Summary

Recommendation ITU-T F.747.9 describes requirements, scenarios and functional architecture for user-side energy management service (EMS) where energy consumption equipment with heterogeneous metering and control capacities coexist. In user-side EMS systems, energy consumption data for both single device and device group need to be collected; these devices can be controlled by coarse-grained (on-off state) and fine-grained instructions. Furthermore, such operations are executed manually or automatically. The user-side EMS system makes energy-saving decisions based on multiple factors, such as the demands and optimization policies from users, pricing strategies from suppliers, government subsidies, device status.