Upper Fraser Hydro Power Scheme
New Zealand's second highest head hydro scheme (485m), featuring a 4.7km pipeline of high-pressure GRP and steel penstock across extreme 60% slopes.
SERVICES
Installation Civil
Location
Clyde, Central Otago
Status
Completed in 2019
Works Description
The Upper Fraser Hydro Power Scheme includes an intake weir, penstock, transformer, and powerhouse designed to generate electricity for 4,000 households. The pipeline comprised 4,000m of high-pressure GRP (1000-1100mm) requiring full concrete encasement over 123 bends. The final 950m of penstock is high-pressure steel continually welded in-situ on a 58% slope.
Extreme Terrain
Pipe bench installation on slopes exceeding 60% using complex drill and blast techniques.
High Pressure Penstock
4km of concrete-encased GRP and 950m of in-situ welded steel piping.
Power Generation
Supporting a 2.0 m3/s flow to power 4,000 households in the region.
