Re: home mining, has anyone come across a good solution for 1-3 KW of mining/heating?
Setup is an oversized solar array, producing excess electricity (about $800 stored up)
The local grid pays 0.18c per KWh and charges 0.24c).
Discussion
What do you want to use the heat for? With some modifications an old(er) S19J (Pro) can be turned into a quiet livingroom miner. My setup delivers around $0.08 / kWh.
With some more effort, you can embed it into a mobile sidetabel like this one: 
Sounds like NZ prices! Will be interested in any results. I’ve on and off thought about this, but mainly come to the conclusion that you are better with a heat pump or wood fire and use the solar savings to buy more sats rather than mine them etc.
But of course there is the adding to the decentralisation argument.
It would be nice to see something that allows mining that financially makes sense in high cost power regions, but I haven’t seen any ideas that do for now.
If you do it purely for profit home mining is not an option, unless you have access to real cheop energy (<$0.0.6 or so). You also have to invest in equipment and who knows how much it will generate per kWh within one or two years? Could be more if btc price appreciates, but also could be less if increase in hasrate outpaces that.
But building something like this is definitely a lot of fun and you learn a lot of it.