Geothermal

Ngati Tuwharetoa Geothermal Assets is a wholesale Steam and Brine Supply Business currently supplying a mix of industrial customers in Kawerau.  Geothermal Steam is the ideal process heat as it is:

  • Reliable, runs 24 by 7 all year
  • Produced locally, not reliant on long distance pipelines that can break down
  • Renewable, the heat source from the earth sustains heating the fluid in perpetuity
  • Low Carbon, the CO2 emissions are approx. 25% of gas raised steam equivalent
  • Commercially attractive, we have a network of assets and existing customers ensuring that all customers gain benefit from our scale.

Our steam is currently used in the production of:

  • Newsprint, all of New Zealand’s Newsprint is dried using only geothermal steam
  • Dried Timber, 2 International scale sawmills use geothermal for their timber drying
  • Kraft Pulp, our steam is used along with Bio Fuel in the production of Kraft pulp in Kawerau
  • Tissue Products, Tissues, Handy Towels and Toilet paper, dried using clean food grade steam created by heating clean water with geothermal steam
  • Electricity, our steam is used to generate approx. 30 Megawatts of electricity, enough for over 20,000 homes worth.

Future Opportunities

We hold environmental permits (Consents) to double our production from the Kawerau field.  We are looking for new customers.  We can provide a complete steam and brine supply service including:

  • Geothermal Steam Supply to the customers door, from 5 to 15 Bar
  • Geothermal Brine Supply to the customers door, from 100 to 150 degrees C
  • Clean Steam Supply to the customers door, from 5 to 15 Bar
  • Condensate Collection and Re-Injection
  • Brine Re-injection

Using geothermal steam and brine for process heat and electricity generation is a permitted activity within the Kawerau District.  Kawerau is an ideal location for Industrial processes due to:

  • The presence of existing large Industrial businesses which has created strong support services, e.g heavy engineering, spares supplies,
  • Located on a Rail line, only 100km from New Zealand’s largest deep water port (Tauranga)
  • Located on the Off Highway forestry road network that connects to over 200,000 hectares of sustainably managed plantation forest.
  • Available flat land zoned for Industrial use
  • Many Industrial activities already deemed to be permitted activities

 

Electricity