Producing biomass: Biomass types: Crop residue: Nut shells
Shells and hulls of nuts such as almonds, macadamias and walnuts are a woody waste that can be used to generate power.

Evaluating the economics

Almond hulls and shells are a woody waste with energy content levels comparable to other woody biomass and low moisture content.

A cost-benefit analysis to determine the net financial benefit of producing energy from almond hull and shell waste is described in the report, Renewable Energy Production from Almond Waste, published by the Almond Board of Australia Inc.

The analysis compares 4 scenarios:
  • Sell almond waste as cattle feed.
  • Install a (100 kW) biomass gasification system to generate electricity to meet average demand of the hulling/shelling process. Sell the remainder of the almond waste as cattle feed.
  • Install a (550 kW) biomass gasification system to generate electricity to meet peak demand of the hulling/shelling process. Sell the remainder of the almond waste as cattle feed.
  • Install a (1,923 kW) biomass gasification system to generate electricity using all almond waste.

The report also:

  • describes the energy demand and carbon footprint across almond industry producers, processors and packers—the key feature of the energy demand analysis was the significant amount of electrical energy needed to pump water for irrigation
  • assesses technological options for producing energy from woody waste such as hulls and shells.

Contacts

James Joyce

Pyrocal Pty Ltd

Toowoomba, QLD 4350,
Phone: 07 4639 2009

office@pyrocol.com.au
David Hall

Energy Developments and Resources (EDR)

4 Glenneth Court, Bonny Hills NSW 2445,
Phone: +61 (0)2 6585 5368

david.hall@energydr.com.au
EDR Energy Development and Resources Pty Ltd.

Contact: David Hall

4 Glenneth Court, Bonny Hills, NSW 2445
Phone: +61 (0) 26585 5368 and +61 418206293

david.hall@energydr.com.au
Ben Brown

Almond Board of Australia

PO Box 2246, Berri, South Australia 5343
Phone: 0447447223

bbrown@australianalmonds.com.au
Suncoast Gold Macadamias

Suncoast Gold Macadamias

Drummond Drive, Gympie, QLD 4570,
Phone: 07 5482 0000

Shane Johnson

General Manager, Pacific Gold Macadamias

170 Rosedale Road, Bundaberg, Queensland 4670

sjohnson@pacificgold.com.au
Dr Mark Siebentritt

Mark Siebentritt Seed Consulting Services

206A Hutt Street, Adelaide, SA 5000
Phone: 0418 603 015

mark.siebentritt@seedcs.com.au
Almond Board of Australia Inc.

Almond Board of Australia Inc.

9 William St., Berri, SA 5343
Phone: 08 8582 2055

admin@australianalmonds.com.au