Ngawha geothermal power stations

 

Key statistics

Size of Geothermal Field 20-40km2
Number of Power Stations 2
Generating Capacity 25MW
Length of Pipe 10km
Capability (per annum) 200GWh
Average power station availability 96%

 

Power station 1 (OEC 1, OEC 2)

Commissioned 1998
Generating Capacity (gross) 2 x 5.8MW
Turbine Specifications 3MW LP, 3MW HP
Ormat, Nevada, USA
Heat Exchangers Ormat, Nevada, USA
Motive Fluid Pumps 6 Stage vertical units de-rated to 5 Stage
Goulds, Texas
Pentane 60,000 L

 

Power station 2 (OEC 3)

Commissioned 2008
Generating Capacity (gross) 1 x 20MW
Turbine Specifications 2 x 12MW HP
Ormat, Nevada, USA
Heat Exchangers Ormat, Nevada, USA
Motive Fluid Pumps 8 Stage vertical units
Goulds, Texas
Pentane 96,000 L