Answer:
I don't have the time to write a big paper, but I can give you some bullet points.
These are pro-human powered machines.
*Human powered machines can work without need for the sun every few days.
*In an emergency Human powered machines are easier to repair & they are less likely to get damaged.
*Human powered machines take less maintenance over time compared to solar panels.
*Solar panels are more expensive and would eat into funds better used on other rescue equipment.
