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Residue Recovery Costing Tool Details
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Under development ...
Notes:
Choose from the following ranges if the default values are not acceptable
Recovery
| Recover to landing | $2 to $6 per tonne |
| Stacked by crew | $3 to $6 per tonne |
| Forward to landing | $6 to $10 per tonne |
Processing
| Hog at power plant | $1.5 to $3 per tonne (includes machine to load hogger) |
| Hog at landing | $5 to $10 per tonne (includes machine to load hogger) |
| Chip on Cutover | $8 to $20 per tonne |
| Process at CPY | $5 to $9.50 per tonne (includes machine to load hogger) |
Loading
| Truck Loading, | $2 to $4 per tonne (excavator) |
| Second stage Truck Loading | $1.5 to $2.5 per tonne (rubber tyred front-end loader, comminuted material) |
Transport costs are calculated off a regression equation, this equation was developed based on costs of running trucks in January 2007. First stage transport in this calculator is the same as "1st Stage Truck" of the residue transport cost calculator. On highway transport is the same as "Chip Truck Trailer On" and the off highway transport option the same as "Semi Bin Off".
The calorific value used to calculate the cost in $/GJ, was determined by the calorific value calculator
Assumptions
- Fresh green radiata residue has approximately 60% moisture content, (wet basis), likely to vary with season and location by +/- 4%.
- Drying of untreated residues will occur at approximately 4% per month, higher for exposed material, lower for large stacks or shaded material.
- Biomass loss during storage of unprocessed residues will be 0.5% per month, for chipped or hogged residues this can rise to 1% per month.
- Fibre losses will occur during processing and handling, with greater losses at in-forest processing sites.
Last modified: Thu Dec 06 15:00:31 New Zealand Daylight Time 2007
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