Story: Wind and solar power

Wave-powered generator

Wave-powered generator

Waves are a powerful source of energy, but wave power is an untested technology in New Zealand. The system illustrated here is in commercial production in Scotland. Known as the oscillating water column, it uses air pressure produced by the back-and-forth movement of the waves to drive turbines. When a wave enters the column it forces air past a turbine. As the wave retreats air is drawn back past the turbine and keeps it turning. The turbines are connected to a generator, which produces electricity.

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Te Ara - The Encyclopedia of New Zealand

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Source: Earth Science Australia

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How to cite this page:

Veronika Meduna, 'Wind and solar power - Renewable energy in New Zealand', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/diagram/4918/wave-powered-generator (accessed 18 September 2019)

Story by Veronika Meduna, published 12 Jun 2006