Any estimates on mining costs?

[cafucafucafu]

Has anyone published calculations on how much it costs to mine a Bitcoin by these big mining warehouses?

[cafucafucafu]

But would they make profits under the current prices?

[TheJuice]

But would they make profits under the current prices?

Yes. It's getting very slim with current hardware. Most don't see more than another double in difficulty until 'gen4'.