CNG (Compressed Natural Gas)

CNG (Compressed Natural Gas) is natural gas that has been compressed to high pressure so it can be stored and used as a vehicle or industrial fuel. It is mainly composed of methane and is commonly used in buses, taxis, trucks and some passenger vehicles. Compared with petrol and diesel, CNG usually produces lower emissions of carbon dioxide, nitrogen oxides and particulate matter during combustion. However, it is still a fossil fuel unless produced from renewable biomethane. CNG is considered a transition fuel in some transport and energy systems because it can reduce local air pollution and support lower-emission mobility where full electrification is not yet practical. It requires dedicated storage cylinders, dispensing infrastructure and safety standards due to its high-pressure format.