The Pilbara Powerhouse The North Wests Renewable Energy Export - - PowerPoint PPT Presentation

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The Pilbara Powerhouse The North Wests Renewable Energy Export - - PowerPoint PPT Presentation

Nov 24, 2022 11 likes •155 views

The Pilbara Powerhouse The North Wests Renewable Energy Export Potential Dr Matthew Stocks 100% Renewable Energy Group Research School of Engineering The Australian National University North West Interconnected System re100.eng.anu.edu.au

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Dr Matthew Stocks

100% Renewable Energy Group Research School of Engineering The Australian National University

The Pilbara Powerhouse

The North West’s Renewable Energy Export Potential

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North West Interconnected System

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New generation capacity worldwide

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Solar learning curve

(make more stuff and we get better at it) Solar panels 200 times lower cost than 1970 10 times lower cost than 2008

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SLIDE 5

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The Pilbara advantage

Australia’s best solar resource. Within 10% of world best.

Supply all of Australia’s annual electricity needs

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Wind

Relatively good resource in elevated location for tropical Australia. Very good wind in South West WA

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Pumped Hydro Storage

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High voltage DC transmission (HVDC)

  • Transmit gigawatts over thousands of

km

  • +/- 1.1 million volts
  • Loss: 10% between Perth and Pilbara
  • >200GW of HVDC systems
  • Examples

– Basslink (Vic-Tas): 400kV, 290km, 500MW – ABB (China): 1100kV, 3000km, 12GW

NEM NWIS SWIS

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Pilbara exports today

Iron ore

  • Australia’s biggest

export industry

~ 800 million tonnes per annum

  • Emissions

– 2 Fe2O3 + 3C => 4 Fe + 3CO2 – High carbon emissions from conversion to iron with coking coal (overseas) – 300MT of CO2 per annum

  • Double Australia’s total emissions

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Renewable Hydrogen

Electrolysis

  • 2 H20 + => 2 H2 + O2

Export “renewable” iron or steel instead of ore

  • Fe2O3 + 3H2 => 2 Fe + 3H2O
  • Value added export

– Need more than four times Australia’s current electricity production

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Hydrogen enabler for renewable energy exports

Direct export

  • Compress H2 and ship to Asia

Ammonia

N2 + 3H2 → 2NH3

– 160MT per annum world wide – Currently uses hydrogen from natural gas

  • CH4 + 2H2O → 4H2 + CO2
  • Significant CO2 emissions

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Hydrogen enabler for renewable energy exports

Synthetic fuels

  • Synthetic natural gas

– CO2 + 4H2 → CH4 + 2H2O

  • Liquid hydrocarbons

– Fischer-tropsch process (3n + 1) H2 + n CO2 → CnH2n+2 + 2n H2O – Essential for air travel

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The Pilbara powerhouse

  • Pilbara has worldwide solar advantages

– Huge renewable energy potential

  • Pumped hydro and HVDC enable Pilbara to drive

Australian electricity production

  • Renewable hydrogen enables low carbon exports

that can dwarf today’s

– Hydrogen – Iron – Ammonia – Synthetic fuels

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