Life-cycle1 water consumption of fuel cell electric vehicles using hydrogen produced from natural gas with steam methane reforming is almost 50% less than the life-cycle water consumption of conventional internal combustion engine vehicles using gasoline. If the hydrogen is produced from solar power and water, the life-cycle water consumption is almost 60% less.
Life-Cycle Water Consumption per 100 Miles Driven

Note: This data is based on a number of assumptions, which can be found in the Hydrogen and Fuel Cells Program Data Record #17005.
1 Includes upstream fuel production, delivery, storage, and on-board utilization.