Hydrogen has the benefits of delayed time-of-use.
For example, nuclear power continues to create energy at night, at 2am when there aren't many trains running.
In contrast, when an electric train pulls from the grid, it needs electricity immediately, no matter how loaded the grid is. Electric Trains running at 7pm (during the "Duck curve") will inevitably be powered by natural-gas peaker plants.
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In contrast, Hydrogen electrolysis could continue into the night and be powered by "otherwise unused" 2am or 3am electricity from nuclear power. Even if the train was running at 7pm, the electricity comes from the most advantageous time throughout the day.
That is to say: Hydrogen is a fuel, AND a battery, AND is compatible with electrification technologies thanks to the fuel cell.
For example, nuclear power continues to create energy at night, at 2am when there aren't many trains running.
In contrast, when an electric train pulls from the grid, it needs electricity immediately, no matter how loaded the grid is. Electric Trains running at 7pm (during the "Duck curve") will inevitably be powered by natural-gas peaker plants.
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In contrast, Hydrogen electrolysis could continue into the night and be powered by "otherwise unused" 2am or 3am electricity from nuclear power. Even if the train was running at 7pm, the electricity comes from the most advantageous time throughout the day.
That is to say: Hydrogen is a fuel, AND a battery, AND is compatible with electrification technologies thanks to the fuel cell.