[mkl]

Not enough to be useful, I think. The Jetson One has a maximum power output of 88kW, and a very fit human (e.g. elite sprint cyclist) can briefly reach up to 2.5kW (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8282832/#:~:tex....).

[nradov]

Elite cyclists can only hit 2.5kW for a few seconds. Sustained output for about 20 minutes will only be in the 0.4kW range, and regular people can't even do half of that.