Utility adding 20GW of new generating capacity to cope

AEP and Exelon say Amazon will be using grid but avoiding transmission fees

Data centers must make 10-year commitment to pay for 90 percent of electricity requested

Utilities and transmission networks across the US seeing growth in capacity demand from data centers

The social media giant's investment in local renewable energy generation will total $800m

Quite likely to be a planned backup facility announced by the utility last month 

Though the specifics of the agreement remain under wraps

Says it will only commit to building more data centers if it can cut electricity costs