SemiAnalysis Forecasts 51.2 GW of Global Data-Center Additions in 2027
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SemiAnalysis forecasts that global annual additions of data-center capacity could reach 51.2 GW in 2027, compared with 25 GW in 2026 and 15.6 GW in 2025. The forecast points to a sharp acceleration in AI-infrastructure deployment, although it is not evidence of commissioned capacity.
- SemiAnalysis forecasts 51.2 GW of global annual data-center capacity additions in 2027.
- The forecast compares with 25 GW in 2026 and 15.6 GW in 2025.
- More than 24 GW is reported to be in late-stage construction and expected for delivery in 2027.
- Approximately US$1 trillion of binding, non-cancellable data-center lease agreements had reportedly been signed in 2026.
- GPUs, HBM, networking, liquid cooling, electrical infrastructure and power could all face substantially higher demand if the forecast is realised.
SemiAnalysis expects global annual data-center capacity additions to reach 51.2 GW in 2027, according to a report cited by TechNews. The estimate compares with 25 GW of additions in 2026 and 15.6 GW in 2025.
The cited analysis also states that more than 24 GW of data-center capacity is at a late stage of construction, based on satellite analysis, and is expected to be delivered in 2027. This is an expected delivery pipeline rather than completed or operational capacity.
Demand commitments are also substantial. By the point described in the source, approximately US$1 trillion of legally binding, non-cancellable data-center lease agreements had been signed in 2026. Those agreements do not establish that the associated capacity has been built, commissioned or fully funded.
SemiAnalysis links the projected build-out to demand for GPUs, HBM memory, networking equipment, liquid cooling, electrical infrastructure and power. If the forecast materialises, the market could move to a significantly higher annual deployment rate, increasing the addressable demand for power and engineering infrastructure alongside compute systems.
The analysis further suggests that, as power and construction constraints become less restrictive, the next bottleneck could shift back toward semiconductor and memory availability. That remains an inference from the forecast rather than confirmation that supply-chain constraints have shifted.
If realised, the projected expansion would materially increase demand for compute hardware and the electrical and mechanical systems needed to support it. As energy availability and construction constraints ease, SemiAnalysis suggests that semiconductors and memory could again become the limiting parts of the supply chain.
- TechNews 科技新報 / КитайскийПервоисточник →
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