[not]

Instead of calling it Solar Powered Bitcoin Mining it's more of a lottery as it will be mining solo with older hardware.
There are a few other projects like this but what I'm working on is pretty straightforward.

Before any details, I am not suggesting you will:

"Get rich quick" from this
"Get rich slowly" from this
Mine any profit
have any other logical end point inferring gains other than informational freedom from this project - at all.

This project is simply to put a use to old hardware that many miners have laying around the shop or office.

Early stages of the project will simply have a solar powered USB miner with controller mining in sunny parts of the day attached to a laptop. (Lottery - solo mining.)
Further progress will have a battery bank to supply 24/hr mining on solo pool - lottery style. A large enough panel and bank would also support laptop or controller power.
Eventually an entirely off-grid approach with 'miner', controller/computer/laptop wireless connected in a set-and-forget setup.

Cellular connection would be useful for solar lottery rigs which are too far for WiFi to reach. (The tricky and expensive bit - which will likely never break even, but sounds interesting nonetheless.)

Thanks for reading, and any input, thoughts or ideas are appreciated.  This is for learning and BTC entertainment purposes only.