page_title: Compressed natural gas
section_title: Oceania
hierarchical_section_title: Compressed natural gas / Worldwide / Oceania
caption_attribution_description: English: Volgren CR228L bodied Mercedes-Benz OC 500 LE CNG (#1912, TP1912; built: 2005) operating for Transperth under Path Transit on route 296. This used to be on the Perth CAT, but have been discontinued due to Volvo.
context_page_description: Compressed natural gas is a fuel that can be used in place of gasoline, diesel fuel and liquefied petroleum gas. CNG combustion produces fewer undesirable gases than the aforementioned fuels. In comparison to other fuels, natural gas poses less of a threat in the event of a spill, because it is lighter than air and disperses quickly when released. Biomethane — refined biogas from anaerobic digestion or landfills — can be used.
  CNG is made by compressing natural gas, which is mainly composed of methane, to less than 1% of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 20–25 MPa, usually in cylindrical or spherical shapes.
  CNG is used in traditional gasoline/internal combustion engine automobiles that have been modified or in vehicles specifically manufactured for CNG use, either alone, with a segregated gasoline system to extend range or in conjunction with another fuel such as diesel.
context_section_description: During the 1970s and 1980s, CNG was commonly used in New Zealand in the wake of the oil crises, but fell into decline after petrol prices receded. At the peak of natural gas use, 10 percent of New Zealand's cars were converted, around 110,000 vehicles.
  For a period of time, Brisbane Transport in Queensland, Australia adopted a policy of purchasing only CNG buses. Brisbane Transport has 215 Scania L94UB and 324 MAN 18.310 models as well as 30 MAN NG 313 articulated CNG buses. The State Transit Authority purchased 100 Scania L113CRB, 283 Mercedes-Benz O405NH and 254 Euro 5-compliant Mercedes-Benz OC500LE buses.
  In the 1990s Benders Busways of Geelong, Victoria trialled CNG buses for the Energy Research and Development Corporation.
  Martin Ferguson, Ollie Clark and Noel Childs featured on The 7:30 Report raised the issue of CNG as an overlooked transport fuel option in Australia, highlighting the large volumes of LNG currently being exported from the North West Shelf in light of the cost of importing crude oil to Australia.
caption: Transperth Mercedes-Benz OC500LE running on CNG
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