saving energy in the office with it equipment saving energy in your office with it equipment joyce...
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Saving Energy in the Office with IT EquipmentSaving Energy in your Office with IT Equipment
Joyce Dickerson, Director, Sustainable ITDepartment of Sustainability and Energy Management
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THE BIG PICTURE: IT & CO2 EMISSIONS
• IT Industry Energy Usage– Datacenters use 3% of the total energy used in the US, and office
computing is another 1% (DOE/LBNL/Energy Star)
– IT Industry’s CO2 footprint is equivalent to that of the Aviation Industry (Gartner)
– Emissions growth from IT is the fastest of any sector, especially in data-intensive disciplines
– Office equipment accounts for 26% of the energy used in office buildings (State of CA)
• Lighting = 22%• Chilled Water Subsystem = 28%
– Energy prices expected to rise 6% per year (DOE)
• PC Statistics– Average PC wastes ½ the energy delivered to it (Climate Savers)
– 50 million tons of e-waste produced yearly worldwide (Green PC)
• User Behavior– As many as 60% don’t turn computer off at night (PC Energy Report)
– US, with 5% world population, uses 30% of world’s paper (reduce.org)
– Typical office disposes 350 lbs waste paper/employee/year (NRDC)
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IT AT STANFORD
• Faculty, staff and students– 40,000 desktop/laptop computers– 6000 servers
• 10-20% of campus energy use from IT infrastructure• Number of computers growing 15% per year• Need to keep energy usage flat, or reduce, while
increasing productive output of IT infrastructure
So what can you do?
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• Keep using what you’re using– Replace less often
• 80% of carbon is from manufacturing, 20% from use
– Upgrade components: hard drive, memory, graphics card, power supply, etc.
• Replace with a laptop– Laptops use 80% less energy then desktop systems
• fewer parts, need less packaging, less shipping
– Recycle old machines• Make sure they don’t just get handed down
– Look for machines designed for upgrades• Memory, processor
1. USE YOUR COMPUTER LONGER
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2. BUY WITH SUSTAINABILITY IN MIND
• Buy only what you need– High-end graphics cards can use as much energy as CPU
• Play fewer games…
• Energy Star 5.0– Establishes efficiency requirements to ensure energy
savings
• Electronic Product Environmental Assessment Tool (EPEAT) – www.epeat.net– Searchable database of computer hardware and set of
holistic environmental guidelines• EPA + Hardware venders (Dell, HP, Apple, IBM, etc)
– 20% of computers shipped in 2007 were EPEAT registered• Up from 10% in 2006
– Calculate environment benefits and cost savings
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3. POWER MANAGEMENT … A FEW MYTHS
• Turning off your computer harms it– PCs are built to withstand 40,000 power cycles
• Historically, could damage hard disks. Not anymore (IEEE)
• It takes more energy to boot a computer than it does to keep it awake overnight– The small surge of power to turn it on is much smaller then
energy used to keep it on
• Screensavers save energy– Use more energy – 42-114 watts
• Originally designed to prevent burn-in, not save energy
– Better to turn the monitor off
• A computer that’s off uses 0 energy– Plugged in it draws ~2-3 watts for network
connectivity, etc.
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POWER MANAGEMENT – COMPARING THE OPTIONS
Watts used when:Hardware Awake Sleep Hibernate OffDesktop w/FlatPanel 66 6.4 2.3 2.3Laptop w/Flat Panel 37 4.3 1 1
Desktop w/CRT 120 5.1 2.3 2.3Laptop 15 1 1 1
Desktop 44 3.1 2.3 2.3Flat Panel Monitor 22 3.3 0 0CRT Monitor 76 2 0 0
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POWER MANAGEMENT IS AN EASY WIN
• Power Management comes with your computer– PC: Start/Control Panel/Power Options– Mac: Apple Menu/System Preferences/Energy Saver
• Only 10% of PC’s have Power Management enabled (EPA)
– Power management can save between $25-$75 in energy costs annually, per computer
– Reduces energy used by approx 1/3
• Make it easy – activate Big Fix for the Dept– Already on 22,000+ across campus
• Power Management enabled on 30%
– Local IT centrally manages Big Fix Power Management• Turn off Monitors after 15 minutes
– Local IT can customize for dept needs» Spin down disk, Sleep, Hibernate
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Big Fix Power Management deployment is managed locally, so you can help drive up your Group’s participation
SU Group
Number Windows Big
Fix Clients
# with Power Mgmt
% of Windows
Computers SU Group
Number Windows
Big Fix Clients
# with Power Mgmt
% of Windows Computer
sVaden 61 58 95% H&S 1648 77 5%Land & Buildings 580 544 94% AS 195 5 3%BA&CFO 347 313 90% Pres/Prov 203 4 2%VPSA 134 118 88% Other & Misc 828 14 2%IT Services 476 411 86% Students 7107 63 1%Public Affairs 15 12 80% Controller 214 1 0%Alumni Center 501 397 79% Clark Center 465 2 0%Medical School 4880 3684 75% Law 597 1 0%DAPER 214 152 71% Computer Science 1 0 0%SU Press 38 26 68% Continuing Studies 147 0 0%Earth Sciences 367 227 62% EH&S 3 0 0%Education 288 174 60% Highwire 111 0 0%Carnegie 207 111 54% Hoover 194 0 0%OGC 15 8 53% ResComp 1 0 0%OAE 34 18 53% SIE 6 0 0%GSB 1470 511 35% SLAC 17 0 0%Research 319 55 17% SMC 16 0 0%SUL/AIR 716 88 12% VPUE 164 0 0%R&DE 25 3 12% WST 23 0 0%Engineering 1152 93 8%
23,779 7,170 30%
Ask your local IT staff why your percentage isn’t higher
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4. OPTIMIZE PERFORMANCE
• If it’s running slow, it’s wasting energy– Talk to local IT team about cleaning it up– Do your own computer cleanup:
• Windows: Start/All Programs/Accessories/System Tools
– Disk Cleanup -- Free up disk space
– Disk Defragmenter – consolidates fragmented files
• Clear databases of unnecessary content– The more data they contain, the more hardware is used in
storing them
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5. MONITORS
• Hunt out the CRTs and get rid of them– Convert to flat panels
• CRT uses 2-3x more energy the flat panels
• CRT has lead & mercury – so dispose of properly
• Choose a LED flat-panel monitor– Light Emitting Diode (LED) monitors are mercury free and
recyclable– LCD, while better then CRT’s, contains mercury (CFL)
• Turn off the Monitor using Power Management– Disable your screen saver
• Hit the ‘Off’ button when you walk away– Uses zero energy
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6.PRINTING
• The Obvious Stuff:– Set your print drivers to default to double-sided
• Local IT can set your printers to default double-sided• Do the same for your copiers
– Print in DRAFT mode to save toner– Print to PDF and store electronically
• Lots of free PDF making software: www.download.com– Use Print Preview to avoid printing errors– Only print ‘page 1’ of emails ... Avoid the chain– Squeeze the margins
• Margins reduced from 1.25 to .75 in, nearly 5% paper savings– Use 100% Recycled Paper
• Greenprint– See and select pages before printing– Average employee prints 6 wasted pages per day
• Aardvark– Firefox extension – clean out graphics before printing
• Track printer/copier sustainability with network tool– Most vendors have a multi-vendor tool
• Xerox’s Sustainability Calculator, HP Webjet Admin
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7. POWER SUPPLIES
• All power supplies are not created equal– Older and many after-market ones are <80% efficient– Upgrade your power supply
• 80 Plus Certification
– >80% efficient
• International Energy Efficiency stamp “IV”
– >85% efficiency
• Energy Star “V”
– >87% efficiency
– Always check power supply efficiency when buying any electronic equipment
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8. BATTERIES
• Replace your old laptop battery– Laptop batteries wear out
• Same energy to achieve shorter battery life• Recycle and get a new one
– Always recycle batteries: Contain lots of toxic heavy metal materials
• Use them efficiently, so as to replace less often– Lithium-ion batteries
• Last longer when kept from running below a 40-percent charge
– Remove when plugged in• Trickle charge wears them out
– iPods, cell phones etc.• Take it out of the case before charging
– Cases trap heat and compromise battery capacity» Plug in more frequently, burn through # charges
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9. KEEPING IT DIGITAL
• Faxes– Scan and email docs rather then fax them– Get a Fax Server
• Receive and send faxes via email
• Scan your signature– Drop it on a Word or PDF Doc, make a new PDF, send
back via email• Saves printing-signing-faxing-scanning-filing
• Free PDF software at www.download.com
– Look for most highly rated/downloaded
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10. VAMPIRE PERIPHERALS
• Target your peripherals– Up to 75% of total energy usage from when they’re off
• Speakers, printer, monitor
• Anything that has an AC Adaptor
– Plug them into a Power Strip and turn off when done– Use a Smart Strip Power Strip
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11. REUSE AND RECYCLE
• Dispose of your old equipment properly– Toxic waste in electronics is substantial
• Leaks into surrounding soils and water
• Reuse, or recycle– Check with the manufacturer for take-back program– Reuse.stanford.edu– Recycle old equipment
• Stanford Equipment – e-waste bins in buildings
– Electronicrecyclers.com
• Personal Equipment – look for ewaste recycle days
– Aim for 0% to landfill
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12. Start Measuring Things
• Get a Kill a Watt meter– Test out your peripherals
• Speakers are a surprising sleeper
• Measure ‘Vampire’ energy drains
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13. AUDIT, ACT & MEASURE AGAIN
• Audit existing PC inventory– Run tests with the Kill a Watt meter
• Baseline current energy consumption
– Make Changes• Enable power management in your department
• Replace power strips with Smart Strips
• Disable screen savers
• Replace CRT’s with LED Flat panels
• Purchase EPEAT equipment
• Set printers and copiers to double-sided
• Track printer and copier usage with sustainability software
• Repeat & Improve
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Sustainability at StanfordRISING TO THE CHALLENGE
Sustainable IT Workspace: its.stanford.edu/wiki/sustainableit
https://docushare.stanford.edu/dsweb/View/Collection-12062
SustainableIT.stanford.edu
Joyce Dickerson -- [email protected]