cooling systems which contribute to keeping down
the temperature in spaces where we have heat-
producing equipment. The oldest cooling systems
are around 40 years old. When cooling systems get
old they may begin to leak coolant. The coolant
in the older systems is Freon, a liquid which may
cause great harm to the environment. If Freon
comes into contact with air it is converted into a
gas called R22. This gas is harmful to the ozone
layer, and the use of coolant which may form R22
gas will be banned from 1 January 2015.
Since Telenor has so many systems of this type we
have to replace them over several years. In 2011
Telenor Norway set up a project with a view to
replacing our largest and oldest cooling systems. In
some cases the need for cooling has been reduced
as we have upgraded the technical equipment
and the old cooling systems can then either be
replaced by systems of a lesser scale or removed
completely. To us the replacement of old cooling
systems represents both environmental benefits
and a cost benefit.
lower electricity consumption
The coolant itself in the new systems is much
more environmentally friendly. New cooling
systems also have better motors, their fans run
more quietly and they consume less electricity.
As a result our own electricity costs will decrease;
moreover, a lower electricity consumption
represents an environmental benefit in itself. When
the replacement project has been completed we
will have achieved an annual electricity saving
equivalent to the electricity consumption of 250
households. Lower electricity consumption means
a reduced need for electricity production in society.
of our oldest cooling systems. These are extensive
processes which require the approval by various
authorities, the planning of new technical solutions
and systems and the precise tapping of coolant to
avoid discharges of fluid or other accidents.
4
part of Telenor Norway's efforts to reduce our total
impact on the environment. The team responsible
for the replacement of Telenor Norway's cooling
systems was declared internal environmental
heroes for the fourth quarter of 2012. The project
will continue in 2013 and 2014.
Cooling eQuiPment
TeChniCal equipmenT whiCh produCe large amounTs of heaT. we depend on Cooling equipmenT To
keep The TemperaTure of This equipmenT down. we are now Carrying ouT an exTensive replaCemenT
of old Cooling equipmenT in order To aChieve boTh environmenTal benefiTs and CosT savings.