Energy is everywhere. We take for granted that it will be available when we want to heat our homes, cook, use our computers, mobile phones, escalators, cranes, X-ray machines, buses, trains, planes and cars. It is an integral, often invisible – and unfortunately rather unsustainable part of our lives. In this book, some of Sweden’s leading energy researchers share their views on familiar and less familiar challenges and solutions related to the energy system of the future. The purpose of the anthology is to stimulate conversation and constructive debate so that we can address the challenges in open dialogue and ensure that our future is shaped by facts and knowledge. The anthology is co-created through workshops and training in science communication organised jointly by KTH and VA.