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

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…

 
DLC adoption remains slow and steady

Direct liquid cooling adoption remains slow, but rising rack densities and the cost of maintaining air cooling systems may drive change. Barriers to integration include a lack of industry standards and concerns about potential system failures.

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.

Keynote Reports 28 min read
 
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.

DORA update: what the EU act means for data centers

Under the EU’s Digital Operational Resilience Act (DORA), data centers designated as “critical” for their role in financial services will face direct regulatory oversight and new resiliency requirements.

 
Data center AI strategies are mixed in early 2025

Organizations currently performing AI training and inference leverage resources from a mix of facilities. However, most prioritize on-premises data centers, driven by data sovereignty needs and access to hardware.

Data Reports 6 min read
 
Sustainability requirements rise as climate risks intensify

Results from the Uptime Institute Sustainability and Climate Change Survey 2024 reveal how operators navigate climate change risks while expanding efforts to improve their environmental footprint.

Cloud cost savings depend on application design

Scalability and cost efficiency are the top reasons enterprises migrate to the cloud, but scalability issues due to application design flaws can lead to spiralling costs — and some workload repatriation to on-premises facilities

 
AI adds to rising demand for capacity

This report highlights some of the findings from the Uptime Institute Capacity Trends and Cloud Survey 2024. Findings offer insight into what is driving capacity expansion.

Data Reports 4 min read
 
Cloud repatriation is overstated

This report highlights some of the findings from the Uptime Institute Capacity Trends and Cloud Survey 2024. In particular, this report offers an insight into what drives migration to and from the public cloud.

Data Reports 4 min read
 
REPLAY | Five data center predictions for 2025

Uptime Intelligence surveys the data center industry landscape to look deeper at what can actually happen in 2025 and beyond based on the latest trends and developments. The stronghold that AI has on the industry is a constant discussion - but how…

 
Uptime’s predictions for 2025: an overview

This summary of the 2025 predictions highlights the growing concerns and opportunities around AI for data centers.

 
Five data center predictions for 2025

Uptime Intelligence looks beyond the more obvious trends of 2025 and examines some of the latest developments and challenges shaping the data center industry.

Keynote Reports 28 min read