3. They're a reliable customer of power. That means that they will alway pay the bill, even if it is high. The grid operators and generation plant operators can charge them a huge premium for bulk power, then use that extra revenue to build more power plants.
I needed a good laugh, but that is exactly the opposite of how it actually works. They will be a discounted bulk price, or they'll build somewhere that will. That discount will delay the building of any new generating capacity, because the utility doesn't have the income. And while they will reliably use power, big customers generally get - because again, if they don't, they'll go somewhere that will - generous payment terms (you have to pay within 30 days of receiving at statement, they may have months, or more), and often don't live up to those.
All of those fairly standard business practices are easier to arrange in third world countries. That's why they're building there, and not in the US.