SemiAnalysis forecasts a 50GW datacenter capacity addition in 2027. Over 60GW of datacenters are currently under construction. Year-to-date, 1.3T USD in binding datacenter leases have been signed. Construction starts for self-built datacenters are at record highs. Oracle signed 4.5GW of leases between August and October 2025. Meta, AWS, Microsoft, Google, Nvidia, AMD, Anthropic, and OpenAI are all pursuing GW-scale leases. Modular designs like Google’s electrical architecture and Meta’s tent design reduce build times. Prefabricated data halls and simplified shell designs cut construction to under 10 months. DayOne achieved 9-month build timelines for 3GW of leased capacity. Power constraints are being addressed through innovative solutions.
What changed
Datacenter leasing was stable between H2 2023 and H1 2025 due to Microsoft's freeze.
What it unlocks
Accelerated AI model progress and cheaper AI compute through increased datacenter capacity.
- 60GW under construction
- 50GW capacity addition forecast for 2027
- 1.3T USD in lease contracts signed YTD
- 4.5GW Oracle datacenter leases Aug-Oct 2025
Sources