According to the mod’s page, the Wind Turbine Mk1 ‘will give a 10MW Base power production but will be more effective at greater heights (capped at 30MW).’
At first I thought height was relative to the ground level of the plains biome (since that seems to be the lowest above-ground point on the map) so I placed the turbine on a cliff overlooking the plains - it still just gave 10MW.
Next I wondered if height was just relative to the ground underneath wherever the turbine is, so I stacked 30 1m foundations and placed the turbine atop that. Again, still just 10MW.
Finally, I thought that perhaps I just wasn’t going high enough, and that perhaps the height distances are much more drastic. So I ran north to the mountains and placed a turbine up there. But alas, still 10MW.
What am I missing, please? I want to put this height feature to good use, but I can’t seem to work out how height is calculated.