If I've understood correctly the workflow is as follows: Miner software on PC --> pool hashrate with a mining pool (e.g. nanopool) --> mining pool pays out coins to wallet of choice. Does that sound about right? I was under the impression that GPU mining of Ethereum pays (especially with 0 electricity cost) but I thought GPU mining of BTC had been superseded by ASICs? What kind of payout do you get through nicehash - simple does sound better even if its not 100% optimal! As for the automation in respect to solar output, I do have some basic coding skills and a web portal which I guess I could monitor generation through (not aware of a specific API I can access). In my head it was just going to be turning on the PC in the morning if it looked like it would be sunny!