It took just over 3 years to get approved, and the reason it took so long is that it is massive project (1400 acres) and has enormous infrastructure requirements that needed comprehensive study by reviewing agencies to make sure the area could handle them.

The first two fabs there will require 17 million gallons per day of water and when fully operations in the early 2040s the facility will need 48 million gallons per day. That is more than existing infrastructure can handle so the project also includes a new pipeline extension to Lake Ontario.

That water requires extensive treatment before it can be discharged. It will be pretreated on site, then go to a new $1 billion industrial wastewater treatment plant being for this project, and then finally discharged into the Oneida river.

The energy requirements when fully operation are 1850 MW drawn continuously 24/7 every day of the year. That's 16 TWh a year.

For comparison that is a little above the annual electricity use of Ft. Worth, TX or Charlotte, NC, and little below Indianapolis, IN. It is about 14% under San Francisco, CA. A little over half of Chicago, IL, about 1/3 of Los Angeles, CA, and about 30% of NYC.

That's way beyond the existing grid capacity, so lots of infrastructure upgrades there are taking place.