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Biomass assessment and small scale biomass fired electricity generation in the Green Triangle, Australia
Authors:Luis C Rodriguez  Barrie MayAlexander Herr  Deborah O’Connell
Affiliation:a CSIRO, Sustainable Ecosystems, Bellenden Street, Crace, Gungahlin, Canberra GPO BOX 284, Australia
b CSIRO, Sustainable Ecosystems, Clayton, Victoria, Australia
Abstract:Coal fired electricity is a major factor in Australia’s greenhouse gas emissions (GHG) emissions. The country has adopted a mandatory renewable energy target (MRET) to ensure that 20% of electricity comes from renewable sources by 2020. In order to support the MRET, a market scheme of tradable Renewable Energy Certificates (RECs) has been implemented since 2001. Generators using biomass from eligible sources are able to contribute to GHG emission reduction through the substitution of coal for electricity production and are eligible to create and trade RECs. This paper quantifies the potential biomass resources available for energy generation from forestry and agriculture in the Green Triangle, one of the most promising Australian Regions for biomass production. We analyse the cost of electricity generation using direct firing of biomass, and estimate the required REC prices to make it competitive with coal fired electricity generation. Major findings suggest that more than 2.6 million tonnes of biomass are produced every year within 200 km of the regional hub of Mount Gambier and biomass fired electricity is viable using feedstock with a plant gate cost of 46 Australian Dollars (AUD) per tonne under the current REC price of 34 AUD per MWh. These findings are then discussed in the context of regional energy security and existing targets and incentives for renewable energies.
Keywords:Forest  Agriculture  Residue  Feedstock  Renewable energy certificates
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