Data Center Capacity Growth Trends: Findings from the 2026 Global Data Center Survey

About This Document

This concise Uptime Institute industry report draws on the 2026 Global Data Center Survey to examine growth in data center capacity and IT load density. It is based on responses from 801 data center owners and operators within the full respondent pool of 1,635. The analysis covers plans to build and upgrade high-density space, the distribution of installed IT capacity, rack densities, server refresh cycles, infrastructure redundancy and the quality of operational data.

Key Takeaways

• High-density workloads are becoming a mainstream driver of capital programs: 52% of respondents have built or upgraded dedicated space in the past 12 months, while 70% plan to do so in the next 12 months.
• The share of data centers with total provisioned IT capacity of 30 MW or more rose from 12% in 2023 to 24% in 2026, reflecting the growing scale of facilities.
• The most common rack density remains below 10 kW per rack, reported by 69% of respondents; however, the share of sites with a maximum density of 50 kW or more increased from 10% to 13% in one year.
• Enterprise applications, rather than generative AI, were most often identified as the primary source of the highest-density deployments: 59%, versus 21% each for GenAI training and GenAI inference.
• N+1 is the most typical redundancy configuration, used by 44% for power infrastructure and 52% for cooling; respondents generally rate the quality of their operational data as high or acceptable, although 7% to 14% are uncertain about it.

Key Figures

Survey period

17 марта — 1 мая 2026

Uptime Institute 2026 Global Data Center Survey

Total survey respondents

1 635 респондентов

Full 2026 Global Data Center Survey sample

Data center owner/operator respondents

801 респондентов

Respondent base for this report

Built or upgraded high-density space in the past 12 months

52 %

n=607; combined build, upgrade and both responses

Plans to build or upgrade high-density space in the next 12 months

70 %

n=570; combined build, upgrade and both responses

New high-density construction planned for the next 12 months

23 %

n=570

High-density upgrades planned for the next 12 months

17 %

n=570

Both construction and upgrades planned for high-density space in the next 12 months

31 %

n=570

Enterprise applications as the driver of the highest-density deployments

59 %

n=648

HPC as the driver of the highest-density deployments

27 %

n=648

Generative AI model training as the driver of the highest-density deployments

21 %

n=648

Generative AI inference as the driver of the highest-density deployments

21 %

n=648

Data centers with provisioned IT capacity of 30 MW or more

24 %

2026, n=671; compared with 2023

Most common rack density below 10 kW per rack

69 %

n=679

Most common rack density of 50 kW per rack or more

3 %

n=679

Maximum rack density of 50 kW per rack or more

13 %

2026, n=676; compared with 2025

Typical N+1 power redundancy

44 %

n=639

Typical N+1 cooling redundancy

52 %

n=626

Server refresh cycle of every three years or more frequently

33 %

n=659

Server refresh cycle of every six years or less frequently

18 %

n=659

Practical Value for Data Center Owners

For owners, investors and project teams, the report provides a benchmark for expansion rates and density trends. Capacity and infrastructure planning should allow for high-density hall scenarios, even though typical current loads at most sites remain below 10 kW per rack. The findings can support phased scaling of UPS capacity and cooling, test the suitability of N+1 as a market benchmark, and account for the fact that substantial high-density demand comes not only from AI workloads but also from conventional enterprise applications. The rising share of facilities at 30 MW or above points to the investment and infrastructure risks associated with larger sites.

Where It Applies

Topics