CNG

Compressed Natural Gas (CNG) is natural gas stored under high pressure (typically 200-250 bar) to reduce its volume, making it a practical and cleaner-burning alternative fuel for vehicles and other applications. Composed primarily of methane, CNG produces significantly fewer pollutants than conventional gasoline or diesel—emitting up to 30% less carbon dioxide, 80% fewer carbon monoxide emissions, and virtually no particulate matter. This environmental advantage has driven its adoption in public transportation systems, commercial fleets, and private vehicles across countries focused on reducing urban air pollution.

From a practical standpoint, CNG offers economic benefits alongside its environmental credentials. The fuel typically costs 40-60% less than petrol or diesel, translating to substantial savings for high-mileage users like taxi operators and delivery services. However, CNG vehicles require specially designed fuel tanks and slightly modified engines to handle the compressed gas safely. The main limitation is the more limited refueling infrastructure compared to conventional fuel stations, though this network is expanding in many urban areas. CNG cylinders also take up more space than traditional fuel tanks and generally provide a shorter driving range per fill-up, which is why the fuel has seen strongest adoption in fleet vehicles with predictable routes rather than long-distance travel applications.