While more than 4 million vehicles run on CNG in the world, only 3.000 circulates in France. With an expensive oil and the targets set by the Kyoto Protocol, France has recently set the goal of 100.000 vehicle in 2010.
In a context in which transport accounts for 30% of a French's energy consumption and 27% of its greenhouse gas emissions, the European Commission's Green Paper underlines the importance of promoting progressive growth by others. energy sources and aims to replace, by 2020, 20% of conventional fuels with alternative fuels.
A natural gas car is a standard gasoline vehicle, originally modified by the manufacturer, simply equipped with one or more tanks, a dipstick and an additional engine power supply for natural gas. The cars currently available on the market are called bi-fuel gas / gasoline vehicles, since they work with both energies. Thanks to its natural gas tank, a bi-fuel vehicle can travel on average 300 km more than a conventional vehicle. Indeed, to the natural gas autonomy (from 200 to 500 km depending on the models) is added that related to the content of the fuel tank which remains generally unchanged. The vehicle is primarily driven by natural gas and the changeover to gasoline is automatic as soon as the natural gas tank is empty.