The municipality of Castellana Sicula has applied various green solutions such as the replacement of the entire public lighting system with LEDs (1252 light points); the conversion of gas oil condensing boilers to methane; the installation of PV systems on all municipal buildings (15) for a total of 236.60Kwp; the replacement of the municipal vehicle fleet with new vehicles including hybrid and electric cars, pedal-assisted bicycles and charging stations; the installation of LED cemetery votive lamps and PV systems with storage to power them in the 2 cemeteries; the energy certification of all municipal buildings and efficiency of most of them with also cat. A +++ and finally the planting of trees every year in the municipal area.