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Electricity procured and produced
Telecom Italia S.p.A. 2011 2011
vs 2010
Changes %
2011
vs 2009
Electricity from mixed sources(*) kWh 1,896,664,295 (6.28%) (9.40%)
Electricity from renewable sources kWh 37,032,133 (7.91%) (13.79%)
Total electricity kWh 1,933,696,428 (6.31%) (9.49%)
(*) Electricity purchased from mixed sources is equal to 1,813 GWh approximately. Self-produced electricity from mixed sources is equal to 84 GWh
approximately and refers to the co-generation plants, with an associated consumption equal to 22 million m 3 of methane. The production of electricity
from continuous generators (not shown in the table) is estimated to be around 3 GWh.
Electricity procured and produced
TI Group breakdown by Business Unit (%)
TI Group 2011 Domestic Brazil Argentina Media Olivetti
Total electricity kWh 2,743,240,667 72.03% 12.67% 13.76% 0.89% 0.65%
Energy saving and network efficiency improvement initiatives led to a significant reduction in overall
electricity consumption of over 6%. During 2011, energy efficiency and optimisation of consumption
initiatives primarily related to:
• adoption of the most modern and efficient technological solutions for TLC platforms and servers
installed in Data Centres, including the concentration and virtualisation of machines (*) ;
• introducing innovative mobile network system technologies in order to improve performance in terms
of transmission capacity and allow new services to be introduced that significantly reduce energy
consumption;
• rationalising and optimising air conditioning systems, particularly by segregating environments
depending on their different temperature requirements, and increasing the average operating
temperatures of telephone exchanges, servers and Radio Base Stations (RBSs);
• modernising of AC/DC conversion equipment through the introduction of technological solutions that
guarantee better performance;
• maintaining the efficiency of the fixed traditional switching network and the data networks;
• installing time switches to turn off the lighting systems;
• the targeted use of Full Free Cooling (†) technologies and other low environmental impact systems
characterised by reduced energy consumption in cooling systems;
• additional use of remote metering systems via sensor to cover around 25% of the company's energy
use in 2011 (with a plan for further increases to achieve remote metering of around 50% of
consumption in 2012);
• energy efficiency audits at Telecom Italia's most important sites in terms of energy consumption and
consequent adoption of improvement actions;
• sharing of technological sites thanks to co-siting agreements (‡) leading to energy savings of around
30%.
The following initiatives were carried out in 2011 regarding the use of non-traditional or alternative and
experimental new technologies:
(*) Virtualisation makes the functions of a data processing machine available without the machine actually being present.
(†) The FFC cooling system consists of a forced ventilation system and interaction between areas of different temperature without recourse to traditional
air conditioning systems and, in particular, without the use of climate altering gases. The system, which is currently applied in over 400 plants, allows a
saving of over 85% to be achieved compared to traditional air conditioning solutions.
(‡) These reciprocal agreements between operators are required by the Electronic Communications Code in order to promote more efficient use of network
infrastructure and optimise mobile network coverage in urban and rural areas. Each operator retains ownership of their passive infrastructure (poles
and pylons, electricity and air conditioning plants and civil infrastructure) and hosts the other.
Report of Operations Sustainability Section 116