evaluation of co2 efficiency for product level · life cycle assessment (lca) environmental (eco)...

2nd International work shop on sustainable consumption, 13 Dec. 2003

Evaluation of Evaluation of CO2 efficiency CO2 efficiency

for product levelfor product levelNational Institute of Advanced Industrial National Institute of Advanced Industrial

Science and TechnologyScience and TechnologyResearch Center for Life Cycle AssessmentResearch Center for Life Cycle Assessment

Kiyotaka TAHARA Kiyotaka TAHARA Atsushi INABAAtsushi INABA

2nd International work shop on sustainable consumption, 13 Dec.2003

Our objective

IntroductionIntroductionLife Cycle Assessment (LCA)

Environmental (Eco) efficiency

To expand our concept to the product level

is a useful tool to evaluate the environmental aspects and potential impacts associated with a product and a service throughout its life span.

is an indicator which can be evaluated by comparing a product’s service value (or function) with its environmental loads.

Eco-Efficiency = Product or Service valueEnvironmental influenceEco-Efficiency = Product or Service valueEnvironmental influence

(at company and industry levels in 1st WS)

CO2 Efficiency = Economic indexCO2 emissionCO2 Efficiency = Economic indexCO2 emission


2003××○Matsushita Electric Works20

2002××○FUJIFILM19

2002××○KAGOME18

2003×××AEON17

2002×○○HITACHI16

2002××○SHARP15

2002×××AJINOMOTO14

2002○×○NEC13

2002○×○TOSHIBA12

2002○×○SONY11

2002××○KAO10

2002×○○Matsushita Electric Industrial9

2002○×○KIRIN BREWERY8

2002××○EPSON7

2002○×○ASAHI BREWERIS6

2002×××SAPPORO BREWERIS5

2003××○SUNTORY4

2002××○NISSAN3

2003××○HONDA2

2002○×○TOYOTA1

Company levelProduct levelyear

Eco efficiency / FactorLCA

Table Adoption of LCA and Eco efficiency in company


Our objective

IntroductionIntroductionLife Cycle Assessment (LCA)

Environmental (Eco) efficiency

To expand our concept to the product level

is a useful tool to evaluate the environmental aspects and potential impacts associated with a product and a service throughout its life span.

is an indicator which can be evaluated by comparing a product’s service value (or function) with its environmental loads.

Eco-Efficiency = Product or Service valueEnvironmental influenceEco-Efficiency = Product or Service valueEnvironmental influence

(at company and industry levels in 1st WS)

CO2 Efficiency = Economic indexCO2 emissionCO2 Efficiency = Economic indexCO2 emission


Company， Industry A

Company，Industry D

Company，Industry C

Company，Industry B

Product

Direct CO2 emissionIndirect CO2 emission

Net sell, ProducerNet sell, Producer’’s Prices PriceCostCost

Gross incomeGross incomeGross valueGross value--added added

Fig. Concept of CO2 efficiency for industry and company level

Total CO2 efficiency = Producer’s PriceTotal CO2 emissions

Direct CO2 efficiency = Gross value-addedDirect CO2 emissions

Indirect CO2 efficiency = CostIndirect CO2 emissions

(2)

(1)

(3)


0

500

1,000

1,500

2,000

2,500

3,000

3,500

CO

2 E

ffici

ency

[yen

/kg-

CO

2] Total CO2 Efficiency(Producer Price/Direct and Indirect CO2 emission)

Fig. The Total CO2 Efficiency (Producer Price / Direct and Indirect CO2 emission) for each Industrial Sector

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CO2 emission

Producer’s Price

Cost

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Average CO2 efficiency of upstream Industry

CO2 efficiency of Industry A


0

5,000

10,000

15,000

20,000

25,000

CO

2 E

ffici

ency

[yen

/kg-

CO

2]

Direct CO2 Efficiency(Gross value-added/Direct CO2 emission)

Act

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Fig. The Direct CO2 Efficiency (Gross value-added / Direct CO2 emission) for each Industrial Sector

servicemanufacturing

CO2 emission

Producer’s Price

Cost

Price

Gross value-added





0

100

200

300

400

500

600

700

CO

2 E

ffici

ency

[yen

/kg-

CO

2]

Indirect CO2 Efficiency(Cost/Indirect CO2 emission)

Fig. The Indirect CO2 Efficiency (Cost / Indirect CO2 emission)for each Industrial Sector

Act

iviti

es n

ot e

lsew

here

cla

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CO2 emission

Producer’s Price

Cost

Price

Gross value-added





Materials

Energy

parts

Product

SteelPlastics

Assemble

Paper. . .


PricePriceCostCost

ElectricityHeavy oil

.

.

. Gross valueGross value--added, Gross Incomeadded, Gross Income

Fig. Concept of CO2 efficiency for product level


-500

0

500

1,000

1,500

2,000

2,500

3,000

3,500

Copy-A

Copy-B

Copy-C

Copy-D

Copy-E

Copy-F

Copy-G

Copy-H

Copy-I

Copy-J

Copy-K

Copy-L

Copy-M

Copy-N

CO

2 em

issi

on [k

g-C

O2]

Disposal & RecycleUseTransportPartsMaterial

Fig. CO2 emission of copy machine


Fig. Total CO2 efficiency of Copy machine

0

500

1,000

1,500

2,000

2,500

3,000

3,500

Copy-A

Copy-B

Copy-C

Copy-D

Copy-E

Copy-F

Copy-G

Copy-H

Copy-I

Copy-J

Copy-K

Copy-L

Copy-M

Copy-N

Tota

l CO

2 ef

ficie

ncy

[JP

Y/k

g-C

O2]


Fig. Total CO2 efficiency of Quick snap

0

200

400

600

800

1,000

1,200

Quick S

nap-A

Quick S

nap-B

Quick S

nap-C

Quick S

nap-D

Quick S

nap-E

Quick S

nap-F

Quick S

nap-G

Quick S

nap-H

Quick S

nap-I

Quick S

nap-J

Quick S

nap-K

Quick S

nap-L

Tota

l CO

2 ef

ficie

ncy

[JP

Y/k

g-C

O2]


Materials

Energy

parts

Product

SteelPlastics

Assemble

Paper. . .


PricePriceCostCost

ElectricityHeavy oil

.

.

. Gross valueGross value--added, Gross Incomeadded, Gross Income

Fig. Concept of CO2 efficiency for product level


0

500,000

1,000,000

1,500,000

2,000,000

2,500,000

3,000,000

3,500,000

0 50 100 150 200 250 300 350 400Weight [kg]

Mon

etar

y va

lue

[JP

Y]

Material costPrice

Fig. Relation between product weight and monetary value of Copy machine


0

200

400

600

800

1,000

1,200

1,400

1,600

0.090 0.091 0.092 0.093 0.094 0.095 0.096 0.097 0.098 0.099 0.100Weight [kg]

Mon

etar

y va

lue

[JP

Y]

PriceMaterial cost

Fig. Relation between product weight and monetary value of Quick snap


0

200

400

600

800

1,000

1,200

1,400

1,600

1,800

0 50 100 150 200 250 300 350 400Weight [kg]

CO

2 em

issi

on [k

g-C

O2]

Material originateProduct originate

Fig. Relation between product weight and CO2 emission of Copy machine


0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

0.090 0.091 0.092 0.093 0.094 0.095 0.096 0.097 0.098 0.099 0.100Weight [kg]

CO

2 em

issi

on [k

g-C

O2]

Material originateProduct originate

Fig. Relation between product weight and CO2 emission of Quick snap


0

5,000

10,000

15,000

20,000

25,000

Copy-A

Copy-B

Copy-C

Copy-D

Copy-E

Copy-F

Copy-G

Copy-H

Copy-I

Copy-J

Copy-K

Copy-L

Copy-M

Copy-N

Dire

ct C

O2

effic

ienc

y [J

PY/k

g-C

O2]

Fig. Direct CO2 efficiency of Copy machine


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

Quick S

nap-A

Quick S

nap-B

Quick S

nap-C

Quick S

nap-D

Quick S

nap-E

Quick S

nap-F

Quick S

nap-G

Quick S

nap-H

Quick S

nap-I

Quick S

nap-J

Quick S

nap-K

Quick S

nap-L

Dire

ct C

O2

effic

ienc

y [J

PY/k

g-C

O2]

Fig. Direct CO2 efficiency of Quick snap


0.0

0.2

0.4

0.6

0.8

1.0

1.2

Copy-A

Copy-B

Copy-C

Copy-D

Copy-E

Copy-F

Copy-G

Copy-H

Copy-I

Copy-J

Copy-K

Copy-L

Copy-M

Copy-N

CO

2 em

issi

on [g

-CO

2/sh

eet]

Fig. CO2 emission of use stage per 1 sheet


Fig. CO2 emission of copy machine C&D

-200

0

200

400

600

800

1,000

Copy-C Copy-D

CO

2 em

issi

on [k

g-C

O2]

Dispersal & Recycle

Use

Transport

Parts

Material


ConclusionConclusion• In order to expand the concept of

CO2 efficiency to the product level, we calculated the total CO2 efficiency and the direct CO2 efficiency using cases of the type III label.

• Problems remain with the calculation method of the economic value.

2nd International work shop on sustainable consumption, 13 Dec. 2003

Evaluation of Evaluation of CO2 efficiency CO2 efficiency

for product levelfor product levelNational Institute of Advanced Industrial National Institute of Advanced Industrial

Science and TechnologyScience and TechnologyResearch Center for Life Cycle AssessmentResearch Center for Life Cycle Assessment

Kiyotaka TAHARA Kiyotaka TAHARA Atsushi INABAAtsushi INABA

evaluation of co2 efficiency for product level · life cycle assessment (lca) environmental (eco)...

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