Estes Express Lines will soon be adding 50 new natural gas trucks fueled with Clean Energy Fuels’ Redeem renewable natural gas to its growing sustainable fleet.

Estes’ new trucks will feature Cummins Westport’s ISX12N engine, and the carrier is expected to use an approximate 2.8 million gallons of RNG during the seven-year contract.

Clean Energy’s Redeem RNG fuel is derived from capturing the biogenic methane produced by the decomposition of organic waste from dairies, landfills, and wastewater treatment plants. According to the company, it can reduce greenhouse gas emissions by at least 70%, and even up to 300% depending on the source of the RNG.

“Switching to trucks fueled with ultra-low carbon fuel is vital to improving air quality and fighting climate change in the regions that we serve,” said Estes CEO and President Rob Estes. “Clean Energy’s Zero Now program has enabled us to switch to cleaner fuel and engine technologies that make financial sense – so it’s a win on several levels.”

Estes purchased the trucks through Clean Energy’s Zero Now program, which reduces the price of a natural gas truck at par with a diesel truck, as well as guaranteeing a fuel discount for the duration of the agreement.

“By adding 50 clean, sustainable natural gas trucks to its fleet, Estes demonstrates their leadership in the drive to lower the carbon footprint by the heavy-duty trucking industry,” said Brett Lindsay, vice president of Clean Energy.