Consider the situation where all 250,000,000 gasoline-powered vehicles in the United States, each of which is driven an average of 20,000 km per year and requires an average of 0.55 MJ/km from the...

Consider the situation where all 250,000,000 gasoline-powered vehicles in the United States, each of which is driven an average of 20,000 km per year and requires an average of 0.55 MJ/km from the batteries, would be replaced with PEM-fuel cell vehicles that use hydrogen produced by electrolysis using electricity generated by 1-GWe nuclear power plants (operating at a 70% capacity factor). How many new nuclear power plants would be needed to be constructed to accommodate this increase in electricity demand?