Clean Air Power, which manufactures dual-fuel engine management systems, has won a new contract with Sainsbury’s.

It is retrofitting 50 of its trucks with Genesis-Edge - a system that allows diesel engines to run on diesel and natural gas. The trucks will be delivered during the first or second quarter. Sainsbury’s already has 48 Genesis-Edge trucks.

“Demand is being driven by the increased supply of vehicles available to retrofit,” said CEO John Pettitt.