No I will try to write something up about the offgrid system this week...its fairly basic but does the job and keeps the fridge freezer going 24/7 so that's the main thing. But I cannot see how you can make it even remotely economic if only using for Bitcoin mining. Hydro if you were lucky enough to have a steady flow waterway would be the ultimate as you have constant power and can match and maximise the potential of the miners. We are always up against the devaluation of the miners as faster more efficient competitors come online. Your Nano3S 6TB being significantly more efficient than my 4TB Nano3 when the Nano3 was new only a few months ago.