Energy Services Companies struggle to convince users to save sustainably energy in their professional environment. Simultaneously, the Internet and social networks let spring up new ways of rating services providers. Indeed, “consumers have more power than ever before to call attention to bad products, services, and experiences”. Thus, app developers or luxury touristic hotels can face good and bad reviews from their customers for the value they bring. What if Energy Services Companies used social media to point their users’ bad or energy-wasting behaviours?