Energy efficient data centres

Data centres (DCs) are foundational digital infrastructure, underpinning cloud computing, data storage, and the delivery of various online services across different economic sectors. Their increased growth in all regions of the globe reinforces the need to continue the E2DC workshop series which focuses on innovative methods to improve energy-efficiency of DCs. E2DC concentrates on a broader context of the DC ecosystem by investigating its interactions with smart cities and grids, and other sector couplings. Additionally, scientific approaches to address the broader environmental impact of digital services needs to be addressed through methods that optimize for the dual goals of environmental sustainability and energy usage. In addition to the general workshop topics around energy efficiency and sustainability, the workshop is envisaged to include research of how AI technologies can help improve DC efficiency, reliability, and assist in broadening their interaction with external dynamically growing systems such as smart cities and smart grids, and next generation district heating networks.


14th International Workshop on Energy-Efficient Data Centres (E2DC 2026)

This year we concentrate on the intersection of computing workloads and energy networks reliability and stability. The specific focus will be on the emerging challenges of maintaining high reliability for critical compute tasks while unlocking the flexibility required to support a sustainable, constrained power grid. The workshop provides a forum for scientists, engineers, and practitioners to exchange ideas on how data centers can evolve from passive loads into active grid assets. We will explore how "interruptible" loads can provide demand response, frequency regulation, and voltage support without compromising computational service level objectives (SLOs).


Important Dates

March 24th , 2026

April 7th , 2026


Paper Registration and Submission

April 21st , 2026


Notification of Acceptance

May 12th , 2026


Final Manuscript Due

Call for Papers

The workshop invites original papers of up to 8 pages that have not been previously published or currently under consideration and/or review for publication elsewhere. Topics include, but are not limited to:

  • New architectures of the data centre ecosystem to cope with dynamic demands and requirements of large data processing, e.g. distributed data centres, edge data centres.
  • Innovative use of new hardware and software technologies, including novel cooling approaches and coordination with backup and battery operations.
  • Data center and computing load modeling, measurement and forecast.
  • Workload scheduling and shifting for demand response, peak and ramp shaving.
  • Integration and interaction with energy grids, e.g. demand side response approaches for power grids, waste heat re-use in district heating networks, approaches to maximise the use of renewable energy sources in data centres, etc.
  • Understanding and mitigating the impact of bursty AI training/inference loads on local grids.
  • Reliability metrics for grid-interactive data centers.
  • Virtual Power Plants (VPP) utilizing distributed compute resources.
  • Hardware-software co-design for energy-aware computing.

Submission and publication of the work

The workshop will be co-located with ACM e-Energy 2026 Please submit your manuscript via submission portal. Manuscripts will be published in the ACM proceedings and must adhere to ACM format (with 8 pages limit including references). Submission implies the willingness of at least one author to register and present the paper at E2DC. The organizers reserve the right to exclude a paper from publication if it is not presented. For more information please contact the organizers: Ariel Oleksiak (ariel at man.poznan.pl), Jon Summers (jon.summers at ri.se), Shaohui Liu (shaohuil at mit.edu), Deepjyoti Deka (deepj87 at mit.edu)


KEYNOTE SPEAKER

Alfonso Ortega Picture
Alfonso Ortega
(Villanova University, USA)

Dr. Alfonso Ortega is the James R. Birle Professor of Energy Technology at Villanova University and Professor of Mechanical and Sustainable Engineering. He is the Director of the Laboratory for Advanced Thermal and Fluid Systems which he has led for over 30 years. He is the Founding Director of the Villanova site of the NSF Center for Energy Smart Electronic Systems (ES2) founded in 2011. Dr. Ortega received his B.S. from The University of Texas-El Paso, and his M.S. and Ph.D. from Stanford University, all in Mechanical Engineering. He was on the faculty of the Department of Aerospace and Mechanical Engineering at The University of Arizona in Tucson for 18 years. For two years, he served as the Program Director for Thermal Transport and Thermal Processing in the Chemical and Transport Systems Division of The National Science Foundation, where he managed the NSF’s primary program funding heat transfer and thermal technology research in U.S. universities. He is an internationally recognized expert in thermal and energy management in electronic systems and in experimental measurements in the thermal-fluid sciences. His research team works with many agencies and industry partners on advanced cooling for components and systems in data centers and developing large Digital Twins. Dr. Ortega is a Fellow of the ASME. He is a recipient of the 2003 SEMITHERM THERMI Award and the 2017 ITHERM Achievement Award. In 2023 he received the SEMI-THERM Hall of Fame Award for his career contributions to the field.


Opportunities for Waste Heat Recovery from AI Factories with On-Site Power Generation
Within the rapidly developing re-imagining of data center technology as a result of the acceleration of AI as a dominant driver, the explosion in power consumption has led to the emergence of off-grid data center campuses with dedicated on-site power generation. In the U.S., this has caused an immediate and growing deployment of on-site terrestrial gas turbines and fuels cells, with natural gas as an energy source, and accelerating efforts to future-proof small modular nuclear reactors perhaps as an ultimate energy source. Furthermore, the scale of energy consumption by emerging data centers has increased the economic viability of adding back-end systems to capture and re-use waste heat. In this talk I will focus on illustrating new opportunities for synergistically capturing high quality waste heat from the primary on-site power generation system and low-quality waste heat from the data center. I will show that this presents new opportunities to use the waste heat streams for producing electrical power and cooling to off-set primary electrical power demand and thereby increase overall data center energy efficiency and sustainability.

E2DC WORKSHOP PROGRAM 2026


08:00 am – 08:30 am

Registration and welcome coffee

08:30 am - 09:10 am

Keynote:

Opportunities for Waste Heat Recovery from AI Factories with On-Site Power Generation
Alfonso Ortega (Villanova University, USA)

09:10 am - 09:35 am

[Paper] A Modular Digital Twin Framework for Waste Heat Recovery and Workload Orchestration in Data Centres
Henrik Barestrand, Axel Kärnebro, Richa Upadhyay, Jon Summers, Cagatay Yilmaz (RISE Research Institutes of Sweden, SE)

09:35 am – 10:00 am

[Talk] Simulation-Based Analysis of Data Center Waste Heat Reuse Scenarios: Insights from the HEATWISE Project
Ariel Oleksiak (PCSS, PL)

10:00 am – 10:30 am

Coffee

10:30 am - 11:00 am

[Paper] Inter-Data-Center Workload Migration for Grid-Interactive Balancing Services: A Field Demonstration
Ryota Morimoto, Satoshi Kaneko, Yoji Ozawa (Hitachi, JP), Tetsu Moriwake (Hitachi Solutions West Japan, Ltd.), Yuichi Nabetani, Soichiro Kumagai, Takuya Sato (TEPCO Power Grid, Inc.)

11:00 am - 11:30 am

[Paper] Locational Pricing for Generative-AI Services via Token-Flow Market Clearing
Shaohui Liu (MIT, USA)

11:30 am - 12:00 pm

[Paper] Battery-Assisted Ramp Rate Control of AI Data Centers: Change-Point Detection and Optimal Algorithm Design
Nardos Belay Abera, Petr Musilek, Yize Chen et al (University of Alberta, CA)

12:00 pm – 13:00 pm

Lunch

13:00 pm – 13:30 pm

[Talk] How to Achieve 100% Heat Capture on 500kW+ Racks
Milad Samie (CoolIT, CA)

13:30 pm – 14:00 pm

[Talk] Reducing the environmental impact of data center through optimal integration with district thermal network
Sicheng Zhan (MIT, USA)

14:00 pm – 14:30 pm

[Paper] Projecting the Consequences of Climate Change on the Operation of European Data Centers
J. Schiller, Y. Bache, M. Pruckner (University of Würzburg, DE)

14:30 pm – 15:00 pm

Coffee

15:00 pm – 15:30 pm

[Talk] Grid-Aware Optimization and Modeling for Large-Scale Data Centers
Deep Deka (MIT, USA)

15:30 pm – 16:00 pm

[Talk] The unseen AI disruptions for power grids: LLM-induced transients
Yuzhuo Li (University of Alberta, CA)

16:00 pm – 16:30 pm

[Talk] Reflections from the chair of the future technologies symposium of OCP
Jon Summers (RISE, SE)

16:30 pm – 17:00 pm

Final discussion and closing

Workshop Chairs

Ariel Oleksiak


Poznan Supercomputing and Networking Center, Poland

ariel@man.poznan.pl

Jon Summers


RISE Research Institutes of Sweden, Sweden

jon.summers@ri.se

Shaohui Liu


MIT, United States of America

shaohuil@mit.edu

Deepjyoti Deka


MIT, United States of America

deepj87@mit.edu

Technical Programme Committee

Bilge Acun


Meta, United States of America

Boudewijn R. Haverkort


University of Twente, Netherlands

Christian Wasserman


RWTH Aachen University, Germany

George Da Costa


University of Toulouse, France

Gunnar Schomaker


Paderborn University, Germany

Hongyang Sun


University of Kansas, United States of America

Jonas Gustafsson


RISE Research Institutes of Sweden, Sweden

Juan Senga


MIT, United States of America

Line Roald


UW Madison, United States of America

Matthias Maiterth


Nvidia/Ork Ridge National Lab, United States of America

Robert Basmadjian


University Mohammed VI Polytechnic, Morocco

Sid Jana


Intel, United States of America

Sungho Shin


MIT, United States of America

Tejus R


Meta, United States of America

Torsten Wilde


Hewlett Packard Enterprise (HPE), Germany

Tudor Cioara


Technical University Cluj-Napoca, Romania

Vladimir Dvorkin


UMich, United States of America

Xavier Hesselbach-Serra


Universitat Politecnica de Catalunya, Spain

Yize Chen


UAlberta, Canada



Contact

Ariel Oleksiak (ariel at man.poznan.pl)
Jon Summers (jon.summers at ri.se)
Shaohui Liu (shaohuil at mit.edu)
Deepjyoti Deka (deepj87 at mit.edu)