Energy as a service (EaaS) and energy management as a service (EMaaS) are two different approaches to outsourcing energy needs.  EaaS is a comprehensive approach that encompasses the entire energy supply chain, from generation to consumption. An EaaS provider takes responsibility for procuring, delivering, and managing energy for its clients.  EMaaS focuses specifically on the management and optimization of energy consumption. An EMaaS provider provides expertise and tools to help businesses identify and implement energy-saving measures.