Your SlideShare is downloading. ×
ICS 690 talk: Personal Environmental Trainer
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

ICS 690 talk: Personal Environmental Trainer


Published on

Presentation on PhD proposal ideas presented to University of Hawaii at Manoa ICS 690 seminar.

Presentation on PhD proposal ideas presented to University of Hawaii at Manoa ICS 690 seminar.

Published in: Education, Technology, Business

  • Be the first to comment

  • Be the first to like this

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

No notes for slide


  • 1. The Personal Environmental Trainer Robert S. Brewer Presented to ICS 690 12/4/2008
  • 2. Context
    • My status
      • Working on PhD research portfolio
      • In pre-proposal phase
    • Presentation goals
      • Spur myself to articulate proposal ideas
      • Share those ideas & related work
      • Get feedback
  • 3. The Problem
    • Climate is changing and it’s our fault
      • IPCC report 4
    • Need to reduce GHG emissions
      • Switch to renewable energy sources
      • Many possible sources
    • Reduced energy usage eases burden
      • Increased efficiency
      • Behavior changes
    • IT can play central role
      • Provide awareness of energy usage
      • Support positive behavior changes
  • 4. Core Idea
    • Make energy usage transparent
      • At personal, neighborhood, and state levels
    • Personal Environmental Tracker (PET)
      • Gathers user activity data via sensors
      • Aggregate data in central depot
      • Present data & analyses to user
    • Analyses and UI are the essence of PET
  • 5. PET Background
    • Energy usage feedback -> 10-15% reduction
      • S. Darby 2006 for survey of many studies
    • Carbon calculators provide estimates
      • Broad estimates based on recollection
      • J. Murray & C. Dey 2007 for survey
    • Systems for manually tracking footprint
      • StepGreen , mobGAS
    • Systems for tracking one aspect
      • Ecorio , TED , Dopplr
  • 6. Two Directions
    • Sensors and sensorbase provide the plumbing
    • Two ideas for UI focus
      • 1. Comprehensive carbon dashboard
      • 2. Multi-level electricity feedback display
  • 7. 1: Dashboard Description
    • Comprehensive, sensor-based carbon footprint
      • Track electricity, ground transport, flights
      • Data from physical & informational sensors
    • Integrated display allows rational decisions
      • What areas should be prioritized
    • Support behavior modification
      • No one set of “best” modifications
      • Explore “what-if” scenarios
    • Provide comparisons to other similar people
      • Compare against friends, neighbors, averages
  • 8. Dashboard “Secret Sauce”
    • Footprint based on data from diverse sources
      • Other systems are either broad or use sensors, not both
    • Explore what-if across sources of emissions
      • How many long showers = cross Pacific airline flight
    • Suggestions based on knowledge about user
      • Sensor data can guide recommendations
  • 9. Dashboard Scenario
    • Kimo starts using Dashboard
      • Builds up data about daily activities
    • Kimo feels guilty about taking long showers
      • Electricity usage higher than neighbors
      • Dashboard suggests reducing hot water temp
      • Further option of solar hot water suggested
    • But Kimo likes his showers hot
      • Taking bus once a week = lots of showers
      • Kimo decides to take the bus on Fridays
      • After a few weeks, decides bus isn’t so bad
      • Kimo starts taking the bus every day
  • 10. Building Dashboard
    • Leverage existing infrastructure
      • Sensors: TED, GeoLife or Ecorio, Dopplr
      • Storage: Pachube ,
    • Web app to display data & analyses
      • Full functionality for display & interaction
    • Social applications: Facebook, Twitter, Ning
      • Display updates to self and friends
      • Others can be inspired by your choices
      • Use friends to build comparison list
      • Your commitments are public
  • 11. Evaluating Dashboard
    • Physical sensors can be expensive
      • Provide ways to enter estimates manually
      • Evaluate UI and utility of analysis
    • Pilot study
      • Test initial design, get feedback, eval again
    • Small group of subjects get sensors
      • Elicit baseline data from previous year
      • Equip subjects with sensors
      • Record data & provide consumption feedback
      • Survey subjects on their experiences
      • Track changes in carbon footprint
  • 12. 2: Electricity Feedback
    • Electricity feedback can reduce usage
      • Real-time feedback is best
      • Time-of-use rate awareness also helps
    • Comparison with peers can also help
      • Need to compare apples to apples
      • Don’t want to demotivate low consumers
    • Utilities track generation & consumption
      • Real time in CA during 2000 energy crisis
      • Bad news when demand exceeds supply
  • 13. Electricity Feedback “Secret Sauce”
    • Put them all together
      • Collect personal, community, and utility data
      • Combine together in one UI
    • Does utility data help?
      • Will users reduce load when utility is overloaded?
  • 14. Electricity Feedback Scenario
    • Lani is running the dishwasher
      • Notices the electricity meter shooting up
      • Heat drying dishes uses lots of juice
      • Decides to air dry dishes in the future
    • Lani notices her daytime usage is > neighbors
      • Looks for devices left on while she’s at work
      • Finds fan & air filter have been left on
    • HECO heading into a crisis on hot windless eve
      • Demand is high due to AC usage
      • Renewable energy from wind farm way down
      • Lani decides to open windows & reads a book
  • 15. Building Electricity Feedback
    • Same data plumbing as Dashboard
    • Utility data harder
      • Monthly trend reports available
      • Real-time data requires HECO participation
      • HECO planning time-of-use pricing
    • Ambient display to make users aware
      • LCD display in home? Chumby ?
      • Can provide “glanceable” display on cell phones
  • 16. Evaluating Electricity Feedback
    • HECO participation = high risk
      • Making data available benefits them
      • But if they cannot execute, then give up
    • Recruit small group of subjects
      • Install meters in homes
      • Record baseline usage
      • Install display showing only personal usage
      • Later add utility usage
      • Survey subjects on behavior changes
      • Track changes in electricity usage
  • 17. Common Issues
    • Getting subjects & sensors is a pain
      • But without them, what’s the point?
    • Success shouldn’t lie solely on energy reduction
      • Evaluate UI affordances separately
    • IT also has environmental impact
      • Ensure net reduction in energy
    • Motivating behavior change
      • Many systems provide awareness
      • Need to change awareness to action
  • 18. Mahalo
    • Questions?
    • Comments?
    • Suggestions?
    • Interested in being a future subject? 