U.S. Department of Energy - Energy Efficiency and Renewable Energy
Building Technologies Office
Context-Aware Smart Home Energy Manager Research Project
The U.S. Department of Energy (DOE) is currently conducting research into a context-aware smart home energy manager (CASHEM).
This project seeks to develop a CASHEM system able to identify the contexts that affect operation of home appliances, configure a context-driven appliance convenience of service model that correlates the different conditions to the energy consumption, and dynamically schedule the appliances under the stated conditions. The CASHEM will monitor inputs from multiple sources including:
- Occupancy sensors
- Indications from the security system
- Position of light switches
- Hot water consumption
- Appliance activity (e.g., the operation of the dishwasher)
- Time of day to create a hypothesis of the current state and to build patterns.
Research is being undertaken by DOE, Honeywell International, Inc., Honeywell Automation and Control Solutions, Whirlpool Corporation, Pentair, Inc., and the Pacific Northwest National Laboratory.
The goal of this project is to create a system that dynamically schedules major home appliances according to conditions and homeowner convenience of service preferences, monitors and analyzes energy consumption, recommends further energy saving actions, and engages or motivates the homeowner to adopt those recommendations.
Benefits and Impacts
By automating energy saving actions in combination with adaptive techniques while focusing on large energy consuming appliances—such as space conditioning, water heaters, and pools—savings between 16% and 20 % of energy consumed based on the homeowner and "comfort" tolerance are expected.