Plan for the Worst and Hope for the Best? I'm going to run my own personal numbers based on the worst case scenarios, but I am more than willing to be proven wrong.
I would just line up everything fairly.

Take what the companies have let out, and use those figures, rather than only doubling Tom's.
I understand what you're saying, but facts leave no room for error. Estimates do. We have no official statement about the final power draw. Rough numbers thrown up and quickly taken down do not count.