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Transcript of Transformational adaptation for the wheatbelt: energy tree cropping - Richard Bennett, Future Farm...
![Page 1: Transformational adaptation for the wheatbelt: energy tree cropping - Richard Bennett, Future Farm Industries CRC](https://reader034.fdocuments.net/reader034/viewer/2022052623/559c5f6c1a28abec3d8b46a6/html5/thumbnails/1.jpg)
Richard Bennett; Amir Abadi; Kevin Goss
Transformational adaptation for the wheatbelt: energy tree cropping
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Australian mallee system
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Mallee system 1 - production
Belts of coppicing, drought tolerant trees
•Integration with dominant grain, meat and wool enterprises
•Coppicing trees allow regular and repeated harvests (3-5yrs)
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Contractors harvest and transport wood biomass
• harvesting & chipping at >60 T/h
• economic transport distance ~50 km
Photo of harvester prototype in action
Mallee system 2 – harvest/transp.
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Biomass processing centres• renewable energy• fuel• char • oil
Mallee system 3 - processing
Energy source that is:• C neutral to C positive • Base-load – complements wind and solar
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The path to an industry
A viable industry before 2025
Generating 176MW
Offsetting 9.1 Mt CO2-e
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The path to an industry
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The path to an industry-- cost of supply --
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The path to an industry-- cost of supply --
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The path to an industry-- cost of supply --
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The path to an industry-- cost of supply --
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The path to an industry-- cost of supply --
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The path to an industry-- cost of supply --
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The path to an industry-- cost of supply --
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The path to an industry-- scale of demand --
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The path to an industry-- scale of demand --
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The path to an industry-- scale of demand --
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Challenges to industry development
Cost of harvest and haulage largest hurdle–Prototype harvesters under development
– Initial cost biomass cost offsets?
Ongoing sustainability considerations
– early reliance on stored soil moisture / nutrients
– productivity decline long-term
– Net C balance of roots
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Transforming agriculture Environmental benefits to farms and regions
• Provide salinity and biodiversity benefits
• Smart belt placement can improve water and nutrient balances
• Neutral or positive carbon balance
• Viable industry will displace fossil fuels emissions to 1.3 MT CO2-e / year
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Transforming agriculture Economic benefits to farmers
• Improved animal welfare – shelter from elements
• Diversify farm incomes – complement existing
agriculture
• Maintains cash flow – regular harvests
• Stability of yield – lower year on year risk
• Higher total productivity – use of excess resources
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Transforming agriculture Economic benefits to regions
• New regional industries – harvesting, transporting
and processing
• Provide local base-load power to regional areas
reducing transmission losses
• Improved energy security
• Mallees for bioenergy will be strategically important
for Australia's renewable energy future
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Key references
• Future Farm Industries CRC (2010) Energy Tree Crops: Renewable energy from biomass could be the driver to large scale adoption of woody crops and to structural improvement to dryland agricultural systems in Australia
• Bartle, J. Abadi, A. (2010) Toward Sustainable Production of Second Generation Bioenergy Feedstocks. Energy Fuels 24, 2–9.
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International perspective
Int. Energy Agency projections:
33% market share for bioenergy by 2050
Au:
0.7% total electricity, 0.45% transport fuels
Global:
10% total energy (5% wood heating)
Finland:
23% primary energy
75% thermal energy
Sweden:
32% total energy – exceeding oil in 2009
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Transforming agriculture Economic benefits to farmers
Bartle & Abadi (2010) - undiscounted cash flow per ha
15
10
5
0
Years
$ ,000/ha
1 20 30 40 50
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The path to an industry-- scale of demand --
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The path to an industry-- scale of demand --
Equivalent to ~2 million (~15 %) of today’s cars
off the road for 1 yr
Or ~3% of cars off the road every year