GLOBAL RENEWABLES & HYDER WASTE SYSTEM COST CALCULATOR

 Different people may be responsible for understanding the detail of individual waste management system components  Global Renewables identified the need for a “big picture overview” of the full system  Likely to be the biggest financial commitment any council will make (when you consider the full system)  Aim to minimize the costs to councils of achieving required resource recovery level

KEY ASSUMPTIONS  AWT diversion rates:  2-bin system 59%  3-bin system 57%  3-bin + food system 43%  4-bin system 43%  Default waste collection costs:  Residuals - $1.00/lift  Recycling - $1.20/lift  Organics - $1.40/lift  Other (adjustable) default costs  Landfill contract (ex. levy) - $65/t  Recycling gate fee - $25/t  Compost gate fee (garden organics) - $110/t  Compost gate fee – (garden and food) - $130/t  AWT processing cost (ex. disposal) - $150/t  Landfill disposal of AWT residuals - $45/t

INTERESTING FINDINGS  Based on trials with several councils, the model has been accurate in predicting diversion from landfill and total system costs  Within 1-3% of reported diversion rate  Default costs in the right ballpark  Ability to adjust with user-specific information as available  Lowest cost option to reach 66% target appears to be 3-bin  Dry recyclables  Garden organics to open windrow processing  Residual to AWT  The 3-bin system is marginally the lowest cost per tonne of waste diverted as well as total system costs (if GO contamination is low)  BUT – very much “horses for courses” depending on local conditions - e.g. can low GO contamination be achieved?  Most councils won’t achieve 66% target without AWT or very high GO percentage and relatively low residuals percentage

3 BIN – INNER SUBURBAN

3 BIN - INNER

3 BIN – OUTER SUBURBAN

3 BIN -OUTER

2 BIN

SYSTEM COMPARISON TYPICAL RESULTSDiversion System Cost over 10 years Cost/tonne of Waste Diverted Bin ConfigurationRegion TypeLandfillAWTLandfillAWTLandfillAWT 2 binsuburban Sydney20%67%$80M$77M$739$216 3 bininner suburban Sydney46%77%$124M$120M$307$176 3 bin + Foodinner suburban Sydney58%76%$131M$134M$325$219 3 binouter suburban Sydney54%81%$178M$173M$251$165 3 bin + Foodouter suburban Sydney65%80%$195M$199M$275$205  Overall costs broadly similar between AWT and landfill scenarios  Diversion rate significantly higher in all scenarios using an AWT  Differential between cost per tonne of waste diverted is highest in areas with low levels of garden organics

MODEL STRUCTURE  Aims to take account of total system costs  Equipment (MGBs / bench top bins)  Education  Bin lifts  Processing  Disposal  Does NOT address landfill external costs (other than GHG) or collection fleet effect on roads  Generic structure based on 10 year assessment ( )  Pre-loaded with NSW WARR Data  Allows for council-specific data to be included  Could be further modified to suit individual councils

LIVE DEMONSTRATION…..

CONTACT  If you would like further information about this presentation please contact John Lawson at Global Renewables – (02)  The model will also be available soon on the Global Renewables web site -