Reduction of grid lossesGrid losses depend mainly, but not only, on the length the electricity travels on the transmission grid. To simplify: with equal consumption the farther the point of withdrawal (i.e., consumption) of electricity from the NTG is from the point of injection in the NTG of the electricity produced, the greater the losses. Furthermore, holding length constant, losses are greater on lower-voltage lines.         
Therefore, losses can be reduced by work that improves the mesh of the grid, i.e. bring the points of injection and those of consumption closer to one another. They can also be reduced by upgrading a grid segment, for example by replacing a 150-kVi line with a 380-kVi one on the same route.  
When all the work included in the 2011 Developmenti Plan has been done, the decrease in peak losses could reach 200 MW of power, which corresponds to a reduction of losses of energy in the grid quantifiable as about 1,200 GWh a year. Assuming that the reduction of such losses is equivalent to a reduction in production from fossil fuels, it is estimated that the aforesaid work will lead to a reduction in CO2 emissions ranging from 500,000 to 600,000 tons a year (1).

[1] The estimate was made assuming equal conditions. A change in consumption or the location of production plants could lead to different results.