1. Trang chủ
  2. » Ngoại Ngữ

ENERGY STAR® Green Machines Computer Specification 4.0 & Beyond*

42 33 0

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Định dạng
Số trang 42
Dung lượng 14,49 MB

Các công cụ chuyển đổi và chỉnh sửa cho tài liệu này

Nội dung

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 1

ENERGY STAR ® Green Machines

Computer Specification 4.0 & Beyond *

Chicago-Kent College of Law

Energy LawSpring 2008Brian O WatsonApril 30, 2008

Trang 2

Presentation Overview

Trang 3

Know Your Eco Labels

Trang 4

What 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 5

40+ 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 6

ENERGY STAR® Specification

Development Process

Trang 7

ENERGY 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 8

Consumers 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 9

Consumer 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 10

The Question

• How much energy

can we expect to save in 2008

through ENERGY STAR®?

Trang 11

Expected annual savings in 2008

An academic calculation of:

- 25.5 GW of peak load savings

- 29.9 MMtC of emission

avoidance

Trang 12

Summary of National Residential Electricity

Consumption by End Use for 2020

Electronics is 19% of total residential electricity

Trang 13

the 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 14

Federal Government is Supposedly Focused on Its Computing Use

1999

Trang 15

Today’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 16

Power 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 17

Office Equipment:

After-hours Power States

Trang 18

ENERGY STAR® Computer Specification

Trang 19

ENERGY 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 20

ENERGY 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 21

ENERGY STAR® Desktops

Trang 22

Final 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 23

Undisputed: 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 24

How Are We As A Global Citizen?

Program Country Date Type Notes of Interest

Trang 25

Power 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 26

Why External Power Supplies?

Estimated Power Supply Sales and Number in Use

Source: Power Supply Efficiency What Have We Learned – Ecos Consulting February

Trang 27

Why 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 28

National 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 30

Power Conversion

Trang 31

Microprocessor Power Supply

“OFF” - 17 Watts ON - 21 Watts

Thermographs of Computer Tower

Trang 32

Why So Bad?

Trang 33

Losses Are Somewhat a Matter of Design

Trang 34

Price 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 35

Savings 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 36

What 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 37

80 PLUS Efficiency Test Results

352 Compliant Models from 66 Manufacturers

Trang 38

Progress on the Federal Level?

Trang 39

LocalCooling.com:

Conscious Way to Expend Electricity

Trang 40

Behind 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 41

ENERGY STAR® Appliances Save More

Than the Label Suggests

Trang 42

ENERGY STAR® Conclusion

Ngày đăng: 15/05/2018, 15:44

TỪ KHÓA LIÊN QUAN

w