The 475kw is my excess after powering my home and charging batteries, the excess is routed back to the main grid and the electric company pays me a set rate per kw. In essence, I am making money with that, but it's a new system that I put together to run a mining operation.
Okay so is the 475 your daily excess?
For arguments sake that would be 20 kwatt per hour.
So let's be safe and derate by 20 percent
This means you can use 16kwatts of miners this would be 11 s-7s
That is about 50th.
The gear you can get right now s-7s or avalon6s
Are you capable of running 240 volts?
You need to do this it allows for better psus.
Send me a pm I could give you more info.