Robin Hood: one of Britain’s best-loved folk heroes. He speaks to our national love of subverting the rules. Fighting against institutional injustice, he protected the most vulnerable from the predatory practices of a corrupt establishment. Nottingham city council’s new not-for-profit energy supply company, Robin Hood Energy, is not only the first of its kind, but the perfect contemporary manifestation of this spirit of righteous derring-do. Unfortunately, the government …