The gap between the UK’s emissions-reduction targets and its delivery policies creates a vast and largely unexplored space for entrepreneurship and business growth. Reaching zero emissions within one generation depends on electrification, but we won’t have as much non-emitting electricity as we’d like. Without action, this means national energy poverty - but with foresight, now entrepreneurs can profit from the businesses that will give us great lives with less energy. This report reveals the breadth of this untapped opportunity for entrepreneurs.