waste-to-energy at Portion of energy produced from renewable sources (incl. waste-to-energy at 51%) and similar 50.8% 51.2% 50.8% 53.9% 62.9% Waste-to-energy plant emission levels vs legal limits (real concentrations/legal limits: optimal value <100%) 22.4% 21.2% 19.3% 17.1% 13.4% Quality of treated water vs legal limits (real concentrations/legal limits: optimal value <100%) 30.0% 31.7% 30.0% 25.3% 22.5% Compliance with the Kyoto Protocol (real emissions/authorised emissions) 98% 86% 64% 70% 55% Non-invoiced water (physical and administrative losses from the civil aqueduct) “percentage of water inputted into the system n.a. 25.4% 25.3% 25.0% 25.0%* Non-invoiced water (physical and administrative losses from the civil aqueduct): mc/km of system/day n.a. 8.42 8.28 7.94 7.87* Separated waste collection 28.9% 31.2% 36.1% 42.4% 45.3% Vehicles with low envir.