Post on 01-Apr-2015
Why Did President Bush Suddenly Start Talking about
Standby Power?
Alan Meier
Lawrence Berkeley National Laboratory
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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
QuickTime™ and aPhoto - JPEG decompressor
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President Bush Saw This Display….
And wrote an Executive Order about standby …
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How Large Is Standby?
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A TOUR OF LEAKING A TOUR OF LEAKING APPLIANCES IN A APPLIANCES IN A TYPICAL US HOMETYPICAL US HOME
All measurements given in watts
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6.5 yrs
(answering machine)
(modem)
7
8
9
10
(baby monitor)
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12
13
14
15
16
17
(CO sensor)
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19
(baby monitor)
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21
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Total Leaking Electricity:
WattsDesktop computer 1.5Monitor 6.9Notebook computer 6.2Cell phone 0.3Compact stereo 3.1Television 6.4VCR 12.0Clock radio 3.2Cordless phone (x3) 8.7CO sensor 1.6Baby monitor (x2) 2.0Modem 7.1Answering machine (x2) 4.6Battery charger (x2) 5.1Radio 0.6Portable vacuum 1.2Microwave oven 3.0Portable heater 0.9
Total Leaking 74.4
% of average household load 8%
74 W
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Our New Neptune Draws 5 W
QuickTime™ and aPhoto - JPEG decompressor
are needed to see this picture. 5 W
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Electric Appliance Stand-byPower(W)
Handy Phone 1.1Heating & Cooling Air Conditioner 1 4.0Heating & Cooling Air Conditioner 2 2.2Heating & Cooling Air Conditioner 3 2.2TV 1.6VCR 5.7Cable Box 6.0Phone 6.6FAX 9.1Audio 11.7Electric Key Board 6.0Oven 10.1Dish Washer 1.0Rice Cooker 1.7Water Cleaner 3.3Boiler for Hot Water Supply 8.0Washing Machine 1.6Personal Computer 2.5CRT 5.2Printer 5.4Speaker 5.3ISDN Terminal Adapter & DSU 6.2Shower Toilet 7.5Lighting Occupancy Sensor(4 units) 1.1 eachTotal 118.4Total (Plug In Always) 80.4
Plug In Always
80.4W
Tokyo 80W
StudyComputer 2.2Printer 5.0
Kitchen
Clock Radio 1.8Portable phone 3.1Stoves (hardwired) 4.6Dishwasher 2.6Microwave 3.4Fridge/Freezer 5.8
Hallway Door bell transformer 1.6
Family Room
TV 4.7Video 5.3Cable TV box 15.2Stereo 27.5Security system 21.5Play Station (game) 1.0
Laundry Washing Machine 5.5Dryer 2.2
Bedroom 2 Electronic timeclock 0.8Bedroom 4 Clock Radio 1.3Central Heating Condensing boiler 10.3
TOTAL STANDBY (Watts) 125.4
New Zealand 125 W
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WattsAlarm Clock # 1 2Alarm Clock # 2 2Amplifier 2CD player 3Record player 1Garage door opener 3Casette deck 2Microwave oven 3Minitel 7Cordless phone 2Radio/CD/K7 #1 2Radio/CD/K7 #2 2Radio/casette 1 1Telephone & Fax 10TV #2 3TV #1 12Dustbuster 2VCR 11
Total 70kWh/an 600
Paris 70 W
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How Large Is Standby?
• 5% of residential electricity (~50W)– 20 appliances/home– TVs and VCRs down, but number up– No estimates for commercial & industrial
• Similar levels in other Europe, Japan– Urban Chinese homes: ~30W already!
• ~1% of global CO2 emissions
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Reducing Standby Power
3 examples…
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Case Study: Internet Appliance
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Internet Appliance Savings
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Satellite/Internet/DVR Box
MicroprocessorPower Supply
“OFF” - 17 Watts ON - 21 Watts
Thermographs of
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The 2002 Calypso Washer. It’s bigger, better…
and it uses 1/10 the standby power of Neptune.
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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