§ Mr. Gordon PrenticeTo ask the Secretary of State for the Environment, Transport and the Regions what is the average cost of converting(a) a bus and (b) a HGV to run on (i) compressed natural gas and (ii) liquidefied petroleum gas. [50331]
§ Ms Glenda JacksonThe cost of converting these vehicles to run on compressed natural gas is approximately £12,500 for small to medium lorries and buses rising to about £18,000 to £25,000 for the largest lorries and buses. Costs for conversion to liquefied petroleum gas, where suitable engines are available, are understood to be of a similar order.