I don't understand hoisting it with a halyard. you mean while you are anchored and
sails are down?
The problem with monohulls is not much space to put a wind
generator, and in the few spaces available it casts a shadow on
solar panels.
I've often thought, what about a folding wind generator, that you could fold outwards from the sides of the
boat after you left the marina? It couldn't be too low, or it would hit the
water while heeling, but if it was high enough it could catch the wind without interfering with
solar.