Is Wind Energy Limited Or Unlimited?

Depends on how you look at it.  In theory, it is limited.  There is only so much land where there is enough wind to make it economically viable to put in wind generators.  But our current use of wind power is so small that there is almost an unlimited market for quite some time.  

There is what seems to be an unlimited supply of it at this point in time, like the Santa Anna winds that show up every year. Or El Nino, and El Nina. It really is a great question, and for the time being, I think that it is unlimited. Hope this helps.