Story: Geothermal energy

Greenhouse orchids

Greenhouse orchids

The tropical orchid Phalaeopsis is grown in large, geothermally heated greenhouses, using waste heat from the nearby Wairākei power station. The atmosphere inside the greenhouse mimics the monsoon conditions of the orchid’s natural habitat. With approximately 250,000 plants, this is the largest concentration of these orchids grown for cut-flower production in the world. A forced-air heat exchanger operates above the plants.

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GeoHeat
Photograph by John Lund

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How to cite this page:

Carol Stewart, 'Geothermal energy - Other uses of geothermal energy', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/photograph/5434/greenhouse-orchids (accessed 14 August 2020)

Story by Carol Stewart, published 12 Jun 2006