ΜΕΤΚΑ | SUSTAINABILITY REPORT 2015 - page 32-33

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MYTILINEOS HOLDINGS SUSTAINABILITY REPORT
2015
ALUMINIUM OF GREECE is implementing specific continuous im-
provement projects aimed at stabilising and reducing the levels of
these emissions. Additionally, the Group’s €30 million of planned
investments, which are currently in the implementation stage, in-
volving the construction of a new static furnace for alumina and
the modernisation of the equipment in the wider electrolysis area,
are expected to reduce CO
2
emissions.
In the
Energy Sector
, a key objective is to maintain the efficiency
rates achieved in the operation of the thermal power plants of Pro-
tergia, which are among the highest in Greece, making the best
possible use of natural gas as their primary fuel. To produce elec-
tricity, the Group’s thermal plants use natural gas. This is a fossil
fuel that has a lower carbon content compared to mineral fuels,
does not release SO
2
and particles, emits less NOx (mainly N0
2
) in
exhaust gases compared to the maximum allowed quantities un-
der the applicable laws, and produces less C0
2
(by 70%) compared
to lignite-fired plants.
The unceasing efforts of MYTILINEOS Group to integrate and pro-
mote environmental awareness aspects in its corporate culture are
implemented primarily through environmental training actions and
the use of innovative applications. In line with this approach, the
Group adopted the CO
2
NS/WEBSITE application, a tool awarded
for its contribution to addressing climate change, which concerns
the Calculation and Offsetting of the Total Carbon Footprint of the
Group’s corporate websites (the parent company’s and those of its
subsidiaries), in accordance with the CO
2
Neutral Seal innovative
certification method.
By endorsing this initiative, the Group establishes its websites as
Carbon Neutral by following a specific procedure. Initially, the total
greenhouse gas emissions from the operation of the websites are
calculated using an innovative methodology. The Group then pur-
chases an amount of high-quality carbon credits equivalent to the
emissions of its websites on an annual basis. With this purchase,
the Group helps support certified projects involving the use of re-
newable energy sources and the conservation of natural resourc-
es, currently in operation in various regions around the globe.
Carbon Neutral Certificate*
Carbon impact from
the electricity of the
server and internet
infrastructure
102.0 kg
CO
2
eq
The impact from the
electricity used by the
visitors
18.0 kg
CO
2
eq
Total
120.0 kg
CO
2
eq
2014
2015
Change
METALLURGY & MINING SECTOR
Specific emissions in Bauxite production (t CO
2
/t of bauxite produced)
0.06
0.012
100%
Specific emissions in Alumina production (t CO
2
/t of hydrated alumina produced)
-
0.76
-
Specific emissions in Aluminium production (t CO
2
/t of aluminium produced)
-
14.57
-
Fluorine emissions (t CO
2
/y)
213.8
243.2
13.7%
PFC’s emissions (t CO
2
/y)*
79,558.6
65,909.6
-17.1%
ENERGY SECTOR
Specific product consumption (tCO
2
/TJ of electricity produced)
96.89
93.85
-3.5%
EPC PROJECT SECTOR
Specific product consumption (tCO
2
/t of processed metal)
5.34
4.94
-7.5%
*Perfluorocarbons (CF
4
& C
2
F
6
) are gases that contribute significantly to global warming. To illustrate this, suffice to mention that 1 tonne of CF
4
is equivalent to
7,390 tonnes of CO
2
, while 1 tonne of C
2
F
6
is equivalent to 12,200 tonnes of CO
2
. These perfluorocarbons can be reduced by controlling the frequency and duration
of the anode effect during the electrolysis process.
Specific emissions
G4-EN18
Carbon Neutral Certificate*
Carbon impact from
the electricity of the
server and internet
infrastructure
169.5 kg
CO
2
eq
The impact from the
electricity used by the
visitors
50.5 kg
CO
2
eq
Total
220.0 kg
CO
2
eq
All Group subsidiaries apply electricity-saving practices, which
involve daily and weekly checks of the quality of production stag-
es, the mobilisation-sensitisation of the personnel involved, the
optimisation of parameters, the swift identification of problems
and the introduction of improvements to the equipment used.
To this end, in 2015 KORINTHOS POWER, a subsidiary of Pro-
tergia, managed to reduce its plant’s own consumption by 3.24
TJ through the conversion and refurbishment of equipment and
more specifically, by adding a new (smaller) closed-circuit cool-
ing system which operates when the Plant is on hold.
In addition, given the activity of the Group’s power plants, it is not
possible to save primary energy in any way other than by utilising
it in the best way possible, using the best methods available. In
this respect, the goal for Protergia is to maintain the productivity
of its natural gas fired thermal power plants within the high-effi-
ciency end of the output curve and to ensure maximum reliability
and availability regarding their operation throughout the year.
G4-EN6
This is mainly due to the increase in aluminium production and
also to the increase in the production of electricity by the thermal
plans of Protergia.
In the
Metallurgy & Mining sector
, specific targets have been set
that help stabilise CO
2
emissions during aluminium production.
More specifically, primary-cast aluminium is obtained by alumina
through electrolysis. This process produces carbon dioxide, fluo-
rine emissions and perfluorocarbons (PFCs).
*The volume of Scope 3 emissions refers only
to METKA, with the exception of business
travel, which also includes the performance of
Protergia.
2014
2015
3.793.740,7
4.610.939
ΣΥΝΟΛΟ
4.058.973,6
1,489,015.2
2,304,725.5
2013
2,353,548
2,257,391
Other indirect greenhouse
gas emissions (Scope 3)*
Other significant emissions
2,868.6
4,238.2
1,999.2
5,360.6
1,619.5
4,998.1
2014
2015
100%
80%
91,8%
88,3%
11,5%
8,0%
0,2%
0,2%
60%
40%
20%
0%
Percentage of emissions (Scope 1 & Scope 2)
by activity sector
Emissions (t CO
2
eq)
Direct greenhouse gas
emissions (Scope 1)
Indirect greenhouse gas
emissions (Scope 2)
Fuels (CO
2
)
Processes (CO
2
)
Processes (PFCs)
Transport (CO
2
)
1,307,557.8
286,712.9
65,909.6
6,191.0
717.3
694.2
208.0
3,780.2
906.6
243.2
68.1
Consumption of electricity (CO
2
)
SOx
NΟx
Fluorine
Particles
Transportation
of products (CO
2
)
Business travel (CO
2
)
Personnel travel
to/from work (CO
2
)
G4-EN15
G4-EN16
G4-EN17
G4-EN21
1,666,371.3
2,392,602.3
Metallurgy &
Moning Sector
EPC Project
Sector
Energy
Sector
Group policy on adapting to climate change:
8.4 Emissions
The MYTILINEOS Group activity sectors, and especially the Metal-
lurgy & Mining sector, generate carbon dioxide (CO
2
) emissions.
These are distinguished into direct (Scope 1) and indirect (Scope
2) CO
2
emissions. Direct emissions result primarily from the alu-
minium production process (consumption of fuels and chemical
processing as part of the production process) and secondarily
from electricity production (consumption of natural gas), with in-
direct emissions corresponding primarily to the consumption of
electricity. In 2015, total direct and indirect emissions stood at 4.06
million tonnes, up 7% compared to 2014.
1
4
7
8
9
17
15
20
23
24
25
26
27
29
30
28
21
10
11
22
12
13
5
2
3
18
16
6
14
19
*A carbon neutral website is one for which the total greenhouse gas emissions from its operation have been calculated in real time (using an
innovative methodology) and have been offset through an equivalent amount of carbon credits, thus making the website’s operation climate-
and environment-friendly.
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