Semiconductor CitiesAnthropic Barber Lake
Under construction checked 1 Nov 2026
Facts
- Owner
- Cipher Mining
- Main user
- Anthropic
Timeline
Site grading and civil works begin.
Foundations of Building 1 are visible.
Building 1 shell is complete, with rooftop units installed, and most air-cooled chillers in place in a ground yard to the north. Most of the 120 backup diesel generators are also in place. Substantial progress since Nov 2025, still under construction and not yet energized.
Building 1 Phase I is operational: 168 MW critical IT power (244 MW gross), running Google TPU v7 (chip type inferred, tagged likely). We estimate ~Dec 2026, about 3 months later than the disclosed target, because the site is shell-complete but not yet energized as of the Jul 2026 image. Disclosed target: [Cipher 2025-09-25 PR](https://www.globenewswire.com/news-release/2025/09/25/3156107/0/en/Cipher-Mining-Signs-168-MW-10-Year-AI-Hosting-Agreement-with-Fluidstack.html) states the 168 MW critical IT load is "expected to be delivered by September 2026."
244 MWBuilding 1 Phase II is operational: 207 MW total critical IT (300 MW gross). Phase II adds 39 MW critical IT (see [Cipher 2025-11-20 PR](https://www.globenewswire.com/news-release/2025/11/20/3191801/0/en/Cipher-Mining-Signs-Additional-56-MW-10-Year-AI-Hosting-Agreement-with-Fluidstack.html)). We estimate ~Apr 2027, about 3 months later than the ~Q1 2027 target, based on construction progress.
300 MWPast entries are observations; entries marked projected are estimates and can change.
- Cipher signs 168 MW AI hosting deal with Fluidstack, Google backs it (Sep 2025)
- Cipher adds 56 MW gross to reach 300 MW at Barber Lake (Nov 2025)
- Cipher 8-K exhibit: 207 MW total critical IT load (SEC, Nov 2025)
- Anthropic to expand use of Google Cloud TPUs (Oct 2025)
- Anthropic $50B US AI infrastructure with Fluidstack (Nov 2025)
- DCD: Cipher secures Fluidstack as customer, Google as investor
- Epoch AI: AI data centers dataset (CC BY 4.0)
Data: Epoch AI, AI data centers dataset, licensed CC BY 4.0. We selected fields, cleaned location names, and added the status label.