EN1As far as materials are concerned, Terna does not use raw materials, but electrical equipment, wires, and other elements, which are combined to be utilized in providing the transmission service. The following table shows the main non-renewable raw materials used by Terna. The weight is calculated on the basis of the quantity used, the average or typical weight of the single elements, and the share of raw materials contained. In some cases the elements consist of a single raw material (for example, insulators are 100% glass or ceramic, terminals 100% aluminum), while in others an estimate was made of the main raw material (for example, copper accounts for 60% of the weight of an ATR transformer). Information is not currently available on the use of recycled materials by the supplier of the materials and equipment used (with regard to environmental criteria used in procurement, see the box in the chapter on Economic Responsibility).

The increase in the use of raw materials, in particular aluminum and steel, is due to the progress made on the construction of the new 380kV connecting lines included in the Development Plan.

  2011 2010 2009
Porceilan 967 663 494
Polymeric 322 350 244
Copper 2,569 3,853 2,628
Aluminum 9,588 4,927 2,224
Steel 23,875 17,114 6,496
Glass 2,078 1,523 1,191
Dielectric il 974 1,413 781
SF6 54 23 21

As of this year, quantities of dielectric oil and SF6 gas found in supplies were included in the table. Both used as insulators in transformers in Terna’s 454 stations.

In office work, the main consumable is paper.

 201120102009 (1)
FSC Paper708353
(1) Coverage of paper consumption was not complete in 2009, the data in the table (53 tons) refers to 81% of employees classified as managers and workers.

Paper consumption refers to the quantities purchased, therefore the variation between 2011 and the previous year primarily refers to management of 2010 stocks during 2011. The 2010-2009 difference is connected, instead, to the data gathering perimeter, which was increased in 2010 with the inclusion of the headoffice in Rome where the company’s day-to-day office and staff activities are concentrated. 

EN2All the paper purchased since the end of 2009 has been made with FSC pulp – that is, without any chlorine whatsoever – certified by the FSC (Forest Stewardship Council –, which guarantees that the forests providing the cellulose are managed in accordance with sustainability criteria from the point of view of both the environment and human rights.

EN8Water is not part of the production cycle of the transmission and dispatching of electricity. Normally the water used – for personal hygiene, cleaning offices, and air-conditioning systems – comes from aqueducts for civil uses. Consumption increased in the three-year period under consideration, being affected by the effects of the increase in the number of Terna’s stations (+ 19%). The 2010 data, higher compared to the one registered this year, was due mainly to the leakage of two pipes in two local offices, which in one case was connected with ice on the plumbing and in the other with work carried out in the vicinity of the pipe.

  2011 2010 2009
Water withdrawal (1) 176,525 184,979 158,942
(1) The data are recorded from the meters and bills of suppliers for the entire recording boundary.

It should be emphasized that the water supply regards not only the main headoffices, but also the over 400 stations belonging to Terna that are scattered across Italy. With the objective of being able to timely report any anomalies (high consumption, losses, etc.) the inclusion of water meter readings into the MBI information system used in managing lines and stations - once the monthly registration of consumption for all stations becomes routine - will allow for quick action to solve any problems which may arise.

Water consumption: comparative data

The comparison between Terna and other companies on the subject of water usage is made by taking as reference both total consumption and per capita consumption in cubic meters.

Both the data of individual transmission companies (the TSO panel) and that of large Italian listed companies (FTSE-MIB) and international leaders of sustainability (SAM – Supersector Leaders) have been examined.

In all the panels, the data indicate substantial non-comparability among companies, in that consumption reflects the different importance of the use of water in production processes, as well as the size of the company, not necessarily reflected by the number of employees. The highest per capita data among the three panels concerns Xstrata, a company in the United Kingdom that works in the field of resource extraction, whereas the lowest was Air France. Companies dealing with electricity generation that use water in the production cycle rank in the top of the per capita consumption ranking; companies that provide intangible services (such as banks) rank lowest.

Despite the intrinsic limitations present in the comparison, and lacking more efficient normalization factors for the number of employees, it was decided that it would nevertheless be of interest to present the main data on water consumption. Said data, in fact, though it could not be interpreted as significant of company performance in the efficient use of the resource, provide at least an indication of the relevance of water usage – therefore of the materiality of the subject in terms of sustainability – in the different sectors and in the different companies.

For 2011, the total and per capita amount of Terna’s water consumption was 176,525.0 and 50.5 cubic meters, respectively; in 2010, the year for which comparison data is available, water consumption was 184,978.7 cubic meters in all, and 53.3 cubic meters per capita.

TSO panel: 12 available data (10 companies, one of which had different data per country);

  • total water consumption – thousands of cubic meters: average 1,808,338.8, lowest figure: 1.5 (Resedur - Peru); highest figure 16,443,032.7 (AEP - USA);
  • per capita water consumption – cubic meters: average 106,362.7, lowest figure: 10.3 (ISA - Latin America); highest figure: 878,742.7 (AEP - USA).

In this comparison, Terna ranks well below the average both for total and per capita consumption. The average is strongly influenced by the data of operators that handle not only electricity transmission and dispatching of electricity, but also electricity generation (4 companies) or the transportation of natural gas (3 companies). 

FTSE-MIB panel: 24 available data (23 companies, one of which, Ansaldo, has different data per sector);

  • total consumption of water – thousands of cubic meters: average 24,878.6 (Stmicroelectronics); lowest figure: 17.4; highest figure 328,700.0 (Enel);
  • per capita consumption of water – cubic meters: average 478.8; lowest figure 12.9 (Banca Mediolanum); highest figure 4,729.7 (Enel).

Also in this case, Terna’s consumption (total and per capita) ranked below the average. In particular, Terna’s per capita consumption ranked slightly above the average of the 10 companies in the panel that handle services (39.5 average). 

SAM - Supersector Leaders panel: 5 available data;

  • total water consumption – thousands of cubic meters: average 18,800,828.8; lowest figure: 65.0 (Enagas - Utilities); highest figure: 280,236,000.0 (Xstrata - Basic Resources);
  • per capita water consumption – cubic meters: average 559,410.3; lowest figure: 9.0 (air France - Travel & Leisure); highest figure: 7,267,342.7 (Xstrata - Basic Resources).

In comparison to global best practices of sustainability, Terna ranks well below the consumption average. The high standard deviation indicates a great variety of sectors considered, some of which consumed large quantities of water, such as companies which handle resource extraction.

The great variability of company data renders a graphic illustration of little importance; the table indicates the lowest, average and highest figures and the standard deviation in the three panels concerned. 

  Water consumption - 2010
  TSO FTSE-MIB SAM – Supersector Leaders
  Thousands cubic meters Cubic meter/ employee Thousands cubic meters Cubic meter/ employee Thousands cubic meters Cubic meter/ employee
Average 1,808,338.8 106,362.7 24,878.6 478.8 18,800,828.8 559,410.3
Max 16,443,032.7 878,742.7 328,700.0 4,729.7 280,236,000.0 7,267,342.7
Min 1.5 10.3 17.4 12.9 65.0 9.0
Standard Dev. 4,721,590.1 255,706.3 74,882.6 1,046.1 72,324,715.5 1,877,642.9
Terna 185.0 53.3 185.0 53.3 185.0 53.3
Per capita consumption, if not directly available, was obtained by dividing the total consumption of water by the number of employees.