points by khalic 3 days ago | 0 comments
Because they would be generated with CO2 by industrial processes or carbon capture. I don't see the process becoming economically viable, and hydrocarbon combustion create other toxic byproducts, compared to hydrogen. It will still make sense for usages that require a high J/kg fuel ratio.
Spring and fall are peak solar collection times, summer and winter are peak energy use times. So collect the carbon in fall, burn it in winter, re-collect it in spring, burn it in summer...