In the 19th century, many new equivalences became embedded in the landscape among heat, mechanical force, muscle power, electricity, magnetism and so forth. At the same time, other relations also spread across some of the same spaces: wage labour relations, cotton slavery, new flows of waste and waste work and so on. These relations represent the hierarchies coded in thermodynamic or abstract energy. They are key to understanding today's energy as white, colonialist and patriarchal.