| Monowai Power Station | |
|---|---|
 Stumps from dead trees that were drowned when the lake level was raised in the 1920s | |
.png)  Location of Monowai Power Station in New Zealand | |
| Country | New Zealand |
| Location | Southland |
| Coordinates | 45°48′42.1″S 167°31′20.6″E / 45.811694°S 167.522389°E |
| Purpose | Power |
| Status | Operational |
| Construction began | 1920 |
| Opening date | 1925 |
| Owner(s) | Southland Electric Power Board (1920-1936) Southland Electrical Power Supply (1936-1993) The Power Company (1993-1999) Trustpower (1999-2002) Pioneer Energy (2002-present day) |
| Operator(s) | Pioneer Energy |
| Dam and spillways | |
| Type of dam | Earth |
| Impounds | Monowai River |
| Reservoir | |
| Creates | Lake Monowai |
| Surface area | 31 km2 (12 sq mi) |
| Normal elevation | 180 m (590 ft) |
| Monowai Power Station | |
| Coordinates | 45°46′32.5″S 167°36′59.7″E / 45.775694°S 167.616583°E |
| Operator(s) | Pioneer Energy |
| Type | Conventional |
| Hydraulic head | 154 ft (47 m) |
| Turbines | Three |
| Installed capacity | 7.6 MW (10,200 hp) |
| Annual generation | 40 GWh (140 TJ) |
| Website Pioneer Energy website | |
The Monowai Power Station, fed by the Monowai River from Lake Monowai in Southland, New Zealand, was one of the earliest hydroelectric power stations in the country. Originally commissioned in 1925, it was refurbished between 2005 and 2007 and now contains modern turbines and plant, though the original buildings are still in use.[1]
Before its refurbishment, the station produced 6.3 megawatts (8,400 hp) and 35–40 gigawatt-hours (130–140 TJ) of electricity per year.[2] Generating capacity has now increased to 7.6 MW.[1]
- ^ a b "Monowai Power Station". Engineering New Zealand. Retrieved April 24, 2018.
- ^ Southland Regional Energy Assessment Archived 2008-10-15 at the Wayback Machine Accessed 2008-09-29.)