Isn't it cheaper to cool a datacenter in a more temperate/cool region than one that has a 9-month-long summer?
Why would anyone want to go to Texas to build a datacenter and worry about the cooling, when they could pick any other state?
Long summers = tx actually has lots more Solar, but also biz friendly laws, biz friendly taxes, lots of corp HQ, cheap land, own power grid (for better or worse), cost of labor, etc.
Because the other big expense in a datacenter: electricity. Texas has really cheap electricity compared to the rest of the country, sitting at second cheapest after North Dakota.