Stora Enso Global Responsibility Report 2012 - GlobeNewswire

Environment
E
Better use of the combined heat and power (CHP) potential of our mills
can increase the power-to-heat ratio of our internal energy production.
This means that for each MWh of heat that we produce, we should
aim to maximise the amount of electricity generated. The Group’s
overall power-to-heat ratio decreased from 23% in 2011 to 20% in
2012 mainly due to a prolonged stoppage at our gas turbine power
plant at Anjala Mill.
In 2012 we started to apply a new approach to energy efficiency management
by initiating the implementation of a new software tool for
energy savings at our mills. The tool primarily covers electricity, steam
and the efficiency of heat exchangers, and it may also be expanded to
cover water use. During 2012 the new software has been piloted at our
Sachsen Mill in Germany. If it proves useful it will also be subsequently
installed at other mills.
issues, who work together systematically to find ways to improve the
efficiency of energy use, referring to the targets set for each business
area. During 2012 we conducted basic energy audits at nine mills. In
2013 the focus will switch to follow-up audits, and Group-wide special
topic campaigns will be introduced. We will also further intensify our
assessments of investment proposals with potential to improve our
mills’ energy efficiency, as well as the sharing of best practices on
energy use.
Our centralised energy efficiency fund contains a total of 10 million
euros that can be allocated for energy saving investments. The fund
was set up in 2008 to support our mills’ energy efficiency projects, and
it supported 37 projects during 2012. These projects should generate
total energy savings amounting to at least 310 000 MWh per year
when in full effect.
To coordinate and steer our energy efficiency work and promote the
spread of related information, we created the new position of Energy
Efficiency Manager in 2011. In 2012 we took the next step by making
our “energy hunters”, who have been assigned to find energy saving
opportunities at our mills, into a permanent team.
To further improve our energy use we have created a network of three
forums for our Nordic and Continental European paper and board
mills. These forums involve mill personnel with responsibility for energy
Electricity consumption 1) Heat consumption 1) 2)
130 10
20 1.50
19 1.45
18 1.40
17 1.35
16 1.30
15 1.25
14 1.20
08 09 10 11 12 Trend 08–12
TWh 17.7 15.0 16.2 15.4 15.4 -13%
MWh/tonne 1.33 1.37 1.31 1.27 1.27 -5%
120 9.5
110 9.0
100 8.5
90 8.0
80 7.5
70 7.0
08 09 10 11 12 Trend 08–12
PJ * 100.8 84.4 95.3 90.6 91.4 -9.3%
GJ/tonne 7.56 7.7 7.68 7.47 7.59 0.4%
1) From pulp, paper and board production facilites. Normalised figures are reported per unit sales production.
2) Excluding heat for electricity generation.
* 1 PJ = 10 15 joules.
Stora Enso Global Responsibility Report 2012 49