During this session, speakers will provide additional information about energy certificates to D-stream participants who have already learned the basics of issuing and trading Energy Attribute Certificates (EACs). This session will explain who uses these certificates, their motives for doing so, and the significant impact these decisions can have on energy markets. In addition, the experienced presenters of the session will discuss the distinctions between EACs and other environmental tools, such as carbon offsets. That concludes the first day of sessions introducing the fundamentals of Energy Attribute Certificates.