changing the face of energy in new zealand
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Changing the face of energy in New Zealand. NICK CLARKE General - PowerPoint PPT Presentation

Changing the face of energy in New Zealand. NICK CLARKE General Manager Geothermal NZGW Friday 25 November 2016 3 ENERGY MADE WONDERFUL 4 GEOTHERMAL DRILLING GEOTHERMAL THE PREMIUM RENEWABLE > Geothermal is about 16% of


  1. Changing the face of energy in New Zealand. NICK CLARKE General Manager Geothermal NZGW Friday 25 November 2016

  2. 3 ENERGY MADE WONDERFUL

  3. 4 GEOTHERMAL DRILLING

  4. GEOTHERMAL – THE ‘PREMIUM RENEWABLE’ > Geothermal is about 16% of NZ’s total electricity supply – No.2 behind hydro > Output doubled over the past decade – 3 major projects by Mercury > Kawerau 100 MW (completed 2008) > Nga Awa Purua 138 MW (completed 2010) > Ngatamariki 82 MW (completed 2013) > “Premium renewable” > Small physical footprint > Sustainable use of heat from reservoirs 2-3km underground (closed cycle, re-injection) > Base-load, normally runs 24/7; the only renewable not weather-dependent – 2x output of hydro; 3x wind; 6x solar > Geothermal displacement of gas/coal generation is the single-biggest reduction to date in NZ’s emissions profile – 2 million tonnes C02-e per year 5 GEOTHERMAL

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