Page 56 - Ratti Group - Sustainability report

CH. 4 | TOWARDS “PLANET RATTI”
chinery, to insulate the high-temperatures lines. A system was installed to recover heat from vapour released during the steaming process.
The heat recovery system also includes the washing area and the power plant, since it allows the consumption of electricity and methane to fall, making the production areas increasingly e cient. The replacement of the old washing lines and the installation of a system recover- ing heat from waste water has led to a reduction in both water and energy consumption: the energy is used to heat the in-flowing water that replenishes the tanks forming part of the washing line. Initiatives currently under way include the replacement of the burners in the power plant with new, more e cient systems.
-11.85%
CONSUMPTION OF ELECTRICITY OVER METRES OF FABRIC PRODUCED
-8.79%
CONSUMPTION OF GAS OVER METRES OF FABRIC PRODUCED
Energy consumption
Energy consumption in 2017 recorded a slight increase (+4.96% for methane gas and +1.44% for electricity) in response to a fairly significant increase in production (+15.08% of total me- tres of fabric produced). The consumption of gas per metre of fabric produced actually fell by 8.79%, while that for electricity fell by 11.85%.
Table 1 summarises the Ratti Group’s energy consumption, aggregating data for Italy, Ro- mania and Tunisia.
Tab 1 - Aggregated energy consumption* for factories and o ces in Italy, Tunisia and Romania
Energy consumption of the Ratti Group for o ces and factories
METHANE GAS
u,m,
2016
2017
Change (%)
Total consumption
GJ
GJ GJ
GJ
121,563
30,915 28,125
2,790
127,597 4.96 31,362 1.44
28,598 1.67 2,764 -0.95
Total consumption
of which purchased
ELECTRICITY**
of which produced and self-consumed from the photovoltaic plant (Guanzate premises)
TOTAL ENERGY CONSUMPTION
*Conversion into GJ was performed for all companies in the Group, using the PCI factor published in the “Table of parameters for national standards” published by the Ministry of the Environment and for the Protection of Land and Sea, for the respective years.
** The percentage of electricity produced from renewable sources and consumed by the Group depends on individual national electricity mixes, In Italy there is also self-consumption of renewable energy produced from photovoltaic systems.
GJ/m
GJ/m
152,478.19
158,958.75
0,03
4.25
Consumption of methane gas over metres of fabric produced
-8.79
Consumption of electrical energy over metres of fabric produced
GJ/m
0,04
0,009
0,008
-11.85
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