Water Journal : Water Journal November 2011
refereed paper greenhouse emissions A number of opportunities identified by the CCA project are currently being progressed through additional studies. For example, food waste co-digestion at wastewater treatment plants and large wind turbines are now the subject of further feasibility, risk and economic assessment. The CCA tool is a powerful tool for addressing carbon mitigation that is of interest to a wide range of Australian water utilities. As a result, the Water Services Association of Australia (WSAA) funded further development of the Sydney Water CCA Tool for use by its members. To date, 15 Australian water utilities have purchased a licence for the Tool, with further interest from around the world. The CCA Tool won the Research Merit Award at the 2010 AWA NSW Awards and contributed to Sydney Water being awarded the 2010 NSW Green Globe Award for public sector energy management. Conclusion This study has allowed Sydney Water to: • Assess the cost and abatement potential of a large range of carbon abatement opportunities; • Compare the relative cost effectiveness of emission reduction opportunities; • Test the impact of changing electricity and carbon prices on cost effectiveness; • Develop a broader and more detailed Greenhouse and Energy Strategy, including new emission reduction targets. The strength of the CCA Tool is in its flexibility to quickly and easily generate new scenarios and present the results according to the needs of the user. The standardised Option Input Template ensures a consistent basis for comparing opportunities. The CCA project is helping Sydney Water to meet its carbon neutrality commitment at least cost and to prepare for a future carbon price. Acknowledgements Thanks to Adam Lovell of WSAA for his support in developing the CCA Tool into a product available under licence to Australian water utilities. The Authors Phil Woods (email: philip. woods@sydneywater. com.au) is the Principal Eco-Efficiency Analyst at Sydney Water and is the main contact for external organisations interested in the CCA Tool. Jessica Sullivan (email: jessica. email@example.com) is currently the Climate Change Adaptation Project Manager at Sydney Water and was the project manager responsible for delivery of the CCA Tool. Matt Ferguson is a Senior Technical Advisor in Product and Servicing Strategies at Sydney Water and is the technical specialist behind the CCA Tool. Rob Hynes is a Principal Consultant with four years' experience in Carbon Abatement Strategy for a number of water utilities. Rick Walters is Principal Consultant -- Sustainability & Climate Change with WorleyParsons. Mike Jones is a Principal Consultant with Energetics and has been working within the Sydney Water Energy Partnership for the past four years. References Department of Climate Change & Energy Efficiency (DCCEE), 2010: 2008--09 National Greenhouse & Energy Data by Corporate Group. DCCEE, Canberra, Australia. McKinsey & Company, 2008: An Australian Cost Curve for Greenhouse Gas Reduction: www.mckinsey.com/clientservice/sustainability/ Costcurves.asp. Figure 4. Example of a Cost of Carbon Abatement Curve produced by the CCA Tool. Levelised cost, $/tCO2e Annualised average GHG savings, t CO2e Project Type Energy Efﬁciency Renewable Energy Generation Waste Heat GHG Capture/ Destruction Energy Capture presented at Delivering innovative water, wastewater and reuse solutions.
Water Journal December 2011
Water Journal September 2011