MILLAQUIN MILL OPERATES the boiler station for 12 months per year to supply steam to the adjacent sugar refinery and distillery in addition to the mill process during the crushing season. Prior to 2010, up to 20 000 tonnes of coal per year was required. As part of the mill upgrade program commenced in 2009, a number of energy efficiency projects were undertaken to reduce fuel costs and to limit the potential carbon tax liability. Energy related projects included: install 6 MW T/A set ex-Ord sugar mill; air heater on #2 boiler; electrification of #2, 3 & 4 mill drives; primary juice heating with plate heat exchangers using V4 & V3 vapour; C massecuite CVP on V2 vapour; install 2.5 m BHEM as new 5th mill; bagasse drying mill for stored bagasse; pressurised boiler feedwater tank. As a result of these projects there was a 5–7 unit reduction in steam % cane and a 60–70% reduction in extraneous fuel usage (in particular, coal). It was demonstrated that as a result of the energy efficiency gains, and the supplementary use of some alternative renewable fuels, coal usage could be eliminated.