It doesn't matter if they do use wind - they'll still need their geothermal plants
Humans will likely never run 100% on wind and solar power because they are unreliable energy sources. With pumped hydro storage and other techniques we may approach this, but wind and solar simply aren't good enough to run heavy industry.
Imagine having a week or two of calm weather and being forced to shut down your entire countries engineering industries: No ore is being smelted into steel, no steel is being formed into sheets or bars. Car factories are halted, aluminium refineries are turned off. Silicon manufacture (eg computer chips) production is halted. Potentially large saw mills, textile mills and fabrication shops will also have to be shut down.
Note that in the current world most power companies load-shed residential areas before industrial areas (AFAIK). Many industrial processes cannot be turned on/off quickly without serious problems: That pool of molten steel glowing nicely in a crucible just set into a solid lump etc. etc.
So even if they use solar for most of their energy requirements, some of the time they will have to ramp up other sources such as their geothermal plants to take up the slack.
Side note that geothermal plants may have reasonably short lifespans if pushed hard. They cool down the earth underneath them and then can't extract much more power.