Really sorry, but this idea to this extreme will never happen. Using the windmill for power and implementing smart, electrical, possibly completely robotic machines.....maybe. Maybe even in the not-so-distant future.
But any job that works with and manipulates nature will always require at least several human minds to at the very least oversee, organize and implement all practices.
How will non-manpowered machines be able to work around such obstalces in golf maintenance as...
...sprinkler heads stuck on overnight, in the way of mowers and possibly flooding out large areas of turf or bunkers? And furthermore, correct troublshooting and repair of that sprinkler to correct the problem?
...removal and replacement of course accessories (tee markers, flagsticks, garbage cans, etc.) in the way of mowing?
...damage caused by wind, rain, animals etc. which is impossible to predict and may be in the way of machines?
...proper analysis and correct means of correction of turf weed, disease and insect problems?
There are many others.....but the day we have a group of machines that can take care of a 100+ acre golf course and all that entails with ZERO regular human input is the day we as humans aren't even needed anymore.
And beyond the idea of saving energy, I have yet to see and would find it hard to believe, a course that requires ZERO artifical inputs, such as fertilizer and chemicals. There are courses that have reduced these immensely, but none use absolutely nothing. So unless you're using compost tea and natural plant extracts.............
Your best chance is to go back to the beginning and play golf in an open field where grass has been munched down by grazing sheep, stick 18 cans with a stick in the ground and call it a golf course.