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Refrigerants affect the environment both by damaging the ozone layer and through the greenhouse effect. In 2009, measurement of the refrigerants in Terna’s equipment was extended. Coverage of the measurement is still incomplete. Among the new sites measured there are some with equipment in operation uninterruptedly for the security of the electric service, which require a larger number of refrigeration systems to keep the temperature constant.

REFRIGERANTS - QUANTITIES - Terna S.p.A., Kilograms

  2009  2008 
 R22  4,380,3  2,591.8 
 R407C  816.6  784.0 
 R410A  333.9  348.7 
Others
 6.2  2.4 
 Total
 6,553.5  3,726.9 

In 2009, Terna began monitoring the consumption of refrigerant gases. The monitoring is limited for the time being to R22, which constitutes 65.7% of all the refrigerants in Terna’s plants

The figure contains the quantity of new gas injected in equipment during its maintenance. This quantity of consumption does not entail actual atmospheric emissions with effects on the environment.

refrigerants - CONSuption - TERNA S.P.A., Kilograms

   2009 
 R22   1,016.5