Nothing is done, just cleared the spot of grass and there is some shack there. I worked on a water wheel when I was there a year or two back, but we could not get it to work (and produce electricity). I'll make a HN post maybe someone will give me some tips on this.
r.e. electricity production; I might be able to help. My degree was Electronics (rather than Electrical) Engineering but you can't help pick up a few tips :)
(I expect there are more qualified people here too; but if none appear...)