525 billion kWh of electricity would be required to produce 10 million tons of hydrogen would require

A metric ton is equal to 1,000 kilograms, so 10 million metric tons is the same as 10 billion kilograms. Producing one kilogram of hydrogen requires, on average, about 52.5 kilowatt-hours (kWh) of electricity. To produce 10 billion kilograms of hydrogen, you would need 525 billion kWh of electricity (10 billion x 52.5 kWh). In other words, generating 10 million metric tons of hydrogen would consume around 525 billion kWh of electricity, which is roughly 12.5% of the total electricity supply in the United States.