Koch-Blank: Methane leakage has 5x the 20-year warming impact of hydrogen per megajoule
Thomas Koch-Blank · What hydrogen leakage means for the climate · Feb 9, 2023 · at 13:36
Thomas Koch-Blank of RMI compares the 20-year global warming impacts of leaked natural gas and hydrogen normalized for their respective energy densities.
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“For natural gas, it goes from 25 to 80, roughly, from a, when you compare a hundred to 25. And for hydrogen, it goes from 10 to 40, so it increases substantially, but it's still half of the global warming impact, global warming potential of Natural gas per kilogram. But then hydrogen has a higher energy content of almost, or roughly, a 120 mega joules per kilogram, and natural gas is around 50. So there is a factor of two and a half again. So the first factor of two and then another factor of two and a half gives you a total factor of five in between.”
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