Samsung Televisions Technology Scope for Energy Efficiency, Set top boxes, In-use W 12 23 17 15

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MEPS − Televisions

April 2005

(e) Set top boxes

Figures for US set top box power usage were given in Rainer et al 2004.12

Table 7: Average Set Top Box Power Levels

Type

Standby (W)

Analogue cable

10

Digital cable

22

Satellite

16

Internet Protocol TV

14

Digital TV adaptor

8

In-use (W) 12 23 17 15 17

They say that “Reducing the energy use of set-top boxes is complicated by their multiple complex operating and communication modes. Although improvements in power supply design and efficiency will be effective in reducing STB energy use, the major energy savings will be obtained through the use of protocols and software to better control the device (energy management).”

Summary − TV energy consumption

Overall television energy consumption is around 320 GWh, and could reduce over the next 5-7 years by 20% if a MEPS regime is introduced. Although there is considerable variation between manufacturers, energy consumption of various TV types is likely to continue to fall as technology improves.

5 Technology Scope for Energy Efficiency

A 1998 report by Huenges and Siderius13 stated that TV in-use energy consumption can be reduced through two options:

•Options regarding components: o Use less

o Use more efficient

o Use specifically designed components

•Options regarding design (hardware and software) o Lower voltages

o Fewer voltages

o Power management

At that time the data showed a trend to decreasing power consumption only for smaller TVs (below 49cm). For medium and larger sizes there was still a large variation. Because of their short life times and high ownership growth rates, STBs perhaps also provide a great opportunity for significant short term energy savings.

12“What's On the TV: Trends in U.S. Set-Top Box Energy Use, Design, and Regulation” Rainer L, Thorne Amann J., Hershberg C., Meier A., Nordman B, IEA Conference paper URL − http://www.iea.org/dbtw-wpd/textbase/papers/2004/am_stb.pdf

13Huenges Wajer B.P.F., Siderius P.J.S., Analysis of Energy Consumption and Efficiency Potential for TVs in on-mode, EC report November 1998 http://www.vhknet.com/download/TV_on-mode_final_report.pdf

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A study produced for the Energy Efficiency and Conservation Authority by

Wise Analysis Ltd

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Contents Meps − Televisions Preface Televisions Contents List of Figures Recommended Policy Options for New ZealandGlossary Executive Summary Meps − Televisions Introduction Principal exports General comparison between New Zealand and Australia AreaPopulation Per capita GDPTelevision Receiver Types AnalogueStandard-Definition TV Sdtv High Definition TV HdtvIi Plasma Screens and TVs Standard Cathode Ray Tube CRTSlimline televisions Liquid Crystal Display LCDAll Television Types Iii Rear ProjectionIv Set top boxes TV FormatsSource Statistics New Zealand, Household Economic Survey TVs Data 2000 %178,603 242,474 290,499 New Zealand annual TV market based on type UnitsWide-screen Televisions Household Energy Consumption Summary − TV demographics494,500 785,600 322 TVs 440Wh/dayBest practice for LCD TVs In-use consumption Watts Standby Trends in TV Power ConsumptionStandard CRT Televisions LCD TelevisionsIn-use W 12 23 17 15 Average Set Top Box Power Levels Type Standby WTechnology Scope for Energy Efficiency Set top boxesVoluntary Programs Mandatory Programs Summary − International Standards and Programs Energy Cost Savings TVs − Savings in CO2 Emissions − BAU and Meps Greenhouse Gas Reduction PotentialPolicy and Program Approaches to Improve Energy Efficiency Minimum Energy Performance Standards Meps Costs of Meps General Policy Recommendations Consultation Summary − Recommended Policy Options for New ZealandImplementation Program Managing Director Gerry CoatesGovernment Agencies Importers/ManufacturersIndustry Bodies
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