Bulgaria's car-packed capital Sofia has set an EU example in the fight against greenhouse gas emissions by installing its first state-of-the-art solar-powered charger for electric cars, the project's managers said Wednesday. "Electricity production can be polluting so we thought we would build this photovoltaic station and charge electric cars with green energy from the sun," engineer Rosen Malchev told AFP. Sofia's solar station was cited by the European Commission earlier this month as one of a handful of success stories in Europe's fight against climate change.