capability is not expected until January.
PowerNet acknowledged that the project has caused disruption for residents along the route. The company said it had been in regular contact with the community and thanked everyone for their patience throughout the build.