Yes, we have one or two cottages in this locality that aren's connected to the mains, though they do have gennys or even windmills now! I wired one out in 2002 which had nothing except a solid-fuel Aga, fires and oil lamps It was, as I recall from ten or so years ago, the most beautiful place to spend new years eve Very atmospheric.
Sadly, all such places are now holiday cott's
Ireland eh? Sorry - didn't realise that was the locality!!
If hindsight were foresight, we'd all be millionaires!