SemiAnalysis finds six Texas datacenter campuses totaling 8.7GW need air permits during Governor Abbott's pause on datacenter permits
We looked at each Texas site planning on-site power that falls under Governor Abbott’s Sept 21 directive, which tells TCEQ to stop issuing any permit tied to a datacenter until ERCOT finishes its review, and found six campuses, 8.7GW in all, needing air permits during the pause. (1/5)🧵
Context
Texas is one of the main places AI companies are building giant datacenters with their own power plants. A state freeze on permits for that power could push back when new compute comes online, though SemiAnalysis expects only about a quarter of delay.
Governor Greg Abbott's September 21 directive told the Texas Commission on Environmental Quality to stop issuing permits tied to datacenters until the grid operator ERCOT finishes a review. An earlier pause in August covered only grid connections. The thread was published at 7:00 PM Eastern on October 24.
Deep dive
SemiAnalysis posted a five part thread at 7:00 PM Eastern on October 24 looking at every Texas datacenter site planning its own power that falls under Governor Abbott's September 21 directive. It found six campuses, 8.7GW in all, that need air permits while the state pauses them.
The firm explains why the directive matters. Abbott's August pause only covered connections to the grid, so campuses building their own generation behind the meter were untouched, and on site power became the workaround. SemiAnalysis says the state environmental agency, TCEQ, now confirms the freeze covers those air permits too.
The 8.7GW is the total campus size, not the amount delayed. According to the thread, three of the six already have a first phase of generation permitted and only wait on expansion permits, one has filed and is waiting, and two have not filed yet. Its chart names the Vantage, Google and Nexus campuses as partly permitted, a SpaceX campus as filed, and a second SpaceX campus and CloudBurst as not yet filed.
Because an air permit only gates the power plant, site work and already permitted generation keep moving. SemiAnalysis says a three month pause only becomes a real delay for a campus that must start building its plant before the review ends. Its base case is that TCEQ resumes in December after ERCOT delivers its December 10 report, so phases needing permits soon slip about a quarter.
What to expect next
The date to watch is ERCOT's report due December 10, and whether Texas lifts the pause or adds new conditions for datacenters that build their own power. A longer freeze would hit the SpaceX and CloudBurst campuses that have not filed yet. Developers may shift some planned capacity to other states, and the outcome will shape how quickly new AI compute in Texas comes online in 2027.