Id say the maintenance would even out considering the sheer amount of turbines you would have to build to make up for the weak wind.

This is all long term stuff anyway but you are going to need to ship in everything, a small nuclear reactor with water and uranium is a lot smaller then like 30 turbines

The first mars colony is going to be almost entirely dependent on the earth (moon maybe?) for some time till manufacturing gets up and running, better to go for density because you aren't building shit unless robots get way better.