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Joint Crediting Mechanism Approved Methodology CL_AM002“Installation of Solar PV System and Storage Battery System”
A. Title of the methodology
Installation of Solar PV System and Storage Battery System, Version 01.0

B. Terms and definitions
TermsDefinitions

Solar photovoltaic (PV) system

An electricity generation system which converts sunlightinto electricity by the use of photovoltaic (PV) modules.
The system also includes ancillary equipment such as
inverters required to change the electrical current fromdirect current (DC) to alternating current (AC).

Storage battery system

The storage battery system which is consisted of power
converter(s) and connected group of battery cell charges
and discharges itself by converting electrical energy into
chemical energy.

Energy Management System

A computer-based system which monitors, controls, and(EMS)

optimizes the amount of electricity supplied.

C. Summary of the methodology
Items
GHG

emissionmeasures

Summary
reduction Displacement of grid electricity and/or captive electricity by
installation and operation of solar PV system(s) and storage
battery system(s).

Calculationofemissions

reference Reference emissions are calculated on the basis of the amountof the electricity displaced by the project multiplied by either:1) conservative emission factor of the grid, or 2) conservativeemission factor of the captive diesel power generator.

Calculation
emissionsofproject Project emissions are the emissions from the solar PV
system(s), the storage battery system(s), and EMS which are1

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assumed to be zero.
Monitoring parameters

The quantity of the electricity generated by the project solar PV
system(s), the quantity of the net electricity which the projectEMS supplies to the regional grid or captive power generator
which is displaced by the project solar PV system, and charge
and discharge amounts of the storage battery system(s) as
necessary depending on the selected option for calculation ofreference emissions.

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

The solar PV system(s) and storage battery system(s) are newly installed or
installed to replace existing storage battery system(s).

Criterion 2

The PV modules are certified for design qualifications (IEC 61215, IEC61646 or IEC 62108) and safety qualification (IEC 61730-1 and IEC 617302).

Criterion 3

The equipment to monitor output power of the solar PV system(s) andirradiance is installed at the project site.

Criterion 4

In the case of replacing existing storage battery system(s), a plan is preparedin which mercury used in the existing storage battery system(s) is not released
to the environment. Execution of the prevention plan is checked at the time ofverification, in order to confirm that mercury used for the existing one
replaced by the project one is not released to the environment.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Consumption of grid electricity and/or captive electricity

CO2Project emissions
Emission sources

GHG types

Generation of electricity from the solar PV system(s)N/AConsumption of electricity by storage battery system(s)N/AConsumption of electricity by EMS

N/A2

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F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
The default emission factor is set in a conservative manner for the Chilean regional grids: theNational Electricity System (SEN), the Aysén system, and the Magallanes system.
The emission factor is calculated based on the conservative operating margin that reflects on
the latest electricity mix including low cost/must run resources for each regional grid in Chileduring 2016-2018 and refers to the conservative emission factor of each fossil fuel power plantin order to secure net emission reductions. The conservative emission factor of each plant iscalculated to be 0.826 tCO2/MWh for coal-fired power plant and 0.364 tCO2/MWh for gasfired power plant based on the survey on heat efficiency of power plant in Chile. The emission
factor for diesel power plant is calculated to be 0.533 tCO2/MWh based on a default heatefficiency of 49%, an efficiency level which is above the value of the world’s leading diesel
power generators.
In case the solar PV system(s) in a proposed project activity is directly connected or connected
via an internal grid, not connecting to a captive power generator, to a regional grid (PV Case1), the value of operating margin including LCMR resources, using the best heat efficiency
among currently operational plants in Chile in calculating emission factors of fossil fuel power
plants, is applied. The emission factors to be applied in this case are shown as “PV Case 1” insection I of this methodology.
In the case the solar PV system(s) in a proposed project activity is connected to an internal gridconnecting to both a regional grid and a captive power generator (PV Case 2), the lower value
between emission factors shown as “PV Case 1” in section I of this methodology and theconservative emission factor of diesel-fired power plant of 0.533 tCO2/MWh is applied. Theemission factors to be applied in this case are shown as “PV Case 2” in section I of thismethodology.
In the case that the solar PV system(s) in a proposed project activity is connected to an internal
grid only connecting to a captive power generator (PV Case 3), the emission factor of a diesel
generator calculated by applying the heat efficiency of 49%, an efficiency level which is above
the value of the world’s leading diesel generator, which is set to 0.533 tCO2/MWh, is applied.

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The emission factors to be applied in each case are shown in Section I. Data and parameters
fixed ex ante of this methodology.

F.2. Calculation of reference emissions
For calculation of reference emissions, either Option1, Option2, Option3-1, Option3-2 orOption4 is selected in line with the monitoring parameters which can be monitored.
Option1:RE୮ = ෍൛EG୧,୮ × (1 − LR ୨ )ൟ × EFୖ୉୧,୨REp: Reference emissions during the period p [tCO2/p]

EGi,p: Quantity of the electricity generated by the project solar PV system i during theperiod p [MWh/p]

LRj: Loss ratio of charge and discharge on the project storage battery system j [-]EFRE: Reference CO2 emission factor for the project system [tCO2/MWh]i: Identification number of project solar PV system

j: Identification number of the project storage battery system

Option2:RE୮ = ෍൛EG୧,୮ − EC୧,୨,୮ × LR ୨ ൟ × EFୖ୉
୧,୨

REp

: Reference emissions during the period p [tCO2/p]EGi,p: Quantity of the electricity generated by the project solar PV system i during theperiod p [MWh/p]

ECi,j,p : Quantity of the electricity charged by the project solar PV system i to the projectstorage battery system j during the period p [MWh/p]
LRj: Loss ratio of charge and discharge on the project storage battery system j [-]EFRE : Reference CO2 emission factor for the project system [tCO2/MWh]
Option3-1 (In case the project storage battery system(s) is only charged by the project PVsystem(s)):
RE୮ = ෍൛EG୧,୮ − EC୧,୨,୮ + ED୨,୮ ൟ × EFୖ୉୧,୨4

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REp: Reference emissions during the period p [tCO2/p]EGi,p: Quantity of the electricity generated by the project solar PV system i during theperiod p [MWh/p]

ECi,j,p : Quantity of the electricity charged by the project solar PV system i to the projectstorage battery system j during the period p [MWh/p]
EDj,p: Quantity of the electricity discharged from the project storage battery system jduring the period p [MWh/p]

EFRE: Reference CO2 emission factor for the project system [tCO2/MWh]

Option3-2 (In case the project storage battery system(s) is charged by electricity sources
including the project solar PV system(s)):
RE୮ = ෍൛EG୧,୮ − EC୧,୨,୮ + ED୨,୮ × EC୧,୨,୮ ÷ ECA୨,୮ ൟ × EFୖ୉
୧,୨

REp

: Reference emissions during the period p [tCO2/p]EGi,p: Quantity of the electricity generated by the project solar PV system i during theperiod p [MWh/p]

ECi,j,p : Quantity of the electricity charged by the project solar PV system i to the projectstorage battery system j during the period p [MWh/p]
EFRE: Reference CO2 emission factor for the project system [tCO2/MWh]EDj,p: Quantity of the electricity discharged from the project storage battery system jduring the period p [MWh/p]

ECAj,p : Quantity of the electricity charged by all electricity sources to the project storage
battery system j during the period p[MWh/p]
Option4 (In case an EMS manages the quantities of electricity which the project solar PVsystem(s) supplies to the EMS, electricity which the EMS charges the project storage battery
system(s), electricity which the project storage battery system(s) discharges to the EMS andelectricity which the EMS supplies to the electricity system displaced by the project):RE୮ = ෍ NEG୧,୩,୮ × EFୖ୉୧,୩REp: Reference emissions during the period p [tCO2/p]

NEGi,k,p : Quantity of the net electricity which the project EMS k supplies to the regional gridor captive power generator which is displaced by the project solar PV system i during5

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the period p [MWh/p]
EFRE: Reference CO2 emission factor for the project system [tCO2/MWh]k: Identification number of the project EMS

G. Calculation of project emissions
PEp = 0PEp: Project emissions during the period p [tCO2/p]

H. Calculation of emissions reductions
ERp = REp − PEp= 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
EFRE

Description of dataSource

Reference emission factor of the regional grid The default emission
and/or captive power generator which is displaced factor is obtained from aby the project solar PV system.

study of electricity

The value for EFRE is selected from the list ofemission factors in the following manner:
PV Case 1: In case the solar PV system(s) in asystems in Chile and themost efficient diesel
power generator (49%heat efficiency).

proposed project activity is connected to a regional
grid including through internal grid which is not

Theconnected to a captive power generator, EFRE is set

revised6

default
ifvalue

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as follows per the connected regional grid:Regional grid name:necessary by the JC.

Emission factor for PV
Case 1:

SEN (National System)
Aysén System
Magallanes System

0.404 tCO2/MWh
0.176 tCO2/MWh
0.361 tCO2/MWh

PV Case 2: In case the solar PV system(s) in a
proposed project activity is connected to an internal
grid connected to both a regional grid and a captive
power generator, EFRE is set as follows per theconnected regional grid:Regional grid name:Emission factor for PV
Case 2:SEN (National System)
Aysén System
Magallanes System

0.404 tCO2/MWh
0.176 tCO2/MWh
0.361 tCO2/MWh

PV Case 3: In case the solar PV system(s) in a
proposed project activity is connected to an internal
grid which is not connected to the regional grid,
EFRE is set at 0.533 tCO2/MWh.

LRj

Loss ratio of charge and discharge on the project Specifications of projectstorage battery system j

storage battery system j

LR can be calculated by the following equation:‫ܴܮ‬௝ = 1 − ߮௖௛௔௥௚௘,௝ × ߮௖௢௡௩௘௥௧,௝߮௖௛௔௥௚௘,௝ : Charging efficiency of the project storage

battery system j [-]߮௖௢௡௩௘௥௧,௝ : Conversion efficiency of project storage
battery system j [-]7

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History of the document
VersionDate

Contents revised

01.0

4 December 2020

Electronic decision by the Joint Committee
Initial approval.

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