Are gas trucks betTer than diesel?

摘要

Dedicated to Gas: Assessing the Viability of Gas Vehicles (www.is.gd/sadeko) found that they can offer a lower total cost of ownership over diesel assuming the same air quality performance. Although the upfront purchase cost is more than that of diesels, the relatively low price of gas more than makes up the difference under the right conditions. (That is partly thanks to a government fuel duty benefit for gas, only 40% of that of diesel, and in place until at least 2032.) Gas can also offer environmental benefits over diesel - particularly if the supply includes at least some part derived from waste. Moreover, two aspects of gas trucks found to be relatively worse than diesel are likely to improve with time, according to the authors. First is their range, which was found to be generally worse than diesel (see table, below). However, the authors point out, greater refuelling infrastructure can mitigate this relative disadvantage. The trucks' range was affected by the fact that one of the two fuel types tested, CNG, remains in gas form and hence retains lower energy per volume than LNG or diesel.