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Compressed Natural Gas (CNG): A Peak-Oil "Bridge Fuel"
(Matt Gaspar, June 15, 2008)
I work at Culver City City Hall in California. For the last several years we have bought many buses and refuse trucks running on CNG (compressed natural gas) that replaced the diesel or gasoline vehicles. Our goal is to be 100% running on CNG in the next few years. We have a slogan, "Go Green" and are trying to promote clean air and energy at reduced cost. With tax breaks, we pay about $1.50 an equivalent gallon for natural gas rather than $4.50 for regular gasoline. We have saved $100K's last few years. This is happening in many cities in the Los Angeles region. Clean Energy fuels is helping agencies like ourselves to convert to CNG fueling stations at the city transportation yard.
Axcording to my research, the world has about 6.2 quadrillion cubic feet of natural gas reserves, according to the EIA
The world uses about 105 trillion cubic feet a year: eia.doe.gov/emeu.
Finally, since 2000, the world discovered 1 quadrillion cubic feet of natural gas. Same link.
Based on EIA information, which quotes from several publications of reserves and consumptions, the world has about 60 years of natural gas left, if things remain static. Realistically, it may be more like 30 years before things run out if no additional reserves are discovered. I did some research on compressed natural gas, (CNG) and LNG terminal construction in North America and Gulf of Mexico.
This particular terminal is being expanded and scheduled to begin operations in late 2008. This expansion will take it to 1.5 billion cubic feet of capacity. Furthermore, this facility can be further expanded to 2.65 bcf a day.
Compressed natural gas (CNG) is actually cheap to produce.
Compressed natural gas (CNG) is natural gas pressurized and stored in welding bottle-like tanks at pressures up to 3,600 psig (25 MPa). Typically, it is same composition of the local "pipeline" gas, with some of the water removed. CNG and LNG are both delivered to gas engines as low pressure vapor (ozf/in▓ to 300 psig, up to 2.1 MPa). CNG is often misrepresented as the only form natural gas can be used as vehicle fuel. LNG can be used to make CNG. This process requires much less capital intensive equipment and about 15% of the operating and maintenance costs.
The following LNG off-loading and regasification terminals are located in the United States and Gulf of Mexico:
Everett, Massachusetts, DOMAC's LNG, Tractebel LNG
Proposed LNG import terminals US and Gulf of Mexico: Proposed Terminals:
Crown Landing LNG Terminal, Gloucester County, New Jersey - A proposed LNG terminal to be located along the Delaware River. BP is working for regulatory approval and the LNG terminal is expected to be online by the end of 2008.
Neptune LNG, Off shore Boston
Natural gas powers nearly 130,000 buses, taxis, delivery trucks and other natural gas-powered vehicles in the United States.
It appears to me that with Peak Oil now hitting, LNG imports and CNG vehicles will play a very important role in making up the decline in crude oil production for least the next 20 -30 years.
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