DOCUMENT #: GSC15-PLEN-78

FOR: Presentation

SOURCE: TTC

AGENDA ITEM: Opening/Plenary 6.8 "ICT & the Environment"

CONTACT(S): Yoh SOMEMURA

Green ICT activities of TTC & ITU-T toward low-carbon society

Yoh SOMEMURA

The Telecommunication Technology Committee (TTC)as Prime PSO for ICT & Environment

Global Standards Collaboration (GSC) GSC-15

22

Environmental Impact

caused by ICT

Environmental Impactreduction achieved

by using ICT services

Dematerialization (digitization of information)

Reduction of movement and transportation

Making industry and lives efficient Enhancing environmental awareness

and environmental educationEnvironmental sensors and

environmental monitoring

Consumption of energy Consumption of natural resources Generation of waste

Negative environmental impacts Positive environmental impacts

Minimizationtowards

Sustainable ICT Sector

Maximizationtowards

Sustainable Society

Must quantify both Must quantify both environmental environmental impacts. impacts.

Must quantify both Must quantify both environmental environmental impacts. impacts.

Relationship between ICT & Environment

Green by ICTGreen by ICT

Green of ICTGreen of ICT

33

CO2 reduction of all sectorsby using ICTs

Energy consumption (CO2 emissions) reduction through the use of ICTs is defined as follows.

Energy consumption reduction

Reduction effect of energy consumption by utilizing ICTs

Energy consumption through the use of ICTs

＝ -

CO

2 em

issi

ons

(Bt-

CO

2)

30

20

10

Year

All Other Sectors

ICT Sector

CO

2 em

issi

ons

(Bt-

CO

2)

30

20

10Reductions

by ICTs

of ICTs

Year

All Other Sectors

ICT Sector

44

Structure of Study Group 5 (SG5)

WP3: ICT and Climate ChangeWP3: ICT and Climate ChangeChair: Keith Dickerson (UK)Chair: Keith Dickerson (UK)Vice Chair: Eunsook Kim (Korea) and Takeshi Origuchi (Japan)Vice Chair: Eunsook Kim (Korea) and Takeshi Origuchi (Japan)

　　 Q17: Coordination and Planning of ICT&CC related standardizationQ17: Coordination and Planning of ICT&CC related standardization　　 Q18: Methodology of environmental impact assessment of ICTQ18: Methodology of environmental impact assessment of ICT　　 Q19: Power feeding systemsQ19: Power feeding systems　　 Q20: Data collection for Energy Efficiency for ICTs over the lifecycleQ20: Data collection for Energy Efficiency for ICTs over the lifecycle　　 Q21: Environmental protection and recycling of ICT equipments/facilitiesQ21: Environmental protection and recycling of ICT equipments/facilities

SG5: Environment and Climate ChangeSG5: Environment and Climate Change

WP1: Damage prevention and safety WP1: Damage prevention and safety

WP2: Electromagnetic fields: emission, immunity and human exposure WP2: Electromagnetic fields: emission, immunity and human exposure

(Study Period: May 2009 ~ 2012)(Study Period: May 2009 ~ 2012)

55

Question 18/5: Methodology of Environmental Impact Assessment of ICT

The purpose of this Question is to develop Recommendations on The purpose of this Question is to develop Recommendations on methodology for environmental impact assessment of ICT and on methodology for environmental impact assessment of ICT and on collecting and calculating reliable data for the assessment model.collecting and calculating reliable data for the assessment model.

Following work items for series Recommendations are running in Following work items for series Recommendations are running in SG5 for methodologies:SG5 for methodologies:

(2) (2) L.methodology_ICTL.methodology_ICT goods and services goods and services

(3) L.methodology_ICT projects(3) L.methodology_ICT projects

(4) L.methodology_ICT in organizations(4) L.methodology_ICT in organizations

(5) L.methodology_ICT sector in countries(5) L.methodology_ICT sector in countries

Overview and general principles Overview and general principles of methodologiesof methodologies

Methodology for environmental impact assessment Methodology for environmental impact assessment of ICT sector in countriesof ICT sector in countries

Methodology for environmental impact assessment Methodology for environmental impact assessment of ICT in organizationsof ICT in organizations

(1) L.methodology_general umbrella(1) L.methodology_general umbrella

Methodology for environmental impact assessment Methodology for environmental impact assessment of ICT projectsof ICT projects

Methodology for environmental impact assessment Methodology for environmental impact assessment of ICT goods and servicesof ICT goods and services

66

Strategic Collaborative Direction in GSC (proposed)

Encourage PSOs• to contribute to ITU-T initiatives on ICT and

climate change to standardize energy-saving ICT systems and

methodologies for analyzing, evaluating, and quantifying GHG reductions that may be achieved through ICT use

• to actively participate in standardization work in WP3/SG5

to produce recommendations on ICTs and climate change

77

Next Steps/Actions of TTC in Support of ITU-T Initiatives

At a WP3/SG5 meeting of ITU-T, TTC members will actively contribute to discussions on standardizing a methodology for evaluating the energy-saving impact of ICT services in collaboration with other PSOs.

Future TTC Contribution

• Propose a methodology and power feeding, etc.

• Support management and operation of WP3/SG5.

• Liaise with other related organizations.

88

SummarySummary

International standardization on Environmental technologies for telecommunication, in particular to ICT and climate change is now underway in ITU-T.

We need to reduce environmental loads of ICT equipment and ICT sector, and we also expect that ICT can reduce environmental loads, particularly GHG emissions, in other relevant sectors.

For this purpose, prompt standardizations on objective and transparent methodology of ICT environmental impact assessment are required.

99

Proposed Resolution Proposed modifications to an existing Resolution *

* (GSC14) “RESOLUTION GSC-14/08: (Plenary) ICT and the Environment (Revised),” GSC14-CL-015R2 (16 July 2009)

• Current Activities Universal power adapter (ITU-T, IEC, IEEE) Power feeding system using HVDC Smart Grid & Cloud Computing (SDOs/Fora including ITU-T) Intelligent Transport System (ITU-T)

• Encourage PSOs to collaborate with “Smart grids” and “Cloud Computing”as HISs

of GSC

1010

Supplementary Slides

1111

Item ContentConsumption of goods

By reducing the consumption of goods (e.g. paper), it is possible to reduce the energy consumption involved with production and disposal and to reduce waste emissions.

Electric power/energy consumption

By improving the efficiency of electric power and energy use and reducing consumption, it is possible to reduce the energy consumption involved with electricity generation and supply.

Movement of people By reducing the movement of people, it is possible to reduce the energy consumption needed for methods of transportation.

Movement of goods By reducing the movement of goods, it is possible to reduce the energy consumption needed for transportation methods.

Office space efficiency

By using office space more efficiently, it is possible to reduce the electricity consumption of lighting and air-conditioning and to reduce energy consumption.

Storage of goods By reducing the storage space of goods, it is possible to reduce the electricity consumption involved with lighting and air-conditioning and to reduce energy consumption.

Business efficiency By improving business efficiency, it is possible to reduce resource and energy consumption.

Waste material By reducing waste emissions, it is possible to conserve the environment and reduce the energy consumption needed to dispose of waste.

Effect of reducing energy consumption based on using ICT Green by ICTGreen by ICT

MakerMakerWholesaleWholesale RetailRetail

ConsumerConsumer

Decrease unnecessary Decrease unnecessary productionproduction

Reduce intermediate Reduce intermediate distributiondistribution

Reduce retail Reduce retail salessales

No movement of people No movement of people through product through product return/negotiationreturn/negotiation

No movement of people No movement of people through product through product return/negotiationreturn/negotiation

No movement of people No movement of people through through comparing/purchasing comparing/purchasing productsproducts

No product No product distributiondistribution

No product No product distributiondistribution

No product No product distributiondistribution

Reduce Reduce movement of movement of consumersconsumers

Direct from manufacturer (.e.g., computer)Direct from manufacturer (.e.g., computer)Example of effective Example of effective online shoppingonline shopping

1212

Energy consumption Energy consumption reduction effectreduction effect

Impact of consumption of Impact of consumption of goods/services goods/services

on the environment on the environment

Unit energy consumption Unit energy consumption when one unit of goods/when one unit of goods/services is consumed services is consumed

＝＝ ××

■ ■ The energy consumptionThe energy consumption (CO (CO22 emissions) emissions) reduction effect by utilizing ICTs reduction effect by utilizing ICTs can be generally calculated as follows if the consumption of goods/services by can be generally calculated as follows if the consumption of goods/services by utilizing ICTs can be identified. utilizing ICTs can be identified.

Methodology

Energy Energy consumptionconsumption

Amount used byAmount used bydevice/NW useddevice/NW used

Unit energy consumption when oneUnit energy consumption when oneunit of device/NW is usedunit of device/NW is used＝＝ ××

■ ■ The energy consumptionThe energy consumption (CO (CO22 emissions) emissions) through the use of ICTs can be through the use of ICTs can be generally calculated as follows if the amount used by the device/network (NW) can generally calculated as follows if the amount used by the device/network (NW) can be identified. be identified.

““The energy consumption reductionThe energy consumption reduction effect by utilizing ICTs” effect by utilizing ICTs” and “the energy and “the energy consumption through the use of ICTs.” consumption through the use of ICTs.”

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Examples of Calculation Formula for Energy Consumption Reduction Effect by Utilizing ICT(1) Consumption of goods (Paper, CDs, DVDs, etc.)(1) Consumption of goods (Paper, CDs, DVDs, etc.)

Energy reduction = (Energy consumption to produce one unit of the product) Energy reduction = (Energy consumption to produce one unit of the product) × (Amount reduced)× (Amount reduced)

E.g., Reduction of paper: E.g., Reduction of paper: (Energy to produce paper (A4 size, 1 sheet) (J)) × (Quantity reduced (Sheets)) (Energy to produce paper (A4 size, 1 sheet) (J)) × (Quantity reduced (Sheets))

(2) Movement of goods (mail, trucks, rail cargo, cargo ships, etc.)(2) Movement of goods (mail, trucks, rail cargo, cargo ships, etc.)Energy reduction = (Unit energy consumption for each transportation means (J))Energy reduction = (Unit energy consumption for each transportation means (J))

(Transportation distance reduced (km)) (Transportation distance reduced (km))

E.g., Reduction of the number of mails: E.g., Reduction of the number of mails: (Energy consumption per mail (J)) (Energy consumption per mail (J)) (Number of mails reduced (mail)) (Number of mails reduced (mail))

E.g., Reduction of truck transportation: E.g., Reduction of truck transportation: (Energy consumption per ton-km (J)) (Energy consumption per ton-km (J)) (Transportation distance reduced (km)) (Transportation distance reduced (km)) (Cargo weight reduced (t))(Cargo weight reduced (t))

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Examples of Calculation Formula for Energy Consumption through the Use of ICTs

(1) ICT device(1) ICT deviceEnergy consumption = (Unit energy consumption for each type of device) × (Amount used)Energy consumption = (Unit energy consumption for each type of device) × (Amount used)

E.g.,E.g., Production of devices for Video conferences:Production of devices for Video conferences: (Energy consumption to produce one device (J)) × (Number of units used)(Energy consumption to produce one device (J)) × (Number of units used)

Use of devices for Video conferences:Use of devices for Video conferences: (Electric power to use one device (kW)) × (Time of use (h)) × (Number of units used)](Electric power to use one device (kW)) × (Time of use (h)) × (Number of units used)]

Energy consumption = (Energy consumption per amount of use) × (Amount used)Energy consumption = (Energy consumption per amount of use) × (Amount used)

E.g., E.g., Use of networks: Use of networks: (Apportioned [allocated] energy consumption per line (J)) × (Number of lines used)](Apportioned [allocated] energy consumption per line (J)) × (Number of lines used)]

(2) Network use(2) Network use

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Evaluation Result

0

5

10

15

20

25

Conference on a trip Video conferenceEner

gy C

onsu

mpt

ion(

GJ/

year

)DisposalUseProduction

Evaluation Result

0.00.51.01.52.02.53.03.54.04.5

Conference on a trip Video conference

Ener

gyC

onsu

mpt

ion(

GJ/

year

)

DisposalUseProduction

Example of Trial Calculation(Video Conference)

Video conference held between Tokyo and Yokohama, once a week (48 times / year), one hour each time, participated in by two people from each office

Video conference held between Tokyo and Yokohama, every working day (240 times / year), eight hours each time, participated in by two people from each office

Case 1 Case 2

Reduction of 53% (91%) Reduction　of　52%　(59%)

The figure in ( ) is based on only the “use” stage.

The figure in ( ) is based on only the “use” stage.

Conference with travel Conference with travel

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22　April　2023

16

Universal power adapter and charger solution for mobile terminals

and other ICT devices (Question 21/5)[on WP3/5 in ITU-T SG5]

First Recommendation in WP3/5 (L.1000) Statement: Planning to extend to apply not only mobile phone but also ICT devices

1717

- HVDC does not require as many power conversion steps with high system effectiveness.- HVDC does not require as many power conversion steps with high system effectiveness.- HVDC lowers drain and reduces facility cost.- HVDC lowers drain and reduces facility cost.- HVDC does not require as many power conversion steps with high system effectiveness.- HVDC does not require as many power conversion steps with high system effectiveness.- HVDC lowers drain and reduces facility cost.- HVDC lowers drain and reduces facility cost.

Alternating current (AC)Alternating current (AC)Alternating current (AC)Alternating current (AC)

BatteryBattery

AC/AC/DCDC

DC/DC/DCDC CPUCPU

11 22 33 444 power conversion steps4 power conversion steps

100 V AC100 V ACto 200 V ACto 200 V AC

Direct current (48-V type)Direct current (48-V type)Direct current (48-V type)Direct current (48-V type)

AC/AC/DCDC

BatteryBattery

DC/DC/DCDC CPUCPU

11 222 power conversion steps2 power conversion steps

48 V DC48 V DC

Higher-voltage direct current (HVDC)Higher-voltage direct current (HVDC)Higher-voltage direct current (HVDC)Higher-voltage direct current (HVDC)

BatteryBattery

DC/DC/DCDC CPUCPU

11 22

Approx.Approx.400 V DC400 V DC

2 power conversion steps2 power conversion steps

-Higher efficiency　 (fewer conversion

stage)-Higher reliability　 (battery direct

connecting)

-Higher efficiency　 (fewer conversion

stage)-Higher reliability　 (battery direct

connecting)

- Thinner cablesThinner cables- Improved installationImproved installation

flexibilityflexibility

- Thinner cablesThinner cables- Improved installationImproved installation

flexibilityflexibility

ICT equipmentICT equipment

ICT equipmentICT equipment

ICT equipmentICT equipment

15%15% 　 　　 　reductionreduction

Approach for reducing power consumption based on DC power supply

RectifierRectifier

AC/AC/DCDC

DC/DC/ACAC

AC/AC/DCDC

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