Westpower
Electricity distribution business based in Greymouth, New Zealand
From Wikipedia, the free encyclopedia
Westpower Limited is an electricity distribution business based in Greymouth, New Zealand. The company owns and operates the electricity distribution network in the Westland and Grey districts, and part of the Buller District. The company is wholly owned by the West Coast Electric Power Trust.[1]
Company type | Private |
|---|---|
| Headquarters | , New Zealand |
Area served | West Coast |
| Services | Electricity distribution |
| Owners | West Coast Electric Power Trust (100%) |
| Website | www |
The company's distribution network consists of 2,300 km (1,400 mi) of lines, supplying electricity to approximately 13,700 customers. The network covers the towns of Reefton, Runanga, Greymouth, Hokitika, Ross, Franz Josef and Fox Glacier.[2]
Network statistics
| Parameter | Value |
|---|---|
| 2024 | |
| Regulatory asset base | $120 million |
| Line charge revenue | $24.6 million |
| Capital expenditure | $4.9 million |
| Operating expenditure | $14.2 million |
| Customer connections | 14,326 |
| Energy delivered | 230 GWh |
| Peak demand | 36 MW |
| Total line length | 2,187 km |
| Distribution and low-voltage overhead lines | 1,592 km |
| Distribution and low-voltage underground cables | 281 km |
| Subtransmission lines and cables | 313 km |
| Poles | 20,411 |
| Distribution transformers | 2,536 |
| Zone substation transformers | 22 |
| Average interruption duration (SAIDI) | 208 minutes |
| Average interruption frequency (SAIFI) | 2.11 |
Generation assets
In August 2019 the company's proposed hydro project on the Waitaha River was denied a concession by the Department of Conservation.[4] In 2024 the project was scheduled in the government's Fast Track Approvals Act.[5]
Operational
| Name | Type | Location | Capacity (MW) | Annual generation (average GWh) | Commissioned |
|---|---|---|---|---|---|
| Amethyst | Hydro | Hari Hari, Westland | 7.6 | 50 | 2013 |
Proposed / under construction
| Name | Type | Location | Projected capacity (MW) | Status |
|---|---|---|---|---|
| Waitaha | Hydro | Waitaha River, Westland | 23 | Proposed |
