Energy Star labels and Information Technology

Rob JonesEnvironmental Manager CSC UK

May 2011

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Energy Star

• Voluntary – appliance specific – energy labelling scheme.• Sets minimum energy efficiency standards by item type.

• Created in 1991 partnership with US EPA and Dept of energy.• 1992 first accredited products including PCs and monitors.• Only covers energy in the in use phase of the lifecycle.• 2003 EU agreement for office equipment only.• Quoted in UK Govt buying standards.• Standards updated regularly .

• www.eu-energystar.org

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Energy Star Web functionality

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Energy Star Web functionality

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What does V5.0 Energy Star really mean?

• Labelled electronically or physically.• User information requirements.• Power management.• Item must fit Energy Star definition (ie Desk top computer, thin client,

workstation etc)• Internal PSU 85% efficiency at 50% of rated output 82% at 20 and 100%• External PSU Must meet Energy star spec for external PSU (separate)• TEC • Category A ≤ 148 kWh• Category B ≤ 175 kWh• Category C≤ 209 kWh• Category D≤ 234 kWh• + allowances for additional memory and HDD’s

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Examples of variance in accredited productsETEC = Min kWh pa ((1.4 x 0.55) + (3 x 0.05) + (35.3 x 0.4)) x (8760/1000)

Best to worst difference £12.54 pa

With power management disabled (by employee?) best ETEC changes from 131.6 to 309.2

Running cost and carbon impact increase by an additional 134%

ModelFormat

Idle mode w

Standby (Off mode)

wSleep

mode wE Tec kWh CPU model CPU's

Core speed GHz

System

memory Gb HDD's

HP Z210 SFF Workstation D 35.3 1.4 3 131.6Intel (Xeon E31280 1 3.5 16 1

HP Z210 CMT Workstation D 49.6 1.5 3.8 182.5Intel (Xeon E31280 1 3.5 16 2

Lenovo Think Centre A63 6674 D 71.3 1.6 1.9 257AMD Phenom X3 1 2.8 4 2

lenovo H405 7723 D 67.9 0.8 1.8 241.3AMD Phenom X4 1 3 8 2

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Energy Star – A cautionary tale

“US agencies toughen up Energy Star standards after embarrassing lapses

Undercover investigators gain Energy Star accreditation for phony gas-powered alarm clock “

Business Green. 16 Apr 2010

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Limitations of Energy Star Labelling.

• Manufacturers able to submit own data for accreditation.• May be substantial variation in compliant product performance.• Values are comparative and do not take applications into account.• No account of production and supply impact• How you manage usage is as important• Configuration may disable power management features.

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EPEAT – A more comprehensive standard.

www.epeat.net

• Graded performance bronze / silver / gold.• Energy Star accreditation.• Hazardous material content.• Recycled content.• Manufacturer take back.• Design for end of life.• Corporate sustainability performance.• Packaging.

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Use phase energy consumption is important but How important?

• European Commission – Energy Star – Eco Profiles

2%

6%

93%

Printer Copier Energy Impact

Direct and Indirect energy (equipment)

Indirect energy (toner)

Indirect energy (paper)

78%

19%

3%

PC /Monitor Energy Impact

Energy during use

Energy for production

Energy for disposal

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Managing usage – Example 1 CSC deployment of NightWatchman ®

• The most energy efficient and energy star rated PC’s and servers can waste power if not managed correctly.

• CSC have employed NightWatchman ® across 50,000 PC’s with 40% reduction in desktop energy consumption.

• CSC have trialled NightWatchman ® Server edition on 68 Servers.

In summary, the pilot has been a positive experience for CSC, with results that provide insight into all areas of data center management. “If asked what the pilot has taught us,” says John Glowacki Jr., Corporate Vice President and Chief

Technology Officer, CSC , it would be that we run a tight ship and manage our server fleet well; but also that even a well managed fleet can find efficiency improvements with Server Edition.”

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Managing usage – Example 2 Print Rationalisation

At quoted monthly volumes existing devices used a combinedtotal of 296.20 kWh of electricity

per month.

59.22 kWh printing.163.95 kWh in stand by.73.02 kWh out of hours.

kwh per device

0.0020.0040.0060.0080.00

100.00120.00140.00160.00180.00

kwh per device

At quoted monthly volumes the rationalised solution uses a

combinedtotal of 52.06 kWh of electricity

per month.

33.01 kWh printing.17.51 kWh in stand by.1.46 kWh Out of hours.

Ricoh Mfd Monthly energy usage

0.00

5.00

10.00

15.00

20.00

25.00

30.00

MP4500SP MP4500SP MP2000SP

kwh

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Questions and Comments.