Stadler Rail’s hydrogen powered multiple-unit passenger trainset has set a record by traveling more than 1,700 miles without refueling or recharging.

The FLIRT H2 trainset, destined for use on the San Bernardino County Transportation Authority’s Arrow service, covered 1,741.7 miles on the test loop at the Transportation Technology Center in Pueblo. The record run — certified by observers from the Guinness World Records team — began on the evening of March 20. With the train operated in shifts by engineers from Stadler and ENSCO, operators of the TTC, it concluded more than 46 hours later, at 5:32 p.m. Mountain time on March 22.