Why Did President Bush Suddenly Start Talking about

Why Did President Bush Suddenly Start Talking about Standby Power? Alan Meier Lawrence Berkeley National Laboratory

Standby Energy Use and Energy Savings Opportunities 1. Why did President Bush get interested in standby power? 2. How large is standby power? 3. Savings opportunities 2

President Bush Saw This Display…. And wrote an Executive Order about standby 3…

How Large Is Standby? 4

A TOUR OF LEAKING APPLIANCES IN A TYPICAL US HOME All measurements given in watts 5

(answering machine) (modem) 6. 5 yrs 6

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(baby monitor) 10

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(CO sensor) 17

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(baby monitor) 19

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Total Leaking Electricity: 74 W 22

Our New Neptune Draws 5 W 5 W 23

80. 4 W Tokyo 80 W 24

New Zealand 125 W Study Computer Printer Clock Radio Portable phone Stoves (hardwired) Kitchen Dishwasher Microwave Fridge/Freezer Hallway Door bell transformer TV Video Family Room Cable TV box Stereo Security system Play Station (game) Laundry Washing Machine Dryer Bedroom 2 Electronic timeclock Bedroom 4 Clock Radio Central Heating Condensing boiler TOTAL STANDBY (Watts) 2. 2 5. 0 1. 8 3. 1 4. 6 2. 6 3. 4 5. 8 1. 6 4. 7 5. 3 15. 2 27. 5 21. 5 1. 0 5. 5 2. 2 0. 8 1. 3 10. 3 125. 4 25

Paris 70 W 26

How Large Is Standby? • 5% of residential electricity (~50 W) – 20 appliances/home – TVs and VCRs down, but number up – No estimates for commercial & industrial • Similar levels in other Europe, Japan – Urban Chinese homes: ~30 W already! • ~1% of global CO 2 emissions 27

Reducing Standby Power 3 examples… 28

Case Study: Internet Appliance 29

Internet Appliance Savings 30

Thermographs of Satellite/Internet/DVR Box “OFF” - 17 Watts Power Supply ON - 21 Watts Microprocessor 31

The 2002 Calypso Washer. It’s bigger, better… and it uses 1/10 the standby power of Neptune. 32

Reducing Standby Power • Components – Low power components (include displays) • Design – Don’t energize unneeded components • Power Supply – Reduce no-load loss – Improve efficiency at low loads – Move switch to high-voltage side 33

End More Information akmeier@lbl. gov http: //standby. lbl. gov