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Efficiency as in energy/kg? Tesla batteries: 207 watt-hours per kilogram (per google search) Hydrogen: 120-142 MJ per kilogram (per google search) Conversio
by peteradio 7y ago
Efficiency as in energy/kg?
Tesla batteries: 207 watt-hours per kilogram (per google search)
Hydrogen: 120-142 MJ per kilogram (per google search)
Conversion from MJ to watt-hours: 277.778 watt-hours per MJ
120*277.778/207 ~ 161 more compact. Assuming energy conversion losses are equal.
- i_am_proteus 7y agoEfficiency in terms of watts out from the medium divided by watts into the medium over a normal duty cycle.
- tigershark 7y agoAs I said in another comment with some napkin calculations is about 30%. Another user gave a 22% number compared to 73% for batteries. The difference is hugely in favour of batteries.