Smart Geothermal Direct Use

Applications

Brian Carey IEA Geothermal

www.iea-gia.org

Brian Carey

• Water

• Motive power

• Machines

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35 Years in Geothermal

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Talk about

• Smart Thinking

– Innovation

• Being Strategic

• Ideas from New Zealand

• Other peoples ideas

• Looking out

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Innovation

Ideas beyond your “Box”:

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Enlarge the box

• Expose yourself to other peoples ideas

– Work out how the ideas might apply

– Use them

• Develop your own innovative solutions

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Looking beyond the box

• Go and find others ideas

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Develop ideas beyond your box

• Creative thought

• Original innovation

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Implementable ideas

Moving Innovation Along

• Visionaries

• Entrepreneurs

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Moving Innovation Along

• Crises

• Political Imperatives

– This was so for Geothermal Energy in New

Zealand

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Desire for Security of Supply

• In New Zealand - Post world war two

• Electricity demand growing rapidly

– Growth rate of 6% per annum

• Significant investment in hydro power

development

• Two dry hydrological years

– 1947 and 1948

• Running out of electricity became a

significant political issue

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Political Issue

• Drove a focus on indigenous resources

– not reliant on imported energy

• Drove innovation in geothermal energy

– Technology to drill and research to harness

liquid dominated geothermal resources

• Government funded initial exploratory

drilling, undertook research, underwrote

risk, etc …...

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The NZ Geothermal Success

• Well developed frameworks

– Planning and Permitting

– Environmental

– Health and safety

• A stable platform for long term investment

• Geothermal has become a significant

contributor to NZ’s electricity generation

• Wide open opportunities for more direct heat

use

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Early NZ beyond the “box” thinkers

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Wide Open to Direct Heat Opportunities

• Geothermal Direct Use Targets

• These are under review

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Business Sector (p18)

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NZ GeoHeat Strategy

nzgeoheat.org.nz

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Value in Strategy ….

• Even though New Zealand has been using

geothermal energy since the 1930’s …..

And industrially for 60 years …..

• More needs to be undertaken to foster direct

geothermal use in NZ

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Practical ideas from New Zealand

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Geothermal Direct Uses

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Direct Geothermal

• Bathing

• Tourism

• Residential and commercial heating and

cooling

• Glasshouses and horticulture

• Aquaculture

• Honey processing

• Timber processing

• Milk drying

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+ more

Direct Use Statistics

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Kawerau

Other

Total

Timber & Pulp Processing - Kawerau

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Largest direct geothermal heat use in the world

Direct Heat – Kiln Drying

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Direct Heat – Creating Clean Steam

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Asaleo- Kawerau

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NST – Kawerau

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Miraka - Mokai 29

Mokai - Tuaropaki

11ha Geothermally Heated Glasshouse

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Plentyflora - Horohoro 31

Geothermally Heated Glasshouse

Bathing and

Health Spa’s

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Bathing

Novotel

Heat Plant 34

Plant room

Supply Well

Pool

Exchangers

Honey Processing

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Tourism - Wairakei Terraces

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Huka Prawn Park

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Extremophiles

• Organisms living in extreme environments

• With abilities that hold promise for

biotechnology processes, bio fuels, carbon

recycling, medicine ……

• GNS Science now has a collection of over

1200 novel unique extremophiles

• GNS 1000 Springs Project in your web

browser to find interesting information

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Good Introduction to NZ Geothermal

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Introduction to Geothermal Energy

http://www.nzgeothermal.org.nz/geo_systems.html

Geothermal Case studies

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GNS Earth Energy in your browser

From Other Nations 41

Dye Setting

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Beauty in Direct Geothermal Use

How large can you think ……

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Muchas Gracias

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