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Cost savings from energy management

04/17/2013 - 06:45 AM

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Impianto fotovoltaico e torre

Sede Telecom Italia di Oriolo Romano - Roma Nord

Impianto fotovoltaico e torre

Reducing electrical energy consumption allows us to cut our operating costs.

In the coming years, Telecom Italia plans to reduce its procurement of electricity from the grid at a rate of approximately 150/200GWh per year.

The planned savings is reached through efficiency measures and development of renewable sources, which do and will allow us to compensate  the inertial growth in consumption due to the growth of telephone traffic and services.

In economic terms, this means approximately cost savings of 23 /30 Million € per year.

For its operations, each year Telecom Italia buys about 2.2 TWh. Planned saving is thus equivalent to about 10% of total grid procurement of electrical energy.

Among efficiency and development activities we mention:

  • replacement of fluorescent lamps with low energy consumption LED( ) lamps in offices and industrial sites,which has so far (since the beginning of the project in 2011) involved around 300,000 lamps (including 200,000 replaced in 2012). The savings achieved in 2012 amounted to 17 GWh, of which 9 GWh related to replacements in 2012 and 8 GWh related to the previous replacements in 2011. Additional benefits of the project include the longer life of LED lamps and the resulting reduction in scheduled maintenance activities, as well as the lower environmental impact due to the disposal of spent fluorescent tubes;
  • remote powering of public telephone boxes from the telephone exchange: launched in October 2011, the project was completed in 2012, allowing around 24,000 power supply connections to be cut off. Remotely powered telephone boxes are lit by low energy consumption LED lamps controlled by motion detectors to vary the intensity of the lighting inside the box as a supplement to the courtesy light;
  • energy audits in various types of buildings occupied by Telecom Italia, identified as being among the most energy-intensive,  allowed guidelines to be drawn up. These will be applied in future energy audits involving a significant number of the company's sites (around 100) with the highest levels of electricity consumption. Started in late 2012 this project will be completed in 2013. During  2013 we will implement some of the efficiency measures identified in the aftermath of the energy audits carried out (24 interventions);
  • remote monitoring through Smart Centers of energy consumption of individual components. During 2012, a total network of around 28,000 nodes/sensors was installed in over 400 fixed network exchanges, 2,500 Radio Base Stations, 11 data processing centres, 10 shops and 25 offices. The control parameters and the consequent adjustment of the operation and effectiveness of the technological equipment will allow consumption optimization: in 2014, in full operation, benefits will be equal to 13 GWh (fixed network) with a saving index of 2% per annum on total consumption equal to 900 GWh, and a saving index equal to 6GWh (mobile network) with a saving index of 3% on a total consumption of 200GWh in shelters with greater consumption.
  • interventions to increase electricity self-production:

    a.    launch of a project to transform 5 micro-cogeneration plants into trigeneration plants( ), which is expected to be completed in 2013. The estimated energy savings for 2013 is equal to 3 GWh (5 GWh in full operation).
    b.    installation of photovoltaic panels on 100 fixed network exchanges owned by the company. Started in late 2012 , the project is expected to be completed in 2013. Energy saving of about 0.8 GWh is estimated for 2013;
    c.    a solar cooling system was installed in a medium-sized fixed network site for the production of chilled water for air conditioning by absorption of solar thermal energy. This project started in late 2012 and will be completed in 2013. The expected energy saving in 2014 is 0.25 GWh.

    All projects have pay back time for the return on investment of less than three / four years.