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CNG

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What is CNG?

CNG stands for ‘Compressed Natural Gas’ and is mainly composed of methane. The natural gas is condensed to just 1% of its usual volume by passing it through a compressor. It remains in the form of a gas and is stored under high pressure in gas cylinders.

Natural gas can also be chilled and compressed further to improve fuel density and storage. This is known as High Density Compressed Natural Gas or HDCNG. Using HDCNG as a fuel means vehicles can drive longer distance and need to refuel less often.

 

What is CNG used for?

CNG is primarily used as a fuel for buses and trucks that return to base for refuelling on a regular basis.

CNG is also used as a fuel for cars.

CNG vehicles need to be refuelled using purpose built compressors that are connected to a mains supply of natural gas.

 

What are the benefits of using CNG?

CNG is cheaper than ULP and diesel, and is also less polluting.

Depending on the engine, vehicles running on CNG produce between 8 – 25% less Green House Gas Emissions than those fuelled by unleaded petrol or diesel.

Australia also has an abundant supply of natural gas, estimated to be equal to 184 years of supply.

Increasing the use of natural gas domestically, as an alternative to imported oil, will help improve Australia’s fuel security.