CNG is the internationally used abbreviation for Compressed Natural Gas. CNG is currently the cleanest and the most economic fuel. It has great potential of use in passenger and commercial vehicles as well as buses, especially public transport buses. Its biggest advantages are its low price, lowest operating cost, significantly lower emission level, low engine noise and high octane number (130). CNG vehicles are free of road tax and burdened with minimal and stable consumer tax.
Natural gas and CNG – Detailed information
CNG is standardly available in the gas supply system of the Czech Republic and European countries. Worldwide resources are huge and new sources are still being found. It is used for production of heat and electric power. If compressed to approximately 200 bars using high-pressure compressors, it still remains a gas. It can be used in the transport industry as a cheap and highly ecological fuel for various types of engines. Unlike standard fossil fuels, it does not create solids in exhaust fumes when burned. Carbon dioxide emissions are reduced by one quarter compared to petrol and up to 95 % compared to diesel. It is the environmentally cleanest fuel, polluting neither air nor soil or water sources if leaking.
CNG vehicles can run on compressed natural gas or biogas refined to natural gas quality. This is made of biomass and is a renewable resource. CNG is not subject to the price fluctuations typical for standard oil products such as petrol or diesel.