Fresh & Easy said the new CNG vehicles produce 20% to 30% less emissions than comparable diesel vehicles.

The CNG vehicles have been developed through a $38.7m Ryder/San Bernardino Associated Governments (SANBAG) project that is part of a joint public/private partnership between the US Department of Energy, the California Energy Commission, the Southern California Association of Governments Clean Cities Coalition, and Ryder.

Fresh & Easy already has introduced trailers that include a hybrid refrigeration vector unit which minimizes the amount of fuel used to safely cool and transport store products.

Trailers also include an automatic refrigeration shut-off when optimum temperature is reached inside the cooling chamber, as well as a complete engine shut-off once parked at the stores.

Fresh & Easy spent $13m in a 500,000sq ft solar roof installation, which produces 20% of the energy for its entire distribution center.