Renewable energy: Page 96 & page 97
Community Energy projects https://communityenergyengland.org/
An international perspective: The International Renewable Energy Agency https://www.irena.org/
Ethical Consumer Magazine has a guide to choosing between green tariffs, as well as brand ratings for lighting, heat pumps & solar panels: https://www.ethicalconsumer.org/energy
Quality assurance in the renewable energy field http://www.renewableenergyassurance.org.uk/about