Workhorse Starts Building Lightweight Electric Step Vans for UPS - Trucks Workhorse Group Inc. has begun building its lightweight electric step van that it says can carry a class-leading 6,000 pounds and go 100 miles before recharging. The first trucks off the line in Union City, Ind., will be delivered to UPS as part of a 50-truck test fleet. If UPS likes the performance, it will complete an order for 950 trucks that it placed in June. Workhorse said it had other orders for early production but declined to name the customers. The NGEN-1000, which gets the equivalent of 40 mpg, weighs 10,001 pounds fully loaded and 4,000 pounds empty. The cost to travel 100 miles would be about $6 based on the national average cost of just over 10 cents per kilowatt hour.