World Power Plants

Whakamaru is a 98 MW hydro power plant in New Zealand, operated by Mercury Energy and commissioned in 1956. It ranks #10 of 24 hydro plants in New Zealand. This plant's capacity accounts for 2.23% of New Zealand's total hydro capacity of 4,388 MW. The largest hydro plant in New Zealand is Manapouri at 800 MW, making Whakamaru 8.2 times smaller. Nearby plants include Maraetai (352 MW, Hydro), Arapuni (192 MW, Hydro), and Nga Awa Purua (138 MW, Geothermal). The facility is located in the Waikato region, approximately 50 km from Taupo.

Capacity
98 MW
Commissioning Year
1956

70 years old

Owner
Mercury Energy
Location
-38.3918°, 175.8082°

New Zealand, Oceania

Context & rankings
  • 19. largest of 43 plants in New Zealand
  • #10,450 worldwide by installed capacity
  • #2,351 of 8,493 Hydroelectric plants worldwide
  • 1.47% of the installed capacity of New Zealand
Age & fleet comparison

70 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Mercury Energy operates 12 plants totalling 1,434 MW

Regional density

17 plants within 100 km, 1,786 MW combined

Nearest plant: Maraetai (7 km)

Data provenance

Location

Coordinates:: -38.391800, 175.808200
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Whakamaru is a hydro power plant producing approximately 343 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~24 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Hydro
Energy Source
Renewable
Country
New Zealand
Continent
Oceania
Data Source
Global Power Plant Database

New ZealandEnergy Profile

43
Total Plants
6.7 GW
Total Capacity
HydroGeothermalGasCoal
Top Fuels

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