What We Do

The International Institute of Energy Systems Integration (iiESI) is engaging in a variety of activities to chart the course for energy systems integration (ESI) research around the world.

ESI practitioners take a holistic view of the energy systems we use today—focusing on the combined strength of our electricity, heat, and fuels systems. Tapping into the combined strength of energy systems maximizes the value of every unit of energy we use in our water, power, and transportation infrastructures. Through collaboration and coordination, iiESI addresses the technical challenges associated with integrating multiple energy systems to enable clean, reliable, affordable energy systems worldwide.

iiESI resources and events are globally sourced from the world's leading ESI institutions, so all of our activities include the latest findings in ESI research.

This year, iiESI will:

  • Establish the first global ESI-focused conference
  • Create member-developed massive open online courses (MOOCs) and course content—taught by the world's top professors on ESI subjects
  • Create joint member publications on ESI topics
  • Hold regional workshops to address regional ESI challenges
  • Facilitate student/staff exchanges between member organizations.

Become a Member

Members Create ESI Resources for the Global Community

Regional Workshops

Past Workshops


Bi-Annual Global ESI Conference

ESI Global Conference
December 5-6, 2017
More information to come


Educational Courses

Fall 2017: Online ESI course taught by the world's top professors on ESI subjects

Past Educational Courses


ESI Articles and Papers

Energy Systems Integration: Defining and Describing the Value Proposition, iiESI White Paper (June 2016)

Coming Soon:
Strategic Energy Technologies Information System (SETIS) Magazine (October 2017)

Past Articles and Papers


Student and Staff Exchanges

Contact iiesi@nrel.gov for more information


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