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Whitehaven Coal Limited : Annual Report 2013
53 Whitehaven Coal Limited Annual Report 2013 5 Environment 5.8 ENERGY & GREENHOUSE EMISSIONS Energy Whitehaven is a participant in the Energy E ciency Opportunities Program, in accordance with requirements of the Energy E ciency Opportunities Act as coordinated by the Commonwealth Department of Resources, Energy and Tourism. Whitehaven is in its third year of its rst ve year reporting cycle, with our Tarrawonga, Rocglen and Werris Creek operations involved in this cycle based on energy consumption gures. Performance In December 2012, Whitehaven published its Public Report under the program, which is available on the Whitehaven website. The report identi ed energy consumption levels as follows:- • Rocglen -- 371,098 GJ • Tarrawonga -- 690,254 GJ • Werris Creek -- 514,199 GJ The public report also identi ed energy savings opportunities for these projects over the reporting period. Rocglen operation implemented three opportunities resulting in energy savings of 1,345 GJ, with a further four opportunities still to be implemented, representing possible savings of 937 GJ. A further four opportunities still remain under investigation, which could result in a further 8,608GJ in energy savings. Tarrawonga implemented six opportunities resulting in energy savings of 8,327 GJ. A further four opportunities remain to be implemented, with potential savings of 28,996 GJ, whilst a further four opportunities require additional investigation, which could result in a further 12,996 GJ in energy savings. Werris Creek implemented three opportunities resulting in energy savings of 5,240 GJ. A further six opportunities are still to be implemented representing savings of up to 16,856 GJ. Another six opportunities are still under investigation, which could result in a further 21,867 GJ in savings. Whitehaven is due to provide its public and government report for the FY2013 by 31 December 2013. Greenhouse emissions Whitehaven reports Greenhouse emissions through the National Greenhouse and Energy Reporting (NGER) system. Development of the FY2013 report is well underway in preparation for lodgement by 31 October 2013. Key issues that will in uence the outcome of the FY2013 report include the cessation of production activity at our Sunnyside operation during November 2012. The increased production activity at our Narrabri operation with commencement of the rst longwall will also in uence overall electricity consumption gures. In addition to these issues, Whitehaven progressed a drilling program during this reporting period to directly measure methane content of coal seams within our projects. As a consequence of this work, Whitehaven will be able to report fugitive emissions from the open cut pits based on measured gas content, as compared to previous reports whereby default factors for NSW were used. The direct measurement of gas content from the drilling program has con rmed that the methane levels in the coal seams are substantially less than the level applied through use of the default factor. During the FY2012 NGER's reporting period, Whitehaven operations contributed 414,871t CO2-e in Scope 1 and Scope 2 greenhouse emissions. In the prior reporting period, Whitehaven operations contributed 460,831t CO2-e in Scope 1 and Scope 2 greenhouse emissions. Actual energy production was also higher during FY2012 compared to FY2011. Our emissions pro le over the next reporting period, which will include production levels from our Narrabri project at or near maximum production levels will provide a better understanding of our emissions performance comparative to previous years. 5.9 WASTE GENERAL Whitehaven manages waste in accordance with waste management plans relevant to each operating site. Waste oil and scrap metal are recycled via waste management contractor collections. Whitehaven also recycles cardboards, papers, and printer ink cartridges from administration areas. Across our operations, 1,036t of general waste was collected by waste collection contractors for additional sorting and classi cation at the contractor's facilities. Further to this, 510,800L of waste oil was collected for recycling by a waste oil contractor, and 158t of scrap metal collected by scrap metal merchants for recycling. Mine waste (overburden) is managed in accordance with each operating sites Mining Operations Plan, and is pro led as either out of pit or in pit overburden emplacement. This material is rehabilitated by placement of subsoil and topsoil, and planted out to native vegetation and/or pasture establishment. Waste from the coal washing process at our CHPP is separated into coarse and ne reject product. Coarse reject is backloaded by truck to our Tarrawonga pit, where it is emplaced within an approved emplacement area within the mine pit, and subsequently buried by overburden material before nal shaping and rehabilitation. Fine reject is pumped from the CHPP to a series of settlement ponds where it is allowed to consolidate, with water from the reject recycled through the plant. The consolidated reject is excavated and transported to a former mine void at our Melville emplacement area, where it is used to ll the void to facilitate nal rehabilitation. Whitehaven participated in a waste audit during FY2013 which was coordinated by the EPA.
Annual Report 2012