Hydrogen and Fuels from Space Solar Power
Could space solar power produce hydrogen and synthetic fuels, and at what cost?
Chapter summary
technically yes, since electrolysers work best with steady power and space solar power is steady.
Key takeaways
- 1
Electrolysers use about 50–55 kWh of electricity per kilogram of hydrogen.
- 2
They cost less per kilogram of output when they run all the time, which favours firm supply such as space solar power over variable ground solar.
- 3
But the cost of electricity sets the price: at Setcoin's reference $357/MWh, electricity alone would cost about $19 per kilogram of hydrogen, several times the cost of hydrogen from natural gas.
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