Simply put, I have access to excess computing resources and power.
Simply put, you work at a place where there are lot of computers under your supervision.
Making them basically free.
And you've got that idea that as it's not you who pay the bills, you could screw your employer, use some more power, and they probably won't notice or won't care and pay your bill.
You should actually write:
I think I can steal power from my employer and get away with it. I can also use their computers without them knowing. Send me your GPUs and we'll both benefit from it.
If it's not the case then I'm genuinely sorry for my accusations and I am equally genuinely interested in how one can get “access to excess computing resources and power which are free” without stealing/screwing anyone.