Our goal with this project is to speculate on the future of cities, and to celebrate the vitality and diversity of urban spaces, by imagining ways that communities can use the clean-energy transition as an opportunity to enhance what makes them special. The transition will involve messiness, discomfort, and in some cases, dislocation and displacement. Yet it is also a chance to strengthen neighborhoods, foster greater equity and civic engagement, and repair the natural environments and ecosystems that both surround and wind through our cities. In this collection, we aim to provide glimpses into possible configurations of clean-energy infrastructure—along with its concomitant social relations, political structures, and institutions—that embrace the unique circumstances of different cities. We hope to encourage dialogue, debate, and critical thinking about how to navigate urban energy transitions in ways that are culturally responsive and inclusive, and in ways that honor and amplify the beauty and grandeur of cities, as well as their ability to provide places where people can live and thrive and make futures for themselves, their neighbors, and future generations.