This is a medieval-style windmill that uses the CKF utility windmill. The template hammer does not recognize the utility windmill as a selectable structure, so it will need to be added separately. There is a half pillar on the sloped roof at the top that the windmill attaches to. I used the Gothic custom cosmetic and Amberviel for the stairs, but the skins are not needed. You can use the walls of a similar style available in the CKF mod.
This is an energy-producing wheelhouse. The CKF Utility Water Wheel is not identified as a selectable structure with the template hammer, so you will have to install that separately. I used Gothic, Viking, and Amberviel skins, but you could use the Medieval walls that come with CKF instead. Water wheel will need to be partially submerged. This was built in Winterhold on the Bjarnheim map.