I been contemplating a lot on how to make some serious passive income, passive income meaning making money while being a lazy butt. Since I hate working for my money.

So I got in to Cryptocurrency and started investigating in whether I can create a Crypto mining rig but there are some obstacles in regards to this.

1) There are some skeptics saying cryptocurrency won't last to long or is not a stable investment venture compared to buying stocks, bonds or investing in a IRA.

2) Energy consumption of a mining rig is ridiculous, for a Antminer S9 pro it uses around 1,375 watts, equating between 0.13 cents to 0.30 cent per hour.

there are other objectives to this to but I am mostly trying to focus on just the energy problem and how to maximize my profitability by eliminating the middleman which is the utility bill.

What first comes to mind is Solar panels and is it possible to produce 3000Kw energy per month or more. And pretty much achieve getting my house off the grid where it is totally self sufficient.
Assuming I got my rig set up where I am making at least $15 per day from crypto mining.

Next thing is the noise and heat problem so I wondered if I can build a shed in my backyard with solar panels, making it possible to power the devices and the AC unit without taking a hit from the electric bill.
like a self sufficient island.

Like this but imagine a bunch or Antminer S9 and GPU mining rig with a AC unit to keep the devices cool.

Building a Solar Powered Workshop
https://youtu.be/xnSew-tCuPo

What other ideas can you share to minimize cost on energy?