Monash University (Australia) research exploring the mundane, tacit and corporeal forms of practical knowledge householders draw on to understand energy consumption and generation, and in particular the role of sensory feedback––what people can see, hear, touch, or otherwise sense. The research draws on five weeks of ethnographic fieldwork undertaken on the Isle of Eigg where a microgrid deriving roughly 90 percent of its electricity from renewable sources is found. Between January and February 2017, the main researcher lived in an island household and conducted twenty interviews involving 25 locals from nineteen island households (almost one quarter of the island’s population). The analysis finds that islanders draw on heat- and weather-based forms of sensory feedback that help them to understand domestic energy consumption, and renewable generation, respectively. Meanwhile, energy monitors find limited utility, with conventional energy feedback used largely to formalise and supplement practical forms of knowledge developed through islanders’ bodily engagement with the environment, and lived experience.