WORK WITH US |  General Archive |  Suppliers |  Contacts 
it-ITen-GB

Resource management

 

Our administration of materials and waste in our operations

The energy transmission service provided by Terna does not require a significant amount of materials or the handling of a considerable amount of waste.

The service includes, however, the building and maintenance of a certain amount of assets, whose principal components are:

  • Power lines: pylons, conductors, insulators
  • Transforming stations: transformers, switches, other equipment
  • Control systems

In the case of Terna, both the use of materials as well as the management of waste materials relate predominantly to the building and maintenance of electricity and computer infrastructures

The overall picture of all Terna's environmental data is available for download here.

Two are the areas of interest to Terna:

  • Use of resources
  • Waste

Terna does not use raw materials but electrical equipment and other elements that are combined to operate with the transmission service.

The following table indicates the main raw materials present in the supplies used by Terna.

MAIN MATERIALS IN SUPPLIES -  Tonnes

2017

2016

2015

Porcelain

303

193

336

Polymeric

171

93

102

Copper

1,870

461

1,380

Aluminium

3,963

2,858

5,077

Steel

6,933

13,253

13,275

Glass

1.466

859

1,474

Dielectric oil

812

227

682

SF6

9

34

31


In office activities, the principal material consumed is paper.

From the end of 2009, all of the paper purchased by Terna is made with a TCF paste, chlorine free, and provided with a FSC-Forest Stewardship Council certification, to ensure that the forests from which is; taken are managed in compliance with both environmental and human rights.

PAPER CONSUMPTION

Units

2017

2016

2015

Certified paper (100% recycled)

ton

50

60

63


Water is not involved in the production cycle for electricity transmission and dispatching. Usually the water used – for hygienic uses, for cleaning the premises and for the air conditioning – comes from domestic water supply connections.

WATER CONSUMPTION

Unità

2017

2016

2015

Prelievo di acqua per fonte

m3

171,074

162,272

171,264


The overall picture of all Terna's environmental data is available for download here.

Most of Terna’s waste is recovered and intended for recycling. Only a small part of the waste is sent to landfill with a resulting environmental impact. The percentage of waste recovered amounted to 87% in 2017 (93% in 2016 and 92% in 2015).

As in the case of used resources, also the waste comes mainly from activities of modernization and maintenance of the electricity infrastructures.

WASTE BY CATEGORY Tonnes
2017
2016
2015

Waste produced(1)

4,801.5

4,941.6

5,112.1

of which hazardous

2,250.6

1,842.5

2,906.7

of which non-hazardous

2,250.8

3,099.1

2,205.4

Recycled waste

4,188.1

4,581.4

4,680.2

of which hazardous

1,832.1

1,560.6

2,643.1

of which non-hazardous(2)

2,356.0

3,020.8

2,037.1

Waste sent for disposal(3)

315.6

351.6

427.3

of which hazardous

171.4

275.6

259.7

of which non-hazardous

144.2

76.0

167.6

(1)Only special waste produced during production processes is included, not waste produced by services (urban waste). Effluents and waste from septic tanks, produced by substations not connected to the sewer network, are not included; the quantity for effluents and waste from septic tanks was 617 tonnes in 2017, 789 tonnes in 2016 and 680 tonnes in 2015.

(2)This comprises uncontaminated metal waste deriving from the decommissioning of transformers, electrical equipment and machinery (e.g. generators), with an average recovery rate of 100%.

(3)Waste sent for disposal may differ from the mere disparity between waste generated and recovered due to temporary waste storage. Specifically regarding 2017, the production of 240 tonnes of waste relating to the "machinery, equipment, pylons, conductors and cables" category – in line with Legislative Decree 152/2006 – is currently stored in an Infrastructure Unit's temporary storage facility.


The main hazardous special waste produced by Terna’s operating activities consists of:

- metal waste which derives from the decommissioning of transformers, electrical equipment and machinery no longer used and contaminated by hazardous substances, more than 90% of which is recycled on average, after treatment by third parties;

- batteries (lead and nickel), which, in the event of a blackout, enable emergency generators to be turned on to keep the energy transportation and transformation service operating during emergencies, 100% of which are recycled;

- dielectric oils for the insulation of transformers replaced following the regular checks carried out for transformer maintenance, and which constitute hazardous waste.

Waste sent for disposal consists mainly of materials used in the maintenance and cleaning of plants (mud, oil emulsions and rags containing oils and solvents) and insulating materials containing asbestos for which no kind of recycling is available.


The overall picture of all Terna's environmental data is available for download here.