Additional Information for
Reference Emissions

1

Setting default values to calculate reference emissions
Rationale for setting the default values to calculate reference emissions in the proposed
methodology is following.
1. COP of the reference air conditioning system
Reference emissions in this methodology are partly caused by electricity consumptions of air
conditioning system in the grocery store used for cooling the exhaust heat from the built-in typereference fridge-freezer showcase. Since the project fridge-freezer showcase is a separate type,
it releases the exhaust heat to the outside of the store and will not cause an additional load to theair conditioning system.
Based on the surveys in Indonesia, COP values of the reference air conditioning system in thegrocery stores to achieve net emission reductions have already been proposed and approved
alongside with ID_AM004.
Therefore, applying the same default vales in this methodology leads to achieve net emission
reductions.
2. Energy efficiency of the reference fridge-freezer showcase
2.1. Algorithm to calculate reference emissions
Reference emissions in this methodology are also caused by electricity consumptions of thebuilt-in type reference fridge-freezer showcase itself. The following algorithm is employed tocalculate such reference emissions of the reference fridge showcase. The same algorithm is also
applied for the reference freezer showcase.

Where;
RE୤୰୧ୢ୥ୣ,୮

PEC୤୰୧ୢ୥ୣ,୧,୮

ߟ୔୎,୤୰୧ୢ୥ୣ,୧

ߟୖ୉,୤୰୧ୢ୥ୣ,୧

EFୣ୪ୣୡ

i‫܀‬۳܎‫܍܏܌ܑܚ‬,‫ = ܘ‬෍ ቆ‫۾‬۳۱܎‫܍܏܌ܑܚ‬,ܑ,‫× ܘ‬ܑߟ‫۾‬۸,܎‫܍܏܌ܑܚ‬,ܑቇ × ۳۴‫܋܍ܔ܍‬ߟ‫܀‬۳,܎‫܍܏܌ܑܚ‬,ܑ: Reference emissions of the fridge showcase during the period p [tCO2/p]: Electricity consumption of the project fridge showcase i during the period p[MWh/p]: Energy efficiency of the project fridge showcase i [L/W]: Energy efficiency of the reference fridge showcase i [L/W]: CO2 emission factor for consumed electricity [tCO2/MWh]: Identification number of the fridge showcase [-]2.2. Product specification data considering the fridge-freezer showcase market in Indonesia22.2.1. Indonesian market
The following information regarding the fridge-freezer showcase market in Indonesia has beenacquired from the interviews with the fridge-freezer showcase manufactures selling theirproducts in Indonesia.
[Summary of interviews with fridge-freezer showcase manufactures and The Japan
Refrigeration and Air Conditioning Industry Association]
Companies interviewed: Company A, Company B, Company C and Company DMajor manufacturer names of fridge-freezer showcase especially for grocery store market
in Indonesia are Company A, Company B and Company C

Company A and Company B manufacture low-end to mid-range products, and Company C
manufactures mid-range to high-end products

Three main types of fridge-freezer showcase for grocery store in general meaning notIndonesia-specific:
Walk-in type

: Separate type

Reach-in type

: Both built-in type and separate type

Open type: Both built-in type and separate type

Reach-in type and open type are popular in Indonesia



Built-in type is preferred because the ambient temperature is always high in Indonesia andit will not help to improve energy efficiency of the separate type

Walk in type is usually separate type and is not popular in Indonesia

Company A only manufactures fridge showcases

Company B manufactures both fridge showcases and freezer showcases, however, capacityof the showcases are relatively small (less than 500L)

No regulations and voluntary programme or network to recover refrigerant in Indonesia

2.2.3. Survey on products data
Products data of fridge-freezer showcases from the companies with high market share has beensurveyed. As described, it is found that Company A only manufactures fridge showcases, andthat Company B manufactures both fridge showcases and freezer showcases, however, capacityof the showcases is relatively small (less than 500L).
As a result, appropriate data to determine the energy efficiencies of popular products inIndonesia has been collected only for two volume ranges (z < 900 and 900 ≦ z < 1,200) of
only one fridge type (Reach-in showcase).
Then, data have been collected for other manufacturers, Company C, Company D, Company E,
Company F and Company G to determine the energy efficiencies of the latest products sold in
the world for other volume ranges. Company D has just started their business in Indonesia, and3

Company E, Company F and Company G have not started showcase business yet, but theyoccupy good market share in the world and are well known as manufactures of fridge-freezer
showcase.
The collected data are listed in Table 1, Table 2 and Table 3.
There are some findings from the collected data.
Energy efficiency of the Turkish Company A products show lower energy efficiency thanthe other manufacturers’ products

Showcases with larger capacity (greater than or equal to 900L) tend to show higher
energy efficiency than smaller ones (less than 900L)

2.2.4. Conclusions
Based on the data collected and consideration, default values of the energy efficiency of thereference fridge showcase and freezer showcase have been decided with the reasoning below:
Showcases with high sales performance in Indonesia have been selected as reference
showcases, which are reach-in type fridge showcase with less than 900L from Company A
and reach-in type fridge showcase with greater than or equal to 900L and less than 1,200L
from Company A.

Other than those two categories, average of energy efficiency data collected from theJapanese manufactures been selected since they are the latest model, thus, showconservative values of energy efficiency.

[Default values]-Reach-in type fridge showcase
Range of volume (L)Energy efficiency (L/W)

z < 900

1.18

900 ≦ z < 1,200

1.08

1,200 ≦ z

2.24-Open type fridge showcase
Range of volume (L)Energy efficiency (L/W)

z < 9000.50

900 ≦ z < 1,200

0.65

1,200 ≦ z

0.73

4

-Reach-in type freezer showcase
Range of volume (L)Energy efficiency (L/W)

z < 9000.70

900 ≦ z < 1,200

0.70

1,200 ≦ z

1.01

5

Table 1. Collected data on reach-in type fridge showcases
Company A, Company B, Company C, Company D, Company E, Company F, Company G■Reac h- in type ̲Fridgel es s tha n 900L
Manufacture
ModelCompany A
A1Refrigerant
R134a
Performance temperature [degree2-10celcius]
Effective capacity [L]627

Rated power consumption [W] 533
Energy efficiency [L/W]

Average

1.18

1.18

g rea ter tha n or equa l to 900L a nd l es s tha n 1,200L
Manufacture
ModelCompany A
A2Refrigerant
R134a
Performance temperature [degree2-10celcius]
Effective capacity [L]936

Rated power consumption [W] 876
Energy efficiency [L/W]

Average

1.07

1.07

g rea ter tha n or equa l to 1,200L
Manufacture
Model

Company E
E1Company F
F1

Refrigerant
R404a
Performance temperature [degree-1-10celcius]

R404a-1-10

Effective capacity [L]

1,457

1,457

Rated power consumption [W] 600

710

Average

Energy efficiency [L/W]

2.05

2.24

2.43

6

Table 2. Collected data on open type fridge showcases■Open type̲ Fridgel es s than 900L
Manufacture

Company G

Company G

Company G

Company D

Company D

Company D

Company F

Company F

Company F

Model
Refrigerant

G1
R404a

G2
R404a

G3
R404a

D1
R404a

D2
R404aD3R404a

F8R404aF9R404aF10R404a

Performance temperature [degree2-10celcius]

2-10

2-10

0-22

0-22

0-22

5-20

5-20

5-20

Effective capacity [L]697
Rated power consumption [W] 1,100

506
1,150

759
1,193

402
1,026

603
1,080

870
1,453

400
990

525
1,242

800
1,880

Average

Energy efficiency [L/W]

0.44

0.64

0.39

0.56

0.60

0.40

0.42

0.43

0.50

0.63

g rea ter tha n or equa l to 900L a nd l es s tha n 1,200L
ManufactureCompany GCompany GCompany FModelRefrigerantG4R404a

G5R404a

F11R404a

Performance temperature [degree2-10celcius]

2-10

5-20

Effective capacity [L]1,046
Rated power consumption [W] 1,100

1,012
2,330

1,040
1,880

Average

Energy efficiency [L/W]

0.43

0.55

0.65

0.95

g rea ter tha n or equa l to 1,200L
Manufacture

Company G

ModelRefrigerant

G6
R404a

Performance temperature [degree2-10celcius]
Effective capacity [L]1,395

Rated power consumption [W] 1,919
Energy efficiency [L/W]

Average

0.73

0.737

Table 3. Collected data on reach-in type freezer showcases■Reach -in type ̲Free ze rl es s tha n 900L
Manufacture
ModelCompany CC1Company CCompany E

Company ECompany FCompany FCompany F

C2E2E3F2F3F4Refrigerant
R404a
Performance temperature [degree-20celcius]

R404a-20

R404a-20

R404a-20

R404a-20

R404a-20

R404a-20

Effective capacity [L]

635

643

860

860

643

777

466

Rated power consumption [W] 960

960

950

950

950

1,080

1,205

Average

Energy efficiency [L/W]

0.66

0.68

0.91

0.91

0.60

0.64

0.70

0.49g rea ter tha n or equa l to 900L a nd l es s tha n 1,200L
Manufacture

Company CCompany FCompany FC3F5F6Refrigerant
R404a
Performance temperature [degree-20celcius]

R404a-20

R404a-20

Effective capacity [L]

990

1,002

993

Rated power consumption [W] 1,970

1,210

1,310

Average

Energy efficiency [L/W]

0.83

0.76

0.70

Model0.50

g rea ter tha n or equa l to 1,200L
Manufacture
ModelRefrigerant

Company ECompany F

E4F7

R404a

R404a

Performance temperature [degree-20celcius]-20

Effective capacity [L]

1,329

1,329

Rated power consumption [W] 1,310

1,310

Average

Energy efficiency [L/W]

1.01

1.01

1.01

8