Page 53 - Glass Machinery Plants & Accessories no. 3-2019

Glassmaking is a very energy consuming est Styrian glass man-
ufacturer Stölzle-
process and today’s glassmakers are WOberglas impressively
proves that even energy-intensive
increasingly keen on implementing industrial companies have a
green thumb. In 2018, a huge
technologies and machinery which do rooftop photovoltaic system went
into operation, which had been
not only save energy (and money), but installed by the Austrian com-
pany Oekosolar PV on the eight
also protect our planet. Stölzle-Oberglas roofs of the Stölzle warehouses.
Each of the eight individual
speaks about the recently installed PV PV systems has a nominal output
of around 200 kilowatts peak,
system, which can cover 25 per cent of the so a total of 1.6 MW peak,
which corresponds to 25 per cent
company’s electrical power request. of the electrical power which is
required by the Austrian glass
plant at peak times.

NOT ONLY PHOTOVOLTAICS
“This is the first photovoltaic
system to have been installed in
the Glass Group, but we are
confident that this project will be
extended to other Stölzle plants
as well, as we already see that we
can compensate quite a bit of our
carbon footprint through such
green initiatives,” confirms the
Group’s CEO Georg Feith.
The huge photovoltaic project
has only been one of more initia-
tives, set up by Stölzle recently.
Besides this, all plants of the
Group strive to optimize their
energy consumption and the
recovery of waste heat of the
furnaces.

WASTE GAS HEAT
EXCHANGER
At the Austrian glass plant,
a very efficient waste gas heat
exchanger was implemented in
2015, which recovers the waste
heat from the two melting fur-
naces used in the glass produc-
tion and feeds it into the dis-
trict heating network of Energie
Steiermark. This results in com-
pensating for 4,300 tonnes of
CO2 every year.
The Glass Groups initiatives
to compensate the CO2 emis-
sions caused in glass production

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