This use case describes direct load control event. There are three scenarios described in this use case.
Scenario #1 details a Demand Response (DR) event using a meter centric approach (DR via AMI No EMS).
Scenario #2 details a DR event using an EMS centric approach with the AMI System (DR signals travel through the Smart Meter to the EMS and back through the Smart Meter).
Scenario #3 details a DR Event using an EMS centric approach with Internet Gateway (DR signals travel from the DR Application through the internet, to the internet gateway, to the EMS. The Information travels from the devices to the EMS, to the internet Gateway, through the internet, back to the DR Application.)