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SDB Retreat Panel Session: Scalability Across the Building Stock

SDB Retreat Panel Session: Scalability Across the Building Stock. Randy Katz, Moderator Arka Bhattacharya Kaifei Chen Stephen Dawson-Haggerty. What is Scalability?.

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SDB Retreat Panel Session: Scalability Across the Building Stock

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  1. SDB Retreat Panel Session:Scalability Across the Building Stock Randy Katz, Moderator Arka Bhattacharya KaifeiChen Stephen Dawson-Haggerty

  2. What is Scalability? • “… ability of a system to handle a growing amount of work in a capable manner or its ability to be enlarged to accommodate that growth.” • “An algorithm scales if it is suitably efficient and practical when applied to large situations.” • If modeling the SECOND building is less work than modeling the first From wikipedia “Scalability” http://en.wikipedia.org/wiki/Scalability

  3. Smart Buildings: How to Achieve Scale? • Individual building deployments are Herculean efforts • Floorplans • Embedded system descriptions (lighting, HVAC, etc.) • Access to digital representations? • Scale to millions of structures and 100s million of people? • Automate the exploitation of existing information sources!

  4. U.S. Building Stock • Residential Buildings • 128 million residential housing units in U.S. (2007); 7.188 million new housing units built 2009 – 2009 • Commercial Buildings • 4.9 million office buildings in the U.S. (2003); 170,000 commercial buildings constructed and 44,000 commercial buildings demolished per year (1995)

  5. Residential EnergyConsumption Survey • 113.6 million occupied housing units in USA in 2009 • About 19,000 were selected for interviews • Only about 15,300 were occupied primary residences and eligible • About 12,100 responded to the survey, a response rate of about 79%

  6. Alternative Idea: Google Earth • Crowd sourcing: Harness volunteer efforts to create Google SketchUp 3D building models

  7. SketchUp3DWarehouse

  8. From Street Views to …Inside Views

  9. Google Floor Plans

  10. From Street Views to … Inside Views

  11. Not Just Google …

  12. Conclusions • The Challenge: Achieving Scale • Exploit crowd-sourcing • User generated 3D models and floor plans • Exemplar buildings and automated model building • Exploit alternative information sources • Satellite and street-view photos • Digitized floor plans • Real-estate databases • Making the information actionable: energy and other analytics • Liveability, Walkability, Transport Scoring • Localization/Indoor Mapping • Other social analytics

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