ENERGY STAR ® principally is: a voluntary labeling program designed to identify and promote energy-efficient products through its partnerships with more than 9,000 private and public sec
Trang 1ENERGY STAR ® Green Machines
Computer Specification 4.0 & Beyond *
Chicago-Kent College of Law
Energy LawSpring 2008Brian O WatsonApril 30, 2008
Trang 2Presentation Overview
Trang 3Know Your Eco Labels
Trang 4What Is ENERGY STAR ® ?
ENERGY STAR ® is:
a joint program of the EPA and the Department of Energy geared
toward helping Americans save money and protect the environment through energy efficient products and practices.
ENERGY STAR ® principally is:
a voluntary labeling program designed to identify and promote energy-efficient products through its partnerships with more than 9,000 private and public sector organizations
ENERGY STAR ® costs (MM):
Trang 540+ Product Categories Are
Appliances
Clothes washers Dishwashers Refrigerators Dehumidifiers Air cleaners Water coolers
Battery chargers Cordless phones Answering machines TV/VCRs DVD products Home audio
Office Equipment
Computers Monitors Printers Copiers Scanners Fax machines Multi-function
Lighting
CFLs Residential light
fixtures Exit signs Traffic signals
Home Envelope
Home sealing Roof products Windows/Doors
Commercial Food Service
Refrigerators Freezers Fryers Steamers Hot food cabinets Vending
Trang 6ENERGY STAR® Specification
Development Process
Trang 7ENERGY STAR ® Computer
Version 4.0 Timeline
July, 2006
Stakeholder Comments Due on Draft 3.
July, 2006
EPA will distribute an update
document to all stakeholders
informing them of the Agency’s
approach for workstations
August, 2006
Industry Data Due to EPA on
Current Models (all product
categories).
August, 2006
EPA releases proposed levels in the form of an Update.
Trang 8Consumers Trust ENERGY STAR®
The ENERGY STAR ® mark ranks among the highest level of influence on product
purchase among all consumer emblems, similar in ranking to the Good Housekeeping Seal and Consumer Reports.
Tremendous Influence Great Deal of Influence Some Influence
Trang 9Consumer Value in ENERGY STAR®
• Consumer awareness and desire for
efficiency savings is high, both economically and altruistically.
• In 2006, more than 65% of households
nationwide recognized the ENERGY STAR®
label
• Of households that purchased ENERGY
STAR® products in the past year:
– More than 60% of them reported the label as
influential to their purchasing decision
– More than 70% of them reported they are likely to
recommend ENERGY STAR® products to friends
Trang 10The Question
• How much energy
can we expect to save in 2008
through ENERGY STAR®?
Trang 11Expected annual savings in 2008
An academic calculation of:
- 25.5 GW of peak load savings
- 29.9 MMtC of emission
avoidance
Trang 12Summary of National Residential Electricity
Consumption by End Use for 2020
Electronics is 19% of total residential electricity
Trang 13the U.S do not turn
their PC off at night
It’s 3 a.m
and our federal computers are still running!
• The U.S government
is the largest energy consumer in the
nation
Trang 14Federal Government is Supposedly Focused on Its Computing Use
1999
Trang 15Today’s Computing Reality
• Average desktop wastes
nearly half of the power delivered
• Servers lose approximately
one-third of their power
• 90% of desktops do not
utilize optimized power management settings
Trang 16Power Management Myths
• Myth: Screensavers are needed to eliminate “burn-in”
– False: The small surge of power when a computer is turned on is
significantly less than the energy used by running the computer when not needed.
• Myth: Shutting down computers daily does more harm than
good, and shortens the life of the computer.
– False: Modern computers are designed to withstand frequent
shutdowns.
Trang 17Office Equipment:
After-hours Power States
Trang 18ENERGY STAR® Computer Specification
Trang 19ENERGY STAR ® Notebooks
• ENERGY STAR® Basics for Notebooks
1 Requirements for the AC adapter (notebook power brick)
2 Idle power requirements
3 Sleep power requirements, and
4 Standby (Off) power requirements
Trang 20ENERGY STAR ® Desktops
Though it is the smartest device in the house, the desktop computer has been dumb when it comes to conserving energy It's as if every household has a big, gas-guzzling vehicle (or two) in its driveway, all with engines racing Most people have more computer than they need, says Bruce Nordman, a researcher at
Lawrence Berkeley National Laboratory “It's
like we're all driving sport utility computers.”
And those hulking, desktop PCs gulp power because they've traditionally been shipped with their throttle stuck wide open Of course, the energy wasted is more that of a big light
bulb than an SUV But if desktop PCs
glowed like their equivalent 150-watt bulb, we'd think to dim them or even switch them off They don't glow, and few PC owners bother to automatically power them down.
David LaGesse, The PC's Dirty Little Secret: It Wastes Power Shamelessly, U.S News & World Report (April 17, 2008) (emphasis added)
Trang 21ENERGY STAR® Desktops
Trang 22Final Version 4.0: Effective Qualification Rates*
* For Tier 1 Specification testing during rules drafting with data coverage of 141 desktops from six manufacturers and
• No interim grandfathering of ENERGY STAR ® Version 3.0 compliance
• On July 20, 2007, the effective date:
– Only 125 desktops and laptops compliant
– Lenovo offered the most models with 78
Trang 23Undisputed: Power Management
Makes an Impact
• Miami-Dade School District
– PCs being kept on for an average of 21 hours each day to 10 hours per day
– Miami-Dade went from being in the 35th percentile, at $461,655 per month, to the fourth percentile, at $243,157 per month
– Estimates that PC power management will save the district at least $2MM per year
• General Electric
– $2.5MM a year through approximately 75,000 PCs
– Nearly $6.5MM over three years
• City of Boston
– reduced energy consumption on its computers by an average of 44% since it started
using PC power management software
– 180 kW per PC per year on 1,500 PCs in Boston City Hall
• Intel
– 65,000 laptop displays and 45,000 desktop monitors worldwide
– Save about 9,650,000 kWh over the next year
– At $0.05 per kWh, Intel will realize an annual savings of $482,000
Trang 24How Are We As A Global Citizen?
Program Country Date Type Notes of Interest
Trang 25Power Supplies: Identify the
Here it is on the new
box you bought!
Now, let’s see if you can find it on your power supply?
Trang 26Why External Power Supplies?
Estimated Power Supply Sales and Number in Use
Source: Power Supply Efficiency What Have We Learned – Ecos Consulting February
Trang 27Why External Power Supplies?
• EPA estimates that there are possibly ten power
adapters for every person in the U.S (as many as 3.1 billion in total).
– About 6 to 11% of U.S electricity use is converted from high
voltage AC to low voltage DC in power supplies: (200 to 340 billion kW-h/year worth $16 to $27 billion/year
– About 3 to 4% of U.S electricity use is consumed inside power supplies: (100 to 140 billion kW-h/year worth $8 to $11
billion/year)– About 1 to 2% of U.S electricity use could be saved by more
efficient power supplies (35 to 70 billion kW-h/year worth $3.4 to
$6.8 billion/year)
• ENERGY STAR® Proposed revisions to no
load and active mode requirements (2008)
Trang 28National Electricity Use and Savings Potential for Various Products Containing Power Supplies
Trang 29• “Efficiency” = power out / power in
• Measure both when product is in active mode
(operating) and standby modes
• If product has high active power use or long average
hours of use/day, active will dominate
– (If not, standby mode may dominate)
• Ideally, a power supply-containing
product has minimal standby
consumption, high operating
efficiency across a wide range of
load conditions, and is smart
enough to “sleep” after inactivity.
What Is an “Efficient” Power Supply?
Trang 30Power Conversion
Trang 31Microprocessor Power Supply
“OFF” - 17 Watts ON - 21 Watts
Thermographs of Computer Tower
Trang 32Why So Bad?
Trang 33Losses Are Somewhat a Matter of Design
Trang 34Price vs Value Propositions
Goal: Lowest Price
• Take cost out “at all costs”
• Quality and reliability can
drop
• No product differentiation
• Least common denominator
design: no features, no profits
• Penny-wise/pound foolish:
What saves the buyer $1
up-front can add $10 or $20 to
lifetime energy costs
• All of us pay more – higher
energy bills, more air
pollution, more new power
plants and power lines
Goal: Highest Value
• Emphasis on clever design
and differentiation: multiple viable paths to success
• Minimize lifecycle cost:
purchase price + lifetime maintenance, energy, &
pollution costs
• Specs, labels, and utility
programs help build a message of value: “may cost more, but worth more”
• Products more desirable:
smaller, quieter, cooler, more convenient
Trang 35Savings Potential is Huge
• What if all linear power supplies were improved from
about 30% efficiency to 80%?
• What if all switching power supplies were improved
from about 70% efficiency to 80%?
– Well, annual savings would be more than 1% of total U.S
electricity use: about 32 billion kW-h and more than $2.5 billion
in lower energy bills
• Very cost effective – incremental costs often less
than $1 (in some cases pennies) per power supply.
• Additional savings possible from substantial
reductions in standby mode power consumption
(currently averages 50 to 100 watts/home).
Trang 36What Is 80 Plus? *
• 80 PLUS is an electric utility-funded incentive program to integrate
more energy-efficient power supplies into desktop computers and servers
– Ecos Consulting & EPRI pay incentives and provide marketing and design/test support for all qualifying PCs shipped into the service territories of participating utilities throughout the U.S.
• Market barriers prevented widespread manufacture and use of highly
efficient power supplies
• 80 PLUS is a manufacturer buy-down program for efficient power
supplies in desktop PCs and desktop-derived servers
– Participating utilities and energy efficiency organizations across North America have contributed over $5 million of incentives to help the computer industry transition to 80 PLUS certified power supplies.
• Qualifying units must be at least 80% efficient at 20%,
50%, and 100% load, plus have a power factor of
at least 0.9 at 100% load.
• Utility payments of $5 per qualifying PC will lead to
annual energy savings of 85 kW-h/unit, or more than
$25 over a computer’s 4 year life.
* It’s not ENERGY STAR ® ? ENERGY STAR ® Computer Specification (Version 4.0)
goes into effect The specification includes 80 PLUS power supply efficiency levels
Trang 3780 PLUS Efficiency Test Results
352 Compliant Models from 66 Manufacturers
Trang 38Progress on the Federal Level?
Trang 39LocalCooling.com:
Conscious Way to Expend Electricity
Trang 40Behind the Green Curtain
• World of Tech Big tech companies are going
green
– … but what about the off-brand subcontractors that actually
make their components?
– But what about your old PC?
Trang 41ENERGY STAR® Appliances Save More
Than the Label Suggests
Trang 42ENERGY STAR® Conclusion