MINIMISING AND MITIGATING IMPACTS - Kumba Iron Ore
MINIMISING AND MITIGATING IMPACTS - Kumba Iron Ore
MINIMISING AND MITIGATING IMPACTS - Kumba Iron Ore
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A monthly meeting is held by mine energy champions, during which<br />
progress against targets and new projects regarding energy and the<br />
environment are discussed.<br />
By the end of 2013, a climate adaptation plan for <strong>Kumba</strong>, detailing<br />
the risks and associated mitigation plans, will have been put in place.<br />
This will be supported by the development of a regional climate<br />
model to identify key site adaptation requirements.<br />
The total energy consumption for the group rose by 10.7% to<br />
7,046,889 gigajoules (GJ) in 2011 (2010: 6,365,277GJ), owing to<br />
rising waste stripping requirements and expansions. Energy intensity<br />
also rose by 20% to 0.177GJ per tonne of ore. Of the total energy<br />
consumed, electricity purchased accounted for 26% while 74% was<br />
generated from fossil fuels.<br />
Anglo American plc uses its Group Technical Standard as an energy<br />
and emissions management standard for the Group. Gap analyses<br />
for full compliance were conducted during the year by Anglo<br />
American Technical Services at all of <strong>Kumba</strong>’s operations.<br />
Sishen mine’s compliance was found to be 68% in March and 88%<br />
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to 68% over the same period, and Kolomela mine’s compliance<br />
increased from 28% to 40%. Full compliance is targeted for<br />
December 2012.<br />
ENERGY CONSUMPTION (million GJ) <strong>AND</strong><br />
ENERGY INTENSITY (GJ/tonne ore)<br />
9.0<br />
8.0<br />
7.0<br />
6.0<br />
5.0<br />
4.0<br />
3.0<br />
2.0<br />
1.0<br />
0.0<br />
2007 2008 2009 2010 2011<br />
Consumption Intensity<br />
ENERGY SAVING INITIATIVES UNDERTAKEN OR COMPLETED DURING 2011<br />
ENERGY CONSUMED FROM FOSSIL FUELS<br />
(DIRECT) (million GJ)<br />
2011 2010<br />
Sishen mine 4.16 3.78<br />
���������� ���� 0.42 0.42<br />
Kolomela mine 0.65 0.34<br />
Group 5.23 4.54<br />
ENERGY CONSUMED FROM ELECTRICITY<br />
PURCHASED (INDIRECT) (million GJ)<br />
2011 2010<br />
Sishen mine 1.64 1.70<br />
���������� ���� 0.10 0.10<br />
Kolomela mine 0.07 0.02<br />
Group 1.82 1.82<br />
TOTAL ENERGY CONSUMED<br />
(DIRECT <strong>AND</strong> INDIRECT) (million GJ)<br />
2011 2010<br />
Sishen mine 5.80 5.48<br />
���������� ���� 0.53 0.52<br />
Kolomela mine 0.72 0.36<br />
Group 7.05 6.36<br />
Energy savings potential<br />
Carbon emission<br />
savings potential<br />
Location Project<br />
(GJ per year) (CO2e tonnes per year)<br />
Sishen mine Installation of solar water heaters as part of Sishen mine’s hostel<br />
conversion process.<br />
1,518 39<br />
Replacement of a dust extraction system with a dust<br />
suppression system that uses smaller motors.<br />
30,758 39<br />
Installation of solar water heaters on mine houses in town. 2,490 39<br />
Installation of solar water heaters at Sishen mine changehouses.<br />
39 39<br />
Diesel energy efficiency management system (DEEMS) used<br />
to track diesel performance and to log and track interventions.<br />
Diesel saving of 171,262 litres for 2011.<br />
6,186 39<br />
����������<br />
mine<br />
0.20<br />
0.16<br />
0.12<br />
0.08<br />
0.04<br />
0.00<br />
Changes to the standard fine ore DMS flow line at the<br />
���������� ������<br />
Savings to be quantified Savings to be quantified<br />
����������� �� ���������� ���� ���� ������� Savings to be quantified Savings to be quantified<br />
Kolomela mine Installation of 226 solar water heaters on houses completed by<br />
�������� �����<br />
1,485 424<br />
Sustainable Development Report 2011<br />
75<br />
Sustainability performance