| Company type | Private |
|---|---|
| Headquarters | , New Zealand |
Area served | West Coast |
| Services | Electricity distribution |
| Owners | West Coast Electric Power Trust (100%) |
| Website | www |
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]
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
[edit]| 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
[edit]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
[edit]| Name | Type | Location | Capacity (MW) | Annual generation (average GWh) |
Commissioned |
|---|---|---|---|---|---|
| Amethyst | Hydro | Hari Hari, Westland | 7.6 | 50 | 2013 |
Proposed / under construction
[edit]| Name | Type | Location | Projected capacity (MW) | Status |
|---|---|---|---|---|
| Waitaha | Hydro | Waitaha River, Westland | 23 | Proposed |
References
[edit]- ^ "Ownership | Westpower". www.westpower.co.nz. Retrieved 8 March 2021.
- ^ "EDB Information Disclosure - Westpower Limited - year ending 31 March 2020" (PDF). 31 August 2020. Retrieved 8 March 2021.
- ^ "Performance summaries for electricity distributors – Year to 31 March 2024". Commerce Commission. 8 July 2025. Retrieved 9 September 2025.
- ^ "Waitaha refusal stuns Westpower". Otago Daily Times. 29 August 2019. Retrieved 3 January 2022.
- ^ "Waitaha Hydro Project becomes possible through Fast Track Approvals process". Electronet. 7 October 2024. Retrieved 20 December 2025.
External links
[edit]
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