To strengthen security of power supply from the edge of the Egmont National Park to the Stratford Mountain House, while maintaining power supply to customers during the project.
This was supported by further influencing factors including:
A decision to place the overhead electricity supply underground from the park gates on Pembroke Rd, to the Stratford Mountain House.
1. Install an underground cable while the overline was still in service, with a short-planned power outage to connect the cable at each end, and convert from an overhead to underground supply.
2. Removal of the 66 old poles and 4.4km overhead conductor cable was designed to enhance the aesthetics of the park, while strengthening the security of supply. These were removed once the new underground cable was in operation.
The project’s success was supported by collaboration across Powerco, the Department of Conservation, the Stratford District Council, Ngati Ruanui (the Stratford Mountain House owner), and the Stratford Mountain Club (the Manganui ski field operator).