Google Red Oak is an operational AI data center hosting an estimated 108k H100-equivalent chips, scaling toward a projected 316k H100-equivalent chips — supported by 77 MW of IT power, rising to 154 MW — at a capital cost of $2.9 B, rising to $5.8 B. We estimate that it uses Google TPU v6e and Google TPU v7 chips. The timeline of IT power and compute capacity is based on satellite imagery, our cooling equipment power model, chip availability, and chip efficiency. Red Oak is unusual for mixing cooling types — one building uses dry coolers while another uses Google’s standard evaporative cooling towers.