Some friends with a Torqueedo.
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Not in this photo, these folks have a roughly 2' by 3' solar panel mounted on their dinghy davits on the stern.
They have no refrigeration (not uncommon in Maine with ice easily available), so they often have too much power to deal with and the Torqueedo onboard can usually use it. I could see them actually go for joy rides just to use up excess watts.
I suspect most Torqueedo's will be found on hard dinghy's like their Fatty Knees tender, above. Easily pushed and pleasant at half speed, my friends can go pretty much as far as they want in their tender. The Torqueedo stays onboard the big boat as they'll row often.
I haven't seen as many Torqueedo's on inflatables(the # is growing though).