A study by MIT’s Center for Transportation and Logistics found that using electric trucks for urban commercial fleets can cost 9% to 12% less to operate than diesel-powered trucks when used to make deliveries on a daily basis in large cities. Researchers also looked at the possibility of the trucks as part of a vehicle-to-grid system, where batteries could be plugged into the electric grid for 12 hours each night as an additional electricity source for consumers. Truck owners would receive compensation from utility firms for providing the power service.