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Welcome to our page with data for New Zealand - Direct uses

 
DIRECT USES
Total thermal installed capacity in MWt:
393.22
Direct use in TJ/year
9,552
Direct use in GWh/year
2,653.5
Capacity factor
0.77
 

Direct use applications are found in both the North and South Islands. The most common application for the lower temperature resources is for bathing (9 sites identified), with space and water heating to a lesser extent, and occasional direct use for frost protection and irrigation. Higher temperature resources found in the Taupo Volcanic Zone are used for greenhouse heating, prawn farming, glasshouse heating, kiln drying of timber (at Kawerau), and for special tourism development (Rotorua and Wairakei).

The Kawerau facility, pulp and paper manufacturing, now accounts for 56% of the national geothermal direct-use. It is also the largest industrial use in the world and is set to expand further to adjacent industrial users.

Geothermal heat pumps are only just taking off in the country. There are now multiple companies in the country that can supply the necessary services for both residences and commercial users. The majority of the applications appear to be water source installations. Most installations are in the colder part of South Island at Queenstown, though there are installations in Auckland with the luxury housing market. Commercial buildings owners are recognizing that geothermal heat pumps should be considered, and an initial project has been installed at the Dunedin airport (South Island).

The various applications are:

19 MWt and 181 TJ/yr for space heating;
24 MWt and 379 TJ/yr for greenhouse heating;
17 MWt and 273 TJ/yr for fish farming; 224 MWt and 6104 TJ/yr for industrial process heat;
74 MWt and 1,733 TJ/yr for bathing and swimming;
28 MWt and 843 TJ/yr for other uses (irrigation, frost protection, geothermal tourist park);
7.22 MWt and 39 TJ/yr for geothermal heat pumps.

The total for the country is 393.22 MWt and 9,552 TJ/yr

Taken from the paper by John W. Lund, Derek H. Freeston, and Tonya L. Boyd: "Direct Utilization of Geothermal Energy 2010 Worldwide Review"; published in Proceedings of the World Geothermal Congress 2010, Bali, Indonesia, 25-29 April 2010