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MYTILINEOS GROUP
SUSTAINABILITY REPORT 2011 |73
Materials used, by weight or volume
2011
Raw materials (TON)
2,255,912
Bauxite (ΤΟΝ)
1,816,912
Limestone (ΤΟΝ)
118,579
Anhydrous alumina for electrolysis (ΤΟΝ)
317,082
Other metals (ΤΟΝ)
3,194
Alloys (ΤΟΝ)
145
Materials required for production but not incorporated in the end product
244,625
Caustic soda (new soda) (ΤΟΝ)
26,293
Calcium oxide (lime) (ΤΟΝ)
66,760
Lubricants (ΤΟΝ)
42
Tar (ΤΟΝ)
14,578
Coke (ΤΟΝ)
65,336
Aluminium fluoride (ΤΟΝ)
2,644
Baked anodes consumed in the electrolysis process (net) (ΤΟΝ)
68,972
Packaging materials
1,055
Polyester rings (423 rolls) (ΤΟΝ)
27
Pine planks (total: 1468 m
3
) (ΤΟΝ)
1,028
Total weight or volume of non-renewable materials used (ΤΟΝ)
2,500,537
Total weight or volume of materials used directly (materials present in the end product) (ΤΟΝ)
2,133,994
Bauxite
1,816,912
Alumina
317,082
Direct energy consumption
2011
Consumption of direct energy purchased from Renewable Energy Sources (TJ)
0
Consumption of direct energy purchased from non-renewable energy sources (TJ)
18,260.25
NATURAL GAS*
14,886.00
DIESEL (DFB)
0.80
DIESEL FUEL FOR HEATING
0.01
DIESEL FUEL FOR TRANSPORT
0.04
FUEL OIL
3,373.40
Consumption of direct energy produced by mining, harvesting or conversion from other energy forms (TJ)
3,937.00
STEAM
3,937.00
Primary energy exported by the Company
0
Total direct energy consumption (TJ)**
22,197.25
Energy consumption & conservation
The reduction of energy consumption in its production departments is a key priority for the Company. In what in particular regards consumption in peripheral
departments (not directly involved in production), the Company’s approach relies on sensitising employees to the rational management of light sources and
electrical equipment. The actions taken to this end (work quality checks, daily and weekly checks of the alumina quality, mobilisation-sensitisation of the
personnel involved, optimisation of parameters, swift identification of problem-prone basins, improvements in equipment and methods, including research and
experimentation), resulted in a specific consumption of 13,088 kWh/t – one of the best among all aluminium plants. The Company’s direct energy consumption
in 2011 stood at 22,197 TJ. The total use of direct energy refers to energy from non-renewable sources which is purchased by the Company for its own
consumption and, more specifically, to natural gas and diesel fuel for transport/heating and for the Company’s production. Additionally, there was no consumption
of direct energy from renewable sources, while the energy produced by the Company stood at 3,937 TJ.
* Natural gas (4,134.932 ΜWH, 1MWh=3,6 * 10-3 TJ).
** Total direct energy consumption = direct primary energy purchased + direct primary energy produced – direct primary energy sold.
ALUMINIUM S.A.
