540 likes | 845 Views
Greening The Internet of Things: Smart Products & People on the Smart Grid. Alice M. Agogino. What is the Smart Grid?. Begins with the 2003 Northeast Blackout. What is the Smart Grid?. Concept Expanded with the 2007 Energy Independence and Security Act. Electric Utilities BEFORE Smart Grid.
E N D
Greening The Internet of Things: Smart Products & People on the Smart Grid Alice M. Agogino
What is the Smart Grid? Begins with the 2003 Northeast Blackout
What is the Smart Grid? Concept Expanded with the 2007 Energy Independence and Security Act
Electric Utilities BEFORE Smart Grid • Energy flows one way to customers • Simple interactions and little information flows Joe Hughes, EPRI, NIST Standards Workshop, April 28, 2008
Electric Utilities WITH Smart Grid • Energy and information flows to, from & between customers • Multi-stakeholder interactions Joe Hughes, EPRI, NIST Standards Workshop, April 28, 2008
Data-Centric View of the Smart Grid • Smart Sensors and Meters • Smart Devices • Computers, printers, appliances, thermal systems, lights, security systems, health monitoring, entertainment • Distributed Energy Generation • Wind, solar panels, micro-hydro, geothermal • Huge Amount of Data Collected, Validated, Corrected, Analyzed, etc. • Data Rates Could be Hourly or Less
Energy Generation & Storage View of the Smart Grid Joe Hughes, EPRI, NIST Standards Workshop, April 28, 2008
Hourly Day-Ahead Power Price July 2011 in North East U.S. Energy Information Administration (EIA)
Wind Energy in Denmark Wind power covers the entire demand for electricity in 200 hours (West Denmark) 2008 Future wind power will exceed demand in more than 1,000 hours Eco-Grid EU – Developing the Prototype of the European Smart Grid, Qiuwei Wu, DTU, CITIRS Workshop, June 23, 2011
How Do We Store Energy? Data from Ali Nourai, Electricity Storage Association
GM Announces Real-World Smart-Grid EV Pilot http://reviews.cnet.com/8301-13746_7-20081126-48/gm-announces-real-world-smart-grid-ev-pilot/
Customer-Centric View Pacific Gas & Electric Example • Save Energy • Increased Quality • Convenient • Feel Safe • Peace of Mind http://www.pge.com/smartmeter/customerstories/anja.shtml
Smart Homes, Offices, Cities ZigBeeAlliance
Cows in the Clouds http://www.youtube.com/watch?v=mf7HxU0ZR_Q
http://www.couchsurfingori.com/blog/a-couchsurers-view-on-stuff-worldly-posessions/http://www.couchsurfingori.com/blog/a-couchsurers-view-on-stuff-worldly-posessions/
http://thetechnologicalcitizen.com/?p=2979 http://www.msnbc.msn.com/id/27668152/
Chris Jordan Photographs: Cell Phones Intolerable Beauty: Portraits of American Mass Consumption
Chris Jordan Photographs: Cell Phones Chargers Intolerable Beauty: Portraits of American Mass Consumption
Chris Jordan Photographs: Junk Intolerable Beauty: Portraits of American Mass Consumption
Chris Jordan Photographs: Cars Intolerable Beauty: Portraits of American Mass Consumption
Chris Jordan Photographs: Circuit Boards Intolerable Beauty: Portraits of American Mass Consumption
Chris Jordan Photographs: More Circuit Boards Intolerable Beauty: Portraits of American Mass Consumption
Apple Wants to Kill DVDs http://www.fastcompany.com/1768178/apple-thinks-the-dvd-is-dead
Products have shorter lives, yet product offerings are up * Data collected by Dr. Mark Martin for consumer electronics device
What Defines a Good Sustainable Product? • It’s sustainable over the product life cycle • It gets used • It satisfies people’s needs and wants and increases the quality of their lives • It doesn’t stand alone but is part of an infrastructure • It meshes with the culture
Sustainable Over Product Life Cycle Inputs Materials Energy Water Outputs Materials/ Products Solid Waste Airborne Emissions Waterborne Emissions
Sustainable Products Social Needs Human-centered design Uneconomical design Sustainable design Economic Needs Environmental Needs Unadopted designs http://sustainable-engineering.berkeley.edu/
Why Smart Lighting? • Lighting accounts for 30% energy use in office buildings
Smart Lighting • Potential for lighting management • Energy savings • Up to 25-60% potential savings with energy efficient lighting management technologies • Personal lighting preference & satisfaction • Lighting satisfaction correlates to productivity • Diverse among individuals • Varies with tasks and ages • Market for lighting annually • $12 billion (US) • $ 40 billion (worldwide)
New York Times Building • 70% Reduction in Lighting • 30% Daylight Harvesting • 10% Occupancy Sensing • 2% Scheduling • 58% Light Level Tuning • >$300K Savings Per Year
Why Retrofit Systems Are Not Adopted or Used? • Exorbitant retrofitting/rewiring cost • Designed only for energy savings – no Human-Centered Design • No accommodation for occupants’ preferences • Lamps wired together can only be controlled identically • Impossible to deliver personalized lighting in open space offices
Sustainable Smart Solution • Personalized settings using wireless micro platform • Minimal retrofitting • Extensible to load shedding building technologies • 17-344 environmental improvement
Successful Proof of Concept 50% energy savings in pilot implementation Over 70% savings with simulated daylight harvesting
High User Satisfaction • Personalized & optimized lighting • Energy efficiency • Ease of adoption “Before this system, I wasted a lot of energy when I was in the office alone. Now when I come into the office, I can adjust the lights to meet my needs while reducing energy consumption at the same time.” – Ryan Shelby
AI Behind the Scenes • Influence-Diagrams / Bayes’ Nets • Human-Centered Design • Smart Sensor Platforms • Mote-FVF: Fuzzy Validation and Fusion • Mote-Based Actuation • Optimization and Agents
Distributed Architecture • Global Level • Date/Time • Policy Decisions • Regional Level • Regional Decision • Light Actuation • Local Level • Sensor Validation • Sensor Fusion • Personalized Lighting Control
Preference Identification: Occupants P(Pi| Ti, Ei) ANOVA for significance of testing results Eprefi Preferred illuminance for each task is midpoint of ‘ideal’ range (used in value function)
Preference Testing - Results • No illuminance range proved to be ideal for all four occupants, even though all share the same switch (computer histogram)
Personalization & Control with Micro Sensor Platforms • Capabilities • Wireless communication • Computation • Sensing/actuation • Data logging • Features • Miniature size • Self-powered • Inexpensive • Network ready Intelligent decision making Mote actuation Office lighting Sensor validation and fusion Mote sensing
Measured illuminance Optimized lighting User preferred preference Optimized Lighting 47 • Scenario 2 • 7 present occupants • Preferences are conflicting, balanced • Uses only ~50% of energy • Scenario 1 • 4 present occupants • Preferences can be met perfectly • Uses only ~30% of energy
Other Extensions • Energy benefit • $9 billion savings for commercial buildings world-wide per year • Easily adaptable to other lighting technologies • Non-energy benefit • Increased worker productivity • Improve environmental impact of lighting • Mood lighting
Future Research • Scaling to Larger Open Space Offices • Add Daylighting & Window Control • Integrate with Heating & Cooling
Dual Implementation Sites NASA Ames Green Building Sustainability Base CITRIS (Center for Information Technology in the Interest of Society) Berkeley