Cittadinanzattiva's guide on “Energy communities and purchasing groups: How to make citizens protagonists in the energy market” aims to be a practical support for citizens who wants to know and undertake a path of change towards an alternative and more active approach to the world of energy. The guide explains what energy communities and purchasing groups are and provides a comprehensive glossary on the energy market to clarify concepts such as enhanced protection market, free market, hourly zone price and smart homes.