際際滷

際際滷Share a Scribd company logo

Realizing Energy Savings From Lower Power T Vs 9 2 09

P
philwright8800

Phillip Wright and Jonathan Livingston presented on realizing energy savings from lower power televisions. They noted that televisions currently consume over 50 billion kWh annually in the US, accounting for 4% of household electricity use. While television power consumption and screen sizes have increased over time, new technology and features have the potential to significantly reduce energy use if widely adopted. They proposed developing a "television energy savings roadmap" to chart the course and quantify achievable savings through technology improvements, consumer-focused features, partnerships, policies, and programs.

1 of 15
Download to read offline
Realizing Energy Savings from Lower Power Televisions Phillip Wright, Ph.D. Managing Director, WRT Associates, LLC philwright@wrtassoc.com www.wrtassoc.com +1-970-219-8800 September 2, 2009
Acknowledgement I would like to acknowledge my colleague Jonathan Livingston of Livingston Energy Innovations as the co- author of this presentation and our upcoming white paper of the same title. Jonathan Livingston President, Livingston Energy Innovations, LLC Web: www.Livingston-ei.com Email: Jonathan@Livingston-ei.com 2 September 2, 2009
Outline Potential for energy savings from televisions Where are we today? Trends in television technology and power consumption Where are we going and how we will get there? Television Roadmap mapping the territory Putting it all together and realizing energy savings from televisions 3 September 2, 2009
Why Energy Savings from Televisions? Energy Star points out there are 275 million TVs in U.S. consuming >50 billion kWh (TWh) of energy each year 4 % of all household electricity use Enough to power all the homes in New York state for a year Consumers have/are upgrading their sets to digital and the long term trend has been to more and larger screens Substantial opportunity for energy savings from lower power televisions with energy saving features 4 September 2, 2009
Why Energy Savings from Televisions? Energy Star points out there are 275 million TVs in U.S. consuming >50 billion kWh (TWh) of energy each year 4 % of all household electricity use Enough to power all the homes in New York state for a year Consumers have/are upgrading their sets to digital and the long term trend has been to more and larger screens However, realizing energy savings from televisions will require changes 5 September 2, 2009
Where are we today? Current television stock, replacement, growth rate Technical characteristics of current television stock that result in excess energy consumption Consumer behavior is a key element Television power consumption trend down for many new models Energy Star 3.0 in place today IEC 62087 now defines how to measure on mode power consumption Energy Star 4.0 and 5.0 under development Television power consumption is measurable and steps are being taken to rein in TV energy consumption 6 September 2, 2009
How do TVs fit in the CE big picture? Source: CEA, 2007 Digital television is largest home CE energy consumer Consumer electronics consumed 163 TWh of electricity in US homes in 2006 - 12% of US residential electricity Active mode energy consumption of all CE dominates but off mode also significant 7 September 2, 2009
Todays TV Ecosystem Televisions are one of the largest consumers of electricity in the American home Source: NRDC and Ecos Consulting, 2005 Typical Energy Star rated refrigerators have an annual energy use of about 400-500 kWhr 8 September 2, 2009
Energy Saving Television Trends Average television set power consumption per in2 has peaked new LCD and Plasma sets have lower power per in2 Technical Improvements Improved optical films and LCD transmission Improved backlighting, especially LED BLUs Higher luminance plasma TVs Features - enable significant energy savings IF features become widespread AND are used effectively by consumers Video mode Vivid, movie, sports, game, energy saving, Video mode optimization Ambient light sensors Presence detectors Picture off mode (Video mute, Radio mode, ) Long term sales trend is larger numbers of larger screen sets Technical specs are improving, features need to encourage energy conserving user behavior 9 September 2, 2009
Where are we going, how will we get there? Need a television energy savings roadmap To chart the course and quantify achievable energy savings Alternatives for energy savings Technical approaches Behavioral (consumer actuated) approaches Win-win policy approaches Identify energy saving technical approaches, features, policies, introduction and availability Time span from 2012-2020 Television energy savings roadmap will chart the course and quantify achievable energy savings 10 September 2, 2009
One More Thing - Screen Convergence Display usage for work and entertainment per individual is ~75 hours with other household members watching secondary displays for similar periods Increasingly information and entertainment is being delivered over internet to individuals at their computers New applications including energy, health and security monitoring, and more will drive further display usage Display usage will grow sharply more screens, larger screens, more screens operating simultaneously Screen Convergence could drive increased energy consumption and is another compelling argument for: Realizing Energy Savings from Lower Power Televisions 11 September 2, 2009
Strawman Television Energy Savings Roadmap Direction 2009 2012 2016 2020 Set Technology 0.45 W /sq inch 0.4 W /sq inch 0.3 W /sq inch 0.28 W /sq inch ? LCDs Limited availability - penetration 40% 65% 80% 95% LED Backlight 0.5 W /sq inch 0.45 W /sq inch 0.35 W /sq inch 0.29 W /sq inch ? Plasma 2.5 Lm/W 5.0 Lm/W 7.5 Lm/W 10 Lm/W ? Luminous eff. AMOLED 11 15 27 40 50 ? ? 0.5 W /sq inch 0.3 W /sq inch 0.2W /sq inch 0.1 W /sq inch ? Energy Conserving Features Video mode opt. Limited availability - penetration 40% 50% 80% 95% Ambient light sense Limited availability - penetration 50% 80% 95% 100% User sense Limited availability - penetration 20% 30% 40% 75% Picture off Limited availability - penetration 5% 15% 35% 55% Power Management Limited availability - penetration 85% 90% 95% 100% Energy Consuming Features Connectivity wired Penetration/power 40%/10W 60%/7W 80%/4W 95%/4W 65%/4W wireless Limited availability penetration/pwr 40%/12W 80%/9W 95%/4W 97%/2W Convergence Operating hours/year 1850h 2200h 3100h 3300h ? Impacts? Increased or decreased energy consumption ? Increased unit sales, ASPs ? Figures of Merit? Number of screens/home, tot screen area per household ? Operating hours x Screen Area x Power/Area ? Policy Voluntary programs Energy Star 4.0 Energy Star 5.0 TopTen USA Standards IEC IEC next gen? Regulation? Initial municipal and state regulations National regulation? Subsidy Programs Utility rebate pilots Statewide and regional rebate programs National rebate program? Slanted Font: Major industry efforts are required for commercialization Technology & Features: Commercial Availability in Year Indicated Preliminary 12 September 2, 2009
Realizing Energy Savings - Summary Lower power per in2 TVs good but not sufficient Features that encourage consumers to reduce their energy consumption Need to develop the television energy savings roadmap Technology Features Partnerships Policy Utility and government funding programs Screen Convergence We welcome your input and participation in this effort 13 September 2, 2009
Thank You! Realizing Energy Savings from Lower Power Televisions Phillip Wright, Ph.D. Jonathan Livingston Managing Director, WRT Associates, LLC President, Livingston Energy Innovations, LLC Web: www.wrtassoc.com Web: www.Livingston-ei.com Email: philwright@wrtassoc.com Email: Jonathan@Livingston-ei.com +1-970-219-8800 +1-415-383-7480 14 September 2, 2009
Energy Consumption of Consumer Electronics in US Consumer electronics consumed 163 TWh of electricity in US homes in 2006 Consumer electronics consumed 12% of US residential electricity Source: CEA, 2007 Televisions accounted for 42% or 69 TWh of the total September 2, 2009

More Related Content

Realizing Energy Savings From Lower Power T Vs 9 2 09

  • 1. Realizing Energy Savings from Lower Power Televisions Phillip Wright, Ph.D. Managing Director, WRT Associates, LLC philwright@wrtassoc.com www.wrtassoc.com +1-970-219-8800 September 2, 2009
  • 2. Acknowledgement I would like to acknowledge my colleague Jonathan Livingston of Livingston Energy Innovations as the co- author of this presentation and our upcoming white paper of the same title. Jonathan Livingston President, Livingston Energy Innovations, LLC Web: www.Livingston-ei.com Email: Jonathan@Livingston-ei.com 2 September 2, 2009
  • 3. Outline Potential for energy savings from televisions Where are we today? Trends in television technology and power consumption Where are we going and how we will get there? Television Roadmap mapping the territory Putting it all together and realizing energy savings from televisions 3 September 2, 2009
  • 4. Why Energy Savings from Televisions? Energy Star points out there are 275 million TVs in U.S. consuming >50 billion kWh (TWh) of energy each year 4 % of all household electricity use Enough to power all the homes in New York state for a year Consumers have/are upgrading their sets to digital and the long term trend has been to more and larger screens Substantial opportunity for energy savings from lower power televisions with energy saving features 4 September 2, 2009
  • 5. Why Energy Savings from Televisions? Energy Star points out there are 275 million TVs in U.S. consuming >50 billion kWh (TWh) of energy each year 4 % of all household electricity use Enough to power all the homes in New York state for a year Consumers have/are upgrading their sets to digital and the long term trend has been to more and larger screens However, realizing energy savings from televisions will require changes 5 September 2, 2009
  • 6. Where are we today? Current television stock, replacement, growth rate Technical characteristics of current television stock that result in excess energy consumption Consumer behavior is a key element Television power consumption trend down for many new models Energy Star 3.0 in place today IEC 62087 now defines how to measure on mode power consumption Energy Star 4.0 and 5.0 under development Television power consumption is measurable and steps are being taken to rein in TV energy consumption 6 September 2, 2009
  • 7. How do TVs fit in the CE big picture? Source: CEA, 2007 Digital television is largest home CE energy consumer Consumer electronics consumed 163 TWh of electricity in US homes in 2006 - 12% of US residential electricity Active mode energy consumption of all CE dominates but off mode also significant 7 September 2, 2009
  • 8. Todays TV Ecosystem Televisions are one of the largest consumers of electricity in the American home Source: NRDC and Ecos Consulting, 2005 Typical Energy Star rated refrigerators have an annual energy use of about 400-500 kWhr 8 September 2, 2009
  • 9. Energy Saving Television Trends Average television set power consumption per in2 has peaked new LCD and Plasma sets have lower power per in2 Technical Improvements Improved optical films and LCD transmission Improved backlighting, especially LED BLUs Higher luminance plasma TVs Features - enable significant energy savings IF features become widespread AND are used effectively by consumers Video mode Vivid, movie, sports, game, energy saving, Video mode optimization Ambient light sensors Presence detectors Picture off mode (Video mute, Radio mode, ) Long term sales trend is larger numbers of larger screen sets Technical specs are improving, features need to encourage energy conserving user behavior 9 September 2, 2009
  • 10. Where are we going, how will we get there? Need a television energy savings roadmap To chart the course and quantify achievable energy savings Alternatives for energy savings Technical approaches Behavioral (consumer actuated) approaches Win-win policy approaches Identify energy saving technical approaches, features, policies, introduction and availability Time span from 2012-2020 Television energy savings roadmap will chart the course and quantify achievable energy savings 10 September 2, 2009
  • 11. One More Thing - Screen Convergence Display usage for work and entertainment per individual is ~75 hours with other household members watching secondary displays for similar periods Increasingly information and entertainment is being delivered over internet to individuals at their computers New applications including energy, health and security monitoring, and more will drive further display usage Display usage will grow sharply more screens, larger screens, more screens operating simultaneously Screen Convergence could drive increased energy consumption and is another compelling argument for: Realizing Energy Savings from Lower Power Televisions 11 September 2, 2009
  • 12. Strawman Television Energy Savings Roadmap Direction 2009 2012 2016 2020 Set Technology 0.45 W /sq inch 0.4 W /sq inch 0.3 W /sq inch 0.28 W /sq inch ? LCDs Limited availability - penetration 40% 65% 80% 95% LED Backlight 0.5 W /sq inch 0.45 W /sq inch 0.35 W /sq inch 0.29 W /sq inch ? Plasma 2.5 Lm/W 5.0 Lm/W 7.5 Lm/W 10 Lm/W ? Luminous eff. AMOLED 11 15 27 40 50 ? ? 0.5 W /sq inch 0.3 W /sq inch 0.2W /sq inch 0.1 W /sq inch ? Energy Conserving Features Video mode opt. Limited availability - penetration 40% 50% 80% 95% Ambient light sense Limited availability - penetration 50% 80% 95% 100% User sense Limited availability - penetration 20% 30% 40% 75% Picture off Limited availability - penetration 5% 15% 35% 55% Power Management Limited availability - penetration 85% 90% 95% 100% Energy Consuming Features Connectivity wired Penetration/power 40%/10W 60%/7W 80%/4W 95%/4W 65%/4W wireless Limited availability penetration/pwr 40%/12W 80%/9W 95%/4W 97%/2W Convergence Operating hours/year 1850h 2200h 3100h 3300h ? Impacts? Increased or decreased energy consumption ? Increased unit sales, ASPs ? Figures of Merit? Number of screens/home, tot screen area per household ? Operating hours x Screen Area x Power/Area ? Policy Voluntary programs Energy Star 4.0 Energy Star 5.0 TopTen USA Standards IEC IEC next gen? Regulation? Initial municipal and state regulations National regulation? Subsidy Programs Utility rebate pilots Statewide and regional rebate programs National rebate program? Slanted Font: Major industry efforts are required for commercialization Technology & Features: Commercial Availability in Year Indicated Preliminary 12 September 2, 2009
  • 13. Realizing Energy Savings - Summary Lower power per in2 TVs good but not sufficient Features that encourage consumers to reduce their energy consumption Need to develop the television energy savings roadmap Technology Features Partnerships Policy Utility and government funding programs Screen Convergence We welcome your input and participation in this effort 13 September 2, 2009
  • 14. Thank You! Realizing Energy Savings from Lower Power Televisions Phillip Wright, Ph.D. Jonathan Livingston Managing Director, WRT Associates, LLC President, Livingston Energy Innovations, LLC Web: www.wrtassoc.com Web: www.Livingston-ei.com Email: philwright@wrtassoc.com Email: Jonathan@Livingston-ei.com +1-970-219-8800 +1-415-383-7480 14 September 2, 2009
  • 15. Energy Consumption of Consumer Electronics in US Consumer electronics consumed 163 TWh of electricity in US homes in 2006 Consumer electronics consumed 12% of US residential electricity Source: CEA, 2007 Televisions accounted for 42% or 69 TWh of the total September 2, 2009