Google Waltham Cross

Compute capacity

123.8K H100e

IT power

88 MW

Capital cost

$3.3B

Google Waltham Cross is an AI data center operated by Google, located in the United Kingdom (Land at Maxwell's Farm West, Great Cambridge Road, Cheshunt, EN8 8XH). Its compute is used by Google DeepMind.

The site holds roughly 123,800 H100-equivalents of AI compute. It draws about 88 MW of power. Building and equipping it represents an estimated $3.3B of capital in 2025 dollars. It currently runs TPU v6e, TPU v7.

Power is supplied through Shell Energy Europe, Engie. These figures are modelled estimates, not disclosures: Epoch AI derives them from permits, satellite imagery and reported spending, with an uncertainty of roughly 1.4x to 1.6x depending on the metric.

Timeline

Compute (H100e): 0 (2024-01-01) → 123.8K (2026-04-23)

Full record

Owner: Google
Ownership confidence: Confident
Users: Google DeepMind (speculative)
Country: United Kingdom
Location: Land at Maxwell's Farm West, Great Cambridge Road, Cheshunt, EN8 8XH
H100 equivalents: 123,800
Power: 88 MW
Total capital cost: $3.3B
Current chips: TPU v6e, TPU v7
All chips: TPU v6e, TPU v7
Energy suppliers: Shell Energy Europe, Engie