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Joint Crediting Mechanism Approved Methodology ID_AM021“Electricity generation by rehabilitation of run-of-river hydro power generation system(s)in Indonesia”
A. Title of the methodology
Electricity generation by rehabilitation of run-of-river hydro power generation system(s) inIndonesia, ver1.0

B. Terms and definitions
Terms

Definitions

Run-of-river hydro power A method of power generation that uses water running in a rivergeneration

or a waterway directly into power generation unit.

Rehabilitation

A method to restore existing hydro power generations system(s)with or without adding new power plants and/or units, which may
increase power generation capacity.

C. Summary of the methodology
Items

Summary

GHG emission reduction Displacement of grid electricity including national/regional andmeasuresisolated grids and/or captive electricity by rehabilitation of hydropower generation system(s).

Calculation of reference Reference emissions are calculated with the net electricity output
emissionsof the hydro power generation system(s), maximum output ofreference hydro power generation system(s), maximum output ofproject hydro power generation system(s), multiplied by either; 1)
conservative emission factor of the grid, or 2) conservativeemission factor of the captive diesel power generator based on thelocation of the projects.

Calculationofproject Project emissions are the emissions from the hydro poweremissions

generation system(s), which are assumed to be zero.

Monitoring parameters

The quantity of the net electricity generated by the project hydro1

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power generation system(s).

D. Eligibility criteria
This methodology is applicable to projects that satisfy all of the following criteria.
Criterion 1

The project increases the power generation capacity of an existing run-of-riverhydro power generation system(s) by rehabilitation.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Consumption of grid electricity including national/regional and CO2
isolated grids and/or captive electricity
Project emissions
Emission sources

GHG types

Generation of electricity from the hydro power generation system(s)N/AF. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated by the amount of net electricity generated by the projecthydro power generation system(s), the maximum output of the reference hydro powergeneration system(s), the maximum output of the project hydro power generation system(s),and CO2 emission factors of grid electricity including national/regional and isolated grids
and/or captive electricity, which is displaced by the project.
The default emission factor is set in a conservative manner for the Indonesian regional grids.
The default emission factor is calculated based on the conservative operating margin thatreflects on the latest electricity mix including low cost/must run (LCMR) resources for eachregional grid in Indonesia during the year 2013-2015 and refers to the conservative emission
factor of each fossil fuel power plant in order to secure net emission reductions. The
conservative emission factor of each plant is calculated as 0.795 tCO2/MWh for coal-fired
power plant and 0.320 tCO2/MWh for gas-fired power plant based on the survey on heat2

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efficiency of power plant in Indonesia. The emission factor for diesel power plant is calculated
as 0.533 tCO2/MWh based on a default heat efficiency of 49%, an efficiency level which isabove the value of the world’s leading diesel power generators.
In case the hydro power generation plant in a proposed project activity is directly connected orconnected via an internal grid, not connecting to either an isolated grid or a captive power
generator, to a national/regional grid (Case 1), the value of operating margin including LCMR
resources, calculated using the best heat efficiency among currently operational plants inIndonesia for the emission factors of fossil fuel power plants, are applied. The emission factors
to be applied are set as “Emission factor for Case 1 (tCO2/MWh)” as shown in Section I. below.
In case the hydro power generation system(s) in a proposed project activity is connected to aninternal grid connecting to both a national/regional, and an isolated grid and/or a captive powergenerator (Case 2), the lower values between emission factors of “Emission factor for Case 1(tCO2/MWh)” and the conservative emission factors of diesel-fired power plant of 0.533
tCO2/MWh is applied. The emission factors to be applied are set as “Emission factor for Case
2 (tCO2/MWh)” as shown in Section I. below.
In the case that the hydro power generation system(s) in a proposed project activity is only
connected to an internal grid connecting to an isolated grid and/or a captive power generator(Case 3), the emission factor of a diesel generator calculated by applying a default heatefficiency of 49%, an efficiency level which is above the value of the world’s leading diesel
generator is applied, which is set as 0.533 tCO2/MWh.
The emission factors to be applied for each case are shown in Section I.

F.2. Calculation of reference emissions

RE୮ = ෍{EG୧,୮ × ቆ1 −MOୖ୉,୧ቇ × EFୖ୉,୧ }MO୔୎,୧

REp

୧

EGi,p: Quantity of the net electricity generated by the project hydro power generation: Reference emissions during the period p [tCO2/p]
system i during the period p [MWh/p]

MORE,i : Maximum output of the reference hydro power generation system i [MW]MOPJ,i : Maximum output of the project hydro power generation system i [MW]EFRE,i : Reference CO2 emission factor for the project hydro power generation system i3

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G. Calculation of project emissions
PE୮ = 0PEp

: Project emissions during the period p [tCO2/p]

H. Calculation of emissions reductions
ER ୮ = RE୮ − PE୮= REp

ERp: Emission reductions during the period p [tCO2/p]

REp: Reference emissions during the period p [tCO2/p]

PEp: Project emissions during the period p [tCO2/p]

I. Data and parameters fixed ex ante
The source of each data and parameter fixed ex ante is listed as below.
Parameter
MORE,i

Description of data

SourceMaximum output of reference hydro power

Specifications ofgeneration system i.

reference hydro power
generation system i.

MOPJ,iMaximum output of project hydro power generation

Specifications of projectsystem i.

hydro power generation
system i.

EFRE,i

Reference CO2 emission factor for the project hydroAdditional information

power generation system i.

The default emission
factor value is obtained

The value for EFRE,i is selected from the emission from a study offactor based on the national/regional grid (EFRE,grid) or electricity systems inbased on isolated grid and/or a captive diesel power Indonesia and the mostgenerator (EFRE,cap) in the following manner:
In case the hydro power generation system(s) in a4

efficient diesel power
generator (a default

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proposed project activity is directly connected, or value of 49% heat
connected via an internal grid not connecting to either efficiency is above thean isolated grid or a captive power generator, to a value of the world’s
national/regional grid (Case 1), EFRE,grid is set as leading diesel
follows:generator).

Jamali grid
Sumatra grid
Batam – Bintan gridTanjung Balai Karimun,Tanjung Batu, Kelong, Ladan,Midai, P Buru, Ranai,
Sedanau, and Tarempa grids
Bangka, Belitung, S Nasik,
and Seliu grids
Khatulistiwa grid
Barito grid
Mahakam grid
Tarakan grid
Sulutgo grid
Sulselbar gridKendari, Bau Bau, Kolaka,
Lambuya, Wangi Wangi, andRaha grids
Sulbangteng gridLombok, Bima, and Sumbawa
grids
Kupang, Ende, Maumere,Waingapu, Labuan Bajo, andLarantuka grids
Ambon, Tual, and Namlea
grids
Tobelo and Ternate Tidore
grids
Jayapura, Timika, Merauke,
and Biak grids
Sorong, Nabire, andManokwari grids

0.616 tCO2/MWh
0.477 tCO2/MWh
0.664 tCO2/MWh
0.555 tCO2/MWh

0.553 tCO2/MWh
0.532 tCO2/MWh
0.666 tCO2/MWh
0.527 tCO2/MWh
0.493 tCO2/MWh
0.325 tCO2/MWh
0.320 tCO2/MWh0.593 tCO2/MWh
0.517 tCO2/MWh0.561 tCO2/MWh0.507 tCO2/MWh
0.533 tCO2/MWh
0.532 tCO2/MWh
0.523 tCO2/MWh
0.525 tCO2/MWh

In case the hydro power generation system(s) in a
proposed project activity is connected to an internal
grid connecting to both a national/regional grid, andan isolated grid and/or a captive power generator(Case 2), EFRE,grid is set as follows:
Jamali – Bintan grid
Sumatra grid
Batam gridTanjung
Balai
Karimun,0.533 tCO2/MWh
0.477 tCO2/MWh
0.533 tCO2/MWh
0.533 tCO2/MWh5The default value isrevised if deemednecessary by the JC.

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Tanjung Batu, Kelong, Ladan,Midai, P Buru, Ranai, Sedanau,and Tarempa grids
Bangka, Belitung, S Nasik, andSeliu grids
Khatulistiwa grid
Barito grid
Mahakam grid
Tarakan grid
Sulutgo grid
Sulselbar gridKendari, Bau Bau, Kolaka,
Lambuya, Wangi Wangi, andRaha grids
Sulbangteng grid
Lombok, Bima, and Sumbawa
grids
Kupang,Ende,Maumere,
Waingapu, Labuan Bajo, andLarantuka grids
Ambon, Tual, and Namlea grids
Tobelo and Ternate Tidore grids
Jayapura, Timika, Merauke, andBiak grids
Sorong, Nabire, andManokwari grids

0.533 tCO2/MWh0.532 tCO2/MWh0.533 tCO2/MWh0.527 tCO2/MWh
0.493 tCO2/MWh
0.325 tCO2/MWh
0.320 tCO2/MWh0.533 tCO2/MWh0.517 tCO2/MWh
0.533 tCO2/MWh0.507 tCO2/MWh
0.533 tCO2/MWh
0.532 tCO2/MWh0.523 tCO2/MWh0.525 tCO2/MWh

In case the hydro power generation system(s) in a
proposed project activity is connected to an internal
grid which is not connected to a national/regionalgrid, and only connected to an isolated grid and/or acaptive power generator (Case 3), EFRE,cap: 0.533
tCO2/MWh is applied.
History of the document
Version01.0

Date

Contents revised

31 October 2019 JC9, Annex 2
Initial approval.

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