Douglas Donnellan

Douglas Donnellan

Douglas is a Research Analyst at Uptime Institute covering sustainability in data centers. His background includes environmental research and communications, with a strong focus on education.

Latest Research

US states rethink tax breaks amid rising scrutiny and costs

Policymakers across the US are reassessing tax incentives for data center operators, reflecting shifting priorities around infrastructure, costs and community impacts.

Net-zero timelines are becoming more realistic

Net-zero commitments are becoming more common across the data center industry, but power demand growth and stricter carbon accounting rules are reshaping expectations.

REPLAY | Five Data Center Predictions for 2026

In this webinar and report, Uptime Intelligence looks beyond the more obvious trends of 2026 and examines some of the latest developments and challenges shaping the industry. AI is transforming data center strategies, but its impact remains uneven…

Five data center predictions for 2026

Uptime Intelligence looks beyond the more obvious trends of 2026 and examines some of the latest developments and challenges shaping the data center industry.

Uptime Intelligence Research Agenda

The Uptime Intelligence research agenda includes a list of published and planned data center research reports for 2026, focusing on: AI workloads, power, cooling, sustainability, resiliency, operations, staffing, and security.

Enterprise and colo spending strategies for 2026 vary

Operators in both enterprise and colocation segments anticipate larger budgets in 2026. While capacity expansion remains the primary driver of overall planned spending, investment priorities for supporting growth differ between the two groups. Year…

Supply chains show signs of stability, but delays persist

Data center operators reported fewer supply chain disruptions in 2025 than at any point in the past 5 years, although the level of impact still varies by region and market segment. Many continue to face delays in accessing critical equipment or…

Mapping PUE trends by data center region, age and size

This report analyzes facility-level PUE data from the Global Data Center Survey 2025, highlighting differences by region, facility size and age. It assesses the vulnerability of the industry to PUE minimum performance standards.

Uptime Institute Global Data Center Survey 2025: supplier view

The Uptime Institute Global Data Center Survey, now in its 15th year, is the most comprehensive and longest-running study of its kind.This report highlights some of the results from vendor, consultant and product supplier respondents and provides…

Uptime Institute Global Data Center Survey 2025: regional view

The Uptime Institute Global Data Center Survey, now in its 15th year, is the most comprehensive and longest-running study of its kind. This report provides a regional view of the results and highlights the different challenges and strategies of…

REPLAY | Uptime Institute 15th Annual Global Data Center Survey Results

The Uptime Institute Global Data Center Survey, now in its 15th year, is the most comprehensive and longest-running study of its kind. The findings in this report highlight the practices and experiences of data center owners and operators in the…

Uptime Institute Global Data Center Survey 2025

The 15th edition of the Uptime Institute Global Data Center Survey highlights the experiences and strategies of data center owners and operators in the areas of resiliency, sustainability, efficiency, staffing, cloud and AI.

AI power fluctuations strain both budgets and hardware

AI training can strain power distribution systems and shorten hardware life - especially in data centers not built for dynamic workloads. Many operators may be underestimating these risks during design and capacity planning.

REPLAY | Annual data center outage analysis 2025

Preventing outages continues to be a central focus for data center owners and operators. While infrastructure design and resiliency frameworks have improved in many cases, the complexity of modern architectures continues to present new risks that…

Annual outage analysis 2025

The prevention of outages has always been a top priority for data center owners and operators - but outages do occur. This report analyzes recent Uptime Institute data on IT and data center outages: their causes, costs and consequences.