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We joined the Energy Systems Integration Group

We're excited to have joined with the Energy Systems Integration Group (ESIG) and continue to provide leadership and research expertise in tackling today’s biggest global energy challenges. See what we’ve been up to at ESIG by following the Research and Education Working Group tab at

Past Events

Find presentations and summaries from past iiESI workshops.

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Resource Library

Access educational publications and course materials.

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What Is Energy Systems Integration?

Energy systems integration (ESI) takes 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.

Download Our ESI Definition Paper