Mr. Denis O'Sullivan:

It varies, depending on the truck involved. We had a number of trucks converted for some of the earlier trials and it cost between €15,000 and €17,000 to convert them. It makes sense to do so in the case of trucks and buses which are clocking a high mileage or number of kilometres, but the real benefits, from the point of view of fuel cost savings and emissions, come from dedicated CNG vehicles. The differential in cost between a new truck run on diesel and the same truck run on CNG is roughly 10% of the purchase price.