Compliance of atmospheric waste-to-energy emissions with legally established limits in Legislative Decree no. 133/2005 – continuously monitored parameters (optimal values < 100%), average of the seven plants The plant renovation process has resulted in a significant improvement in the abatement percentages of pollutant emissions: in January 2008 the two new waste-to-energy plant lines in Ferrara became fully operational, since early 2009 the new Forlì plant has been operational, in April 2010 the new line 4 of the Modena waste-to-energy plant became operational, and since October 2010 the new line 4 of the Rimini waste-to-energy plant has been operational.