Who We Are


The International Institute for Energy Systems Integration (iiESI) served as a global membership-based organization of leading researchers, educators, and practitioners addressing the technical challenges associated with the integration of multiple energy systems.

Members' core competencies represented multiple engineering and scientific disciplines associated with the energy infrastructure.


Through knowledge capture, management, and transfer, iiESI ensured that investments in ESI research and development (R&D) and education were coordinated and optimized to yield the greatest value possible to the global community.


iiESI was a global community of scholars and practitioners from leading institutions coordinating efforts in ESI R&D and education to enable highly integrated, flexible, clean, and efficient energy systems.


EPRI's collaborative, power grid research, development, and demonstration projects address specific, near-term opportunities and long-range strategic challenges. EPRI's research can help mitigate risks and contribute substantially to keeping electricity safe, reliable, efficient, affordable, and environmentally responsible.
For nearly a century, GE's Energy Consulting experts have focused on solving the electric power industry's most pressing challenges—driving the evolution of electric power systems with greater affordability, reliability, and efficiency. Today, GE's Energy Consulting team continues this tradition by providing innovative solutions across the entire spectrum of power generation, delivery, and utilization. With its cross-company resources, GE's Energy Consulting business is able to serve a diverse global client base with a strong local presence.

Imperial College London

The Karlsruhe Institute of Technology (KIT) was established by the merger of the Forschungszentrum Karlsruhe GmbH and the Universität Karlsruhe (TH) on October 01, 2009. KIT combines the tasks of a university of the state of Baden-Württemberg with those of a research center of the Helmholtz Association in the areas of research, teaching, and innovation. KIT has developed to a modern location of research and education in natural sciences, engineering, economics, social sciences, and the humanities.
KIER is a research institute that strives to positively impact the quality of life for people while improving national wealth—all through their support of national energy policy in terms of technology development. The institute's R&D efforts will lead to technology transfer that can be reflected in successful commercialization.
Situated in Belgium, in the heart of Western Europe, KU Leuven has been a center of learning for nearly six centuries. Today, it is Belgium's largest university and, founded in 1425, one of the oldest and most renowned universities in Europe. As a leading European research university and co-founder of the League of European Research Universities (LERU), KU Leuven offers a wide variety of international master's programs, all supported by high-quality, innovative, interdisciplinary research. In 2016, KU Leuven leads the Reuters Top 100 ranking of Europe's most innovative universities.
NREL advances the science and engineering of energy efficiency, sustainable transportation, and renewable power technologies by providing the knowledge to integrate and optimize energy systems. The Energy Systems Integration Facility, located at NREL, is a U.S. Department of Energy user facility available to the global research community.
The Energy Research Institute @ NTU envisions to be a leading research institute for innovative energy solutions. It distinguishes itself through excellence in basic research, with focus on systems-level research for tropical megacities, integrating research across the university as a whole in the context of the energy challenge, and helping to translate outcomes into industry and practice.
DTU is ranked as one of the top technical universities in Europe. It continues to set new records in number of publications and persistently increases partnerships with industry. DTU researches all areas of energy systems—from production and transport to storage and consumption, placing an emphasis on sustainable energy forms and their integration, which includes a focus on big data analytics, cloud computing, IoT, energy informatics, modeling, forecasting, and control. In October 2015, Reuters ranked DTU first in the Nordic region and seventh in Europe on their list of the Top 100 World's Most Innovative Universities.

University College Dublin

Photo of Mark O'Malley

iiESI Leadership

Mark O'Malley
Former iiESI Director