See above post. Here's an example - this guy used 16 of the larger peltiers, and managed to get 14 V and 1 amp for 14 watts. So less than 1W per Peltier. You will need smaller motors.This is the one that's set to be delivered next week, my project is due on the 23rd.
Aideenpeen peltier module 12v. ....
But for an estimate, I would be EXTREMELY HAPPY if I got 48W. 12v and 5.8 A max. It's risky because 48W is near the maximum current and voltage but we have also ordered two different peltier brands to see which one is the most efficient.