Just In Time Carbon Footprint

Just In Time Carbon Footprint Manu Gupta, Stephen Intille and Kent Larson MIT Media Lab, House_n

[email protected] [email protected] [email protected]

Carbon Footprint Measurement & calculation of CO2 emitted as part of daily life activities Why measure

Conserve energy Allow people to be aware of their emission Help people change usage patterns Its our responsibility

Our Focus Behavior change

Measuring and motivating energy conservation behavior at the personal level PlaceLab- A Live-In Laboratory

Data Collection Only electric current information 37 different electrical circuits fitted with current sensors

Circuits are divided into residential spaces and residential appliances PlaceLab- A Live-In Laboratory

Data Analysis A Couple lived in the PlaceLab for 10 weeks One day analysis Annotation

Video analysis of usage, movement and behavior patterns Current analysis Of each individual appliance/devices energy consumption

Analysis Tool Handlense sensor visualization tool Vampire power sources Developed at House_n

Unused lights & Devices Projected Usage

Space in use Devices in use

Results Total electricity consumed in 1 day = 13.45 KWh With an optimal change in behavior

(but without impacting quality of life) They would have saved ~ 38% (5KWh) of the total electricity consumed

Behavior Change Strategies To motivate energy conservation behavior two strategies can be used Responsive Automation*

Just in Time Intervention* *Current research is on designing these strategies and testing how much energy can be saved using them.

Behavioral Change Interfaces Exploring the use of phones for just-in-time positive

reinforcement. Key idea: positive reinforcement tied to small behavior changes (Detected by sensing)

May lead to gradual behavior change. System Components

Sensor Network Control and Actuation system Mobile Devices Intervention strategies

System Characteristics Low power Wireless

Affordable Real Time interaction with mobile devices Non intrusive Right mix of automation and intervention

Thanks

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