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
Relationship between ICT & Environment
Environmental Impact
Green of ICT
caused by ICT
Environmental Impact
reduction achieved
by using ICT services
Maximization
towards
Sustainable Society
Green by ICT
Minimization
towards
Sustainable ICT Sector
Negative environmental impacts
 Consumption of energy
 Consumption of natural resources
 Generation of waste
Must quantify both
environmental impacts.
Positive environmental impacts
Dematerialization (digitization of
information)
Reduction of movement and
transportation
Making industry and lives efficient
Enhancing environmental awareness
and environmental education
Environmental sensors and
environmental monitoring
2
All Other Sectors
30
20
10
ICT Sector
CO2 emissions (Bt-CO2)
CO2 emissions (Bt-CO2)
CO2 reduction of all sectors
by using ICTs
All Other Sectors
30
by ICTs
20
Reductions
10
ICT Sector
of ICTs
Year
Year
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
3
Structure of Study Group 5 (SG5)
(Study Period: May 2009 ~ 2012)
SG5: Environment and Climate Change
WP1: Damage prevention and safety
WP2: Electromagnetic fields: emission, immunity and human exposure
WP3: ICT and Climate Change
Chair: Keith Dickerson (UK)
Vice Chair: Eunsook Kim (Korea) and Takeshi Origuchi (Japan)
Q17: Coordination and Planning of ICT&CC related standardization
Q18: Methodology of environmental impact assessment of ICT
Q19: Power feeding systems
Q20: Data collection for Energy Efficiency for ICTs over the lifecycle
Q21: Environmental protection and recycling of ICT equipments/facilities
4
Question 18/5: Methodology of
Environmental Impact Assessment of ICT
 The purpose of this Question is to develop Recommendations on
methodology for environmental impact assessment of ICT and on
collecting and calculating reliable data for the assessment model.
 Following work items for series Recommendations are running in
SG5 for methodologies:
(1) L.methodology_general umbrella
Overview and general principles of methodologies
(2) L.methodology_ICT goods and services
Methodology for environmental impact assessment
of ICT goods and services
(3) L.methodology_ICT projects
Methodology for environmental impact assessment
of ICT projects
(4) L.methodology_ICT in organizations
Methodology for environmental impact assessment
of ICT in organizations
(5) L.methodology_ICT sector in countries
Methodology for environmental impact assessment
of ICT sector in countries
5
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
6
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.
7
Summary
 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.
8
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
9
Supplementary Slides
10
Effect of reducing energy consumption
based on using ICT
Green by ICT
Item
Consumption of
goods
Electric
power/energy
consumption
Content
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.
Movement of people
By reducing the movement of people, it is possible to reduce the energy consumption
needed for methods of transportation.
By reducing the movement of goods, it is possible to reduce the energy consumption
needed for transportation methods.
By using office space more efficiently, it is possible to reduce the electricity consumption of
lighting and air-conditioning and to reduce energy consumption.
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.
By improving business efficiency, it is possible to reduce resource and energy consumption.
By reducing waste emissions, it is possible to conserve the environment and reduce the
energy consumption needed to dispose of waste.
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 goods
Office space
efficiency
Storage of goods
Business efficiency
Waste material
Example of effective
online shopping
Maker
Direct from manufacturer (.e.g., computer)
No product
distribution
Wholesale
No movement of people
through product
return/negotiation
Decrease unnecessary
production
No product
distribution
Retail
No movement of people
through product
return/negotiation
Reduce intermediate
distribution
No product
distribution Consumer
No movement of people
through
comparing/purchasing
Reduce
products
Reduce retail
sales
movement of
consumers
11
Methodology
“The energy consumption reduction effect by utilizing ICTs”
and “the energy consumption through the use of ICTs.”
■ The energy consumption (CO2 emissions) reduction effect by utilizing ICTs
can be generally calculated as follows if the consumption of goods/services by
utilizing ICTs can be identified.
Energy consumption
＝
reduction effect
Unit energy consumption
Impact of consumption of
goods/services
× when one unit of goods/
services is consumed
on the environment
■ The energy consumption (CO2 emissions) through the use of ICTs can be
generally calculated as follows if the amount used by the device/network (NW) can
be identified.
Energy
consumption ＝
Amount used by
device/NW used
×
Unit energy consumption when one
unit of device/NW is used
12
Examples of Calculation Formula for Energy
Consumption Reduction Effect by Utilizing ICT
(1) Consumption of goods (Paper, CDs, DVDs, etc.)
Energy reduction = (Energy consumption to produce one unit of the product)
× (Amount reduced)
E.g., Reduction of paper:
(Energy to produce paper (A4 size, 1 sheet) (J)) × (Quantity reduced (Sheets))
(2) Movement of goods (mail, trucks, rail cargo, cargo ships, etc.)
Energy reduction = (Unit energy consumption for each transportation means (J))
 (Transportation distance reduced (km))
E.g., Reduction of the number of mails:
(Energy consumption per mail (J))  (Number of mails reduced (mail))
E.g., Reduction of truck transportation:
(Energy consumption per ton-km (J))  (Transportation distance reduced (km))
 (Cargo weight reduced (t))
13
Examples of Calculation Formula for Energy
Consumption through the Use of ICTs
(1) ICT device
Energy consumption = (Unit energy consumption for each type of device) × (Amount used)
E.g.,
Production of devices for Video conferences:
(Energy consumption to produce one device (J)) × (Number of units used)
Use of devices for Video conferences:
(Electric power to use one device (kW)) × (Time of use (h)) × (Number of units used)]
(2) Network use
Energy consumption = (Energy consumption per amount of use) × (Amount used)
E.g.,
Use of networks:
(Apportioned [allocated] energy consumption per line (J)) × (Number of lines used)]
14
Example of Trial Calculation
(Video Conference)
Case 1
Case 2
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
Evaluation Result
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
The figure in ( ) is based on only
the “use” stage.
Reduction of 53% (91%)
Disposal
Use
Production
Conferencewith
on atravel
trip
Conference
Video conference
Energy Consumption(GJ/year)
Energy
Consumption(GJ/year)
Evaluation Result
The figure in ( ) is based on only
the “use” stage.
25
20
Reduction of 52% (59%)
15
Disposal
Use
Production
10
5
0
Conferencewith
on atravel
trip
Conference
Video conference
15
31 May, 2016
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
1616
Approach for reducing power consumption
based on DC power supply
- HVDC does not require as many power conversion steps with high system effectiveness.
- HVDC lowers drain and reduces facility cost.
Alternating current (AC)
1
2
AC/
DC
DC/
AC
Battery
-Higher efficiency
(fewer conversion stage)
-Higher reliability
(battery direct connecting)
15%
reduction
4 power conversion steps
Direct current (48-V type)
2 power conversion steps
4
1
AC/ DC/
DC DC CPU
AC/
DC
3
100 V AC
to 200 V AC
ICT equipment
2
Battery
Higher-voltage direct current (HVDC)
1
Rectifier
AC/
DC
2
Approx.
400 V DC
Battery
48 V DC
ICT equipment
DC/
DC CPU
ICT equipment
- Thinner cables
- Improved installation
flexibility
DC/
DC CPU
2 power conversion steps
17
Thank you for your Attention
18