Transcript Sector: Energy

CGE
Greenhouse Gas Inventory
Hands-on Training Workshop
UNFCCC – NAI SOFTWARE
Sector: Energy
Practical Aspects and Exercises
1
6.1
CONTENT


Details on use of the UNFCCC – NAI Software to
calculate and report GHG emissions in the
Energy sector.
Practical exercises (to be solved by the
participants after the presentation).
2
6.2
BACKGROUND



The decision trees in the IPCC good practice
guidance are used to choose a good practice
method that suits national circumstances.
The UNFCCC-NAI Software contains, basically, the
methods of lesser complexity that countries can
use to prepare their inventories.
However, in principle, the software can be used to
report the estimated emissions independently of
the complexity of method used (Tier 2, 3, etc).
3
6.3
Sector: Energy
Sector 1: Energy
Source Categories and Subcategories
CO2 From Fuel Combustion (Reference Approach)
CO2 From Fuel Combustion - By source categories (sub-sectors)
CO2.Transport (by category of transport and type of fuel)
Non-CO2 From Fuel Combustion - By source categories (sub-sectors) and gases
SO2 From Fuel Combustion - By source categories (sub-sectors)
Emissions From Aircraft - Tier 2. By domestic and international aircraft type
Methane Emissions From Coal Mining and Handling
Methane Emissions from Oil and Gas Activities
Worksheets
1-1s1 to 1-1s5 and 1-1a (3)
1-2S1 to 1-2s16 and 1-2a 1-2
Overview (21) (*)
1-2s5 to 1-2s6
1-3s1 to 1-3s3 (11)
1-4s1 to 1-4s5 (5) (**)
1-5s1 to 1-5s3 (3) (9)
1-6s1 (1) (***)
1-7s1 (IPCC, 1996) or 1-7s2 (GPG,
2000) (2) (****)
1-8s1- 1-8s4 (4)
Ozone Precursors and SO2 from Oil Refining
(#) Quantity of sheets
Changes in the worksheets with respect to the IPCC Software
The current software provides two copies of sheets 3-4, 9-10, 15-15 to facilitate calculation separately of the emissions from
*
autogeneration (A) and process heat (B). Several modifications were made in the sheet 1-2 Overview to reduce sources of
potential errors and to create an automatic link with sheet 1-3s1 (in the IPCC software it was filled manually).
The current software provides a copy of sheet 1-4 for each sub-sector so that SO2 emissions can be calculated separately by
**
sub-sectors without inserting new sheets manually.
*** New columns were inserted for taking into account methane that was recovered or flared.
**** The current software provides two options (sheet 1-7s1 from IPCC1996 or sheet 1-7s2 from GPG2000). It also contains more
detailed emissions sub-categories. Please only fill either sheet 1-7s1 or sheet 1-7s2.
4
6.4
SECTOR: ENERGY
Fuel Combustion: CO2 Reference Approach
SECTOR: ENERGY: FUEL COMBUSTION (1)
MAIN CATEGORIES
CO2 From Fuel
Combustion (Reference
Approach)
UNFCC - NAI
SOFTWARE
Worksheets
1-1s1 to 1-1s5 and 1-1a
(6)
Remarks
- If fuel supply statistics are available then there are no
difficulties in estimating emissions using the Reference
Approach and the software.
- It is recommended to always include the calculation with
the Reference Approach although another more rigorous
method is also used.
- The Reference Approach provides only aggregate
estimates of emissions by fuels (stationary combustion
emissions cannot be distinguished from mobile combustion
emissions).
5
6.5
SECTOR: ENERGY
Fuel Combustion: CO2 by Source Categories
SECTOR: ENERGY: FUEL COMBUSTION (2)
MAIN
UNFCC - NAI
CATEGORIES SOFTWARE
Worksheets
CO2 From Fuel
Combustion
- By source
categories
(sub-sectors)
1-2S1 to 1-2s16
and 1-2a 1-2
Overview (21)
Remarks
Tier 1: Sectoral Approach
- If estimates for fuel combusted by source category are available then there
are no difficulties in obtaining emissions by sector using the software.
Alert: Attention should be paid when incorporating in Worksheets 1-2s1 to
1-2s16 other types of fossil fuels (liquid, solid or gas) not included in the
listing of the software. These other fuels are compiled in Worksheet 1-2
Overview as are additional fuels.
1. In the current software, three columns (AO to AQ) were inserted and
they should be filled manually.
2. If you use columns AG to AK to specify the combustion of other
(additional) fuels, then aggregate these other fuels here into solid, liquid
and gaseous.
3. These other fuels are linked automatically to the totals in Worksheet 1-2
Overview and to appropriate cells in Worksheet 1-3s1.
6
6.6
SECTOR: ENERGY
Fuel Combustion: CO2 by Source Categories
SECTOR: ENERGY: FUEL COMBUSTION (3)
MAIN
UNFCCC - NAI
CATEGORIES
SOFTWARE
Worksheets
CO2 From Fuel
Combustion
- By source
categories
(sub-sectors)
Remarks
1-2S1 to 1-2s16 and
1-2a 1-2 Overview
(21)
Alert:
1. Although the country doesn't consume some of the fuels included
in the software, these should not be substituted by other fuels
used in the country and that don't appear in the listing (it could
(1-2s7-1-2s8) for
introduce error in Worksheet 1-2, assigning the contributions
International Bunkers
from these fuels to an erroneous column).
2. The other fossil fuels should be incorporated at the end of the
listing in the empty lines or by incorporating new lines if
necessary.
3. Remember that for trade fuels it is good practice to obtain the
carbon content and net calorific values of the fuels from fuel
suppliers and use local values wherever possible.
7
6.7
SECTOR: ENERGY
Fuel Combustion: CO2 (bottom-up)
SECTOR: ENERGY: FUEL COMBUSTION (3) (cont)
MAIN
UNFCC - NAI
Tier 2
CATEGORIES SOFTWARE
Method
Tier 1:
Worksheets
CO2 From Fuel 1-2S1 to 1-2s16
- Detailed
Combustion
and 1-2a 1-2
Combustion
- By source
Overview (18)
Technology-Based
categories
Approach (bottom
(sub-sectors)
(1-2s7-1-2s8) for up).
International
Bunkers
Remarks
- The software doesn't include the possibility to apply the
detailed combustion Technology-Based Approach.
Suggestions: If that approach is used in substitution of
the Sectoral method, then:
1. Make the calculations outside of the software;
2. Incorporate the results manually in the Sectoral
Table and the Summary Tables of the Inventory,
3. Add a note in the information box of Worksheets
1-2s1-6 clarifying the method used and results
obtained. Provide detailed information in the NIR.
8
6.8
SECTOR: ENERGY
Exercise 1.1: CO2 by Source Categories Tier 1 (I)
Country A: Year: 2000. Worksheet 1-2s12 Residential Sector
Data
 The National Statistics Office provided the amount and type of
fuel combusted in the Residential Sector during the year 2000.
These data are included in the following table.
Fuel
Other
Kerosene
LPG
Heating Oil A
Consumption
(kt)
625
97.2
200
9
6.9
SECTOR: ENERGY
Exercise 1.1: CO2 by Source Categories Tier 1 (II)
Other Data:

Use the following values for the calculation:
Fuel
Other
Kerosene
LPG
Heating Oil A
Conversion
factor (TJ/kt)
43.8
47.6
40.9
Carbon EF
(tC/TJ)
19.6
17.2
18.0
10
6.10
SECTOR: ENERGY
Exercise 1.1: CO2 by Source Categories Tier 1 (III)
Tasks
Using the UNFCCC–NAI Software:
1. Calculate CO2 emissions Tier 1 method (Sectoral Approach).
2. Verify if consumption and emissions are correctly located in
Worksheet 1-2 Overview. If the location is not correct modify it.
3. Verify the emissions report in the Sectoral and Summary Tables.
4. Fill the Table 8A (Overview Table) for the self evaluation of quality and
completeness.
5. Print the worksheet used, the Sectoral Summary Table and the
Overview Table (8A).
11
6.11
SECTOR: ENERGY
Exercise 1.1: CO2 by Source Categories Tier 1 (IV)
Steps
1. Open the software and select in the Energy sector Worksheet 1-2s12
Residential Sector.
2. Enter in Column A the amount of each fuel consumed.
3. Enter in Column B the conversion factor to convert to terajoules.
4. Enter in Column D the Carbon Emission Factor.
5. Enter in Column J values for Fraction of Carbon Oxidized.
6. Estimate CO2 emission.
7. Go to Worksheet 1.2 and verify the value and location of consumption
and emission estimated.
8. Go to the Sectoral and Summary Report Tables and verify the location
and value of reported emission.
12
6.12
Additional fuel
Not included in the
list of fuels
CO2
EMISSIONS
13
6.13
CONSUMPTION
AND EMISSION
FOR
ADDITIONAL
FUELS
FILLED
MANUALLY
CONSUMPTION
AND CO2
EMISSIONS
FOR THE
FUELS
INCLUDED IN
THE LIST
TOTAL
CONSUMPTION
AND CO2
EMISSIONS
14
6.14
SECTORAL REPORT FOR ENERGY
REPORT OF ESTIMATED EMISSION IN THE
RESIDENTIAL SECTOR
15
6.15
SECTORAL REPORT FOR ENERGY
REPORT OF TOTAL ESTIMATED EMISSIONS IN
THE ENERGY SECTOR AND FUEL COMBUSTION
ACTIVITIES
16
6.16
REPORT OF EMISSION ESTIMATE IN THE
SUMMARY REPORT TABLE
SUMMARY REPORT TABLE 7As1
17
6.17
REPORT OF EMISSION ESTIMATE IN THE SHORT
SUMMARY REPORT TABLE
SHORT SUMMARY REPORT TABLE
18
6.18
SECTOR: ENERGY
Fuel Combustion: CO2 Transport Tier 1
SECTOR: ENERGY: FUEL COMBUSTION (4)
MAIN
UNFCCC - NAI
CATEGORIES
SOFTWARE
Tier 1: Worksheets
CO2 From Fuel
Combustion
1-2S5 to 1-2s6
- Transport
(by category of
transport and type of
fuel)
Remarks
Transport. Tier 1:
- If activity data are available then there are no difficulties in calculating
the emissions with the software. To do this it is necessary to obtain the
consumption of fuels by type and by major transport activity, i.e. road,
air, rail and ship.
- CO2 emissions are best calculated on the basis of the amount and type
of fuel combusted and its carbon content.
- However, because road transport and aviation account for the majority
of mobile-source fuel consumption, greater priority has been given to
these.
Alert:
 The main concern is to avoid double counting of agricultural and
off-road vehicles.
 Road transport includes use of agricultural vehicles on highways,
but excludes other mobile sources reported in 1A4 Other Sectors:
Agricultural/Forestry/Fishing (vehicles of traction, domestic
inland, coastal and deep sea fishing, etc).
19
6.19
SECTOR: ENERGY
Fuel Combustion: CO2 Road Transport Tier 1
SECTOR: ENERGY: FUEL COMBUSTION (5)
MAIN
UNFCCC - NAI
Tier 2
CATEGORIES SOFTWARE
Methods
Tier 1:
Worksheets
CO2 From Fuel 1-2S5 to 1-2s6
Tier 2 (bottom-up
Combustion
approach)
Tier 1 (or topdown approach)
by fuel type
Remarks
Road Transport
- Because road transport and aviation account for the
majority of mobile-source fuel consumption, greater
priority has been given to these.
Tier 1: If the amount by type of fuel combusted in road
transport is available there are no difficulties in obtaining
the emissions using the software, using country-specific
or default emissions factors.
- It is good practice to calculate CO2 emissions on the
basis of fuel consumption statistics using the Tier 1
approach.
Alert: The main concern is to avoid double counting of
agricultural and off-road vehicles. In Road transport
includes the use of agricultural vehicles on highways, but
excludes other mobile sources that are reported in 1A4
Other Sectors (traction vehicles, etc).
20
6.20
SECTOR: ENERGY
Fuel Combustion: CO2 Road Transport Tier 2
SECTOR: ENERGY: FUEL COMBUSTION (6)
MAIN
UNFCCC - NAI
Tier 2
CATEGORIES SOFTWARE
Methods
Tier 1:
Worksheets
CO2 From Fuel 1-2S5 to 1-2s6
Tier 2 (bottom-up
Combustion
approach)
Remarks
Road Transport: Tier 2
- It is also good practice to use the Tier 2 approach in
parallel with Tier 1.
- With the Tier 2 approach it is not possible to
calculate the emissions using the software. This
approach requires much more information (fuel
consumed by vehicle and fuel type, number of vehicles
by type, km traveled annually per vehicle, average liters
consumed by km traveled, etc).
- Emissions are estimated multiplying fuel consumption
by an emission factor for the fuel type and vehicle type.
Suggestion: If that approach is used in substitution of
the Tier 1 method, then: 1) Make the calculations outside
of the software; 2) Incorporate the results manually in the
Sectoral Table and the Summary Tables of the Inventory,
3) Add a note in the documentation boxes of Tables
1-2s5-1-5s6 clarifying the method used and results
obtained. Provide detailed information in the NIR.
21
6.21
SECTOR: ENERGY
Fuel Combustion: Non-CO2 by Source Categories Tier 1
SECTOR: ENERGY: FUEL COMBUSTION (7)
MAIN
UNFCCC – Tier 2 Methods
Remarks
CATEGORIES
NAI
SOFTWARE
Tier 1:
Worksheets
Non-CO2 From Fuel 1-3s1 to 1-3s3 - Stationary
Tier 1: If activity data are available then there are no
combustion
(11)
combustion by
difficulties in using the software to obtain the emissions.
- By source
CH4
sub-source
categories
N2O
categories/
(sub-sectors)
NOx
technology type
CO
and country
NMVOC
specific/regional
or IPCC default
Tier 2 emission
factor.
22
6.22
SECTOR: ENERGY
Fuel Combustion: Non-CO2 Emissions Tier 2
SECTOR: ENERGY: FUEL COMBUSTION (7) (cont)
MAIN
UNFCCC - Tier 2 Methods
CATEGORIES
NAI
SOFTWARE
Tier 1:
Worksheets
Non-CO2 From Fuel 1-3s1 to 1-3s3 - Stationary
combustion
(11)
combustion by
- By source
CH4
sub-source
categories
N2O
categories/
(sub-sectors)
NOx
technology type
CONMVOC
and country
specific/regional
or IPCC default
Tier 2 emission
factor.
Remarks
Tier 2: The software doesn't include the possibility to
apply the detailed combustion approach by sub-sources,
technologies, etc.
Suggestion: If that approach is used in substitution of
the Sectoral method, then: 1) make the calculations
outside of software, 2) incorporate the results manually
in the Sectoral Table and the Summary Tables of the
Inventory, 3) add notes in the information boxes of
Tables 1-3S1-1-13s3 clarifying the method used and
results obtained. Provide detailed information in the
NIR.
23
6.23
SECTOR: ENERGY
Exercise 1.2: Non-CO2 by Source Categories Tier 1 (I)
Country A: Year: 2000. Worksheets 1-3 Residential Sector
Tasks
Using the UNFCCC-NAI Software and the data from exercise 1.1:
1. Calculate Non-CO2 emissions using the Tier 1 method (Sectoral
Approach).
2. Verify the emissions report in the Sectoral and Summary
Tables.
3. Fill Table 8A (Overview Table) for the self evaluation of quality
and completeness.
4. Print the worksheet used, the Sectoral Summary Table and the
Overview Table (8A)
24
6.24
SECTOR: ENERGY
Exercise 1.2: Non-CO2 by Source Categories Tier 1 (II)
Steps
1. Begin after the steps given in exercise 1.1
2. Go to Worksheet 1.3s1 and verify if the fuel consumption
previously reported in the Residential Sector is already
included (it comes from 1-2 Overview).
3. Estimate emission factor (EF) for each fuel per sector.
4. Enter the EF for each fuel and activity in columns B1 to B6
(in this exercise only for the Residential Sector).
5. The software makes the emission calculation (for each
fuel, activity and total).
25
6.25
SECTOR: ENERGY
Exercise 1.2: Non-CO2 by Source Categories Tier 1 (III)
Other Data:

Use the following default EF (oil/residential sector) for the calculation:
Gas
EF (kg/TJ)
CH4
10
N2O
0.6
NOx
100
CO
20
NMVOC
5
26
6.26
FUEL CONSUMPTION REPORTED FOR
THE RESIDENTIAL SECTOR
SHEET 1-3s1
27
6.27
DEFAULT CH4 EF FOR OIL
CH4 EMISSION
28
6.28
TABLE SECTORAL REPORT FOR ENERGY
NON CO2 EMISSIONS IN THE RESIDENTIAL SUB SECTOR
29
6.29
REPORT OF EMISSION ESTIMATES IN THE
SUMMARY REPORT TABLE
SUMMARY REPORT TABLE 7As1
30
6.30
REPORT OF EMISSION ESTIMATES IN THE SHORT
SUMMARY REPORT TABLE
SHORT SUMMARY REPORT TABLE
31
6.31
SECTOR: ENERGY
Fuel Combustion - Transport: Non-CO2 Emissions Tier 1
SECTOR: ENERGY: FUEL COMBUSTION (8)
MAIN
UNFCCC – NAI
CATEGORIES
SOFTWARE
Tier 1: Worksheets
Non-CO2 From Fuel
combustion
- By source
categories
(sub-sectors)
1-3s1 to 1-3s3 (11)
- Transport (by
category of
transport and fuel)
Remarks
Transport
- If activity data are available then there are no difficulties in
obtaining the emissions with the software.
- In reality, emissions of these gases depend on the fuel type used,
combustion technology, operating conditions, control technology,
maintenance and age of the equipment. However, because it is
unlikely that many countries will have this detailed data, the Tier 1
method ignores these refinements.
32
6.32
SECTOR: ENERGY
Fuel Combustion - Road Transport: Non-CO2 Emissions Tier 2
SECTOR: ENERGY: FUEL COMBUSTION (9)
MAIN
UNFCCC Tier 2
CATEGORIES
NAI
Methods
SOFTWARE
Tier 1:
Worksheets
Non-CO2 From Fuel
Bottom-up
combustion
approach
- By source
categories (sectors)
Remarks
Road Transport. Tier 2:
With the Tier 2 approach it is not possible to calculate
emissions using the software
1. The application of Tier 2 for these gases is much
more complex than for CO2.
2. Tier 2 also requires a high volume of activity data
and the development of EFs is more difficult
because these pollutants require technology-based
EFs rather than aggregate default EFs. It is good
practice to calculate an EF for each fuel type,
vehicle type and pollution control technology.
3. There is very little information on the appropriate
EF for road transport in developing countries
where age of fleet, maintenance and patterns of use
are different from those in industrialized countries.
4. In general, EFs for a given country may differ from
the data provided in the IPCC Guidelines and
GPG2000. Care should be taken in applying the
Tier 2 method vis-à-vis use of EFs.
33
6.33
SECTOR: ENERGY
Fuel Combustion - Road Transport: Non-CO2 Emissions Tier 2
SECTOR: ENERGY: FUEL COMBUSTION (9)
MAIN
UNFCCC Tier 2
CATEGORIES
NAI
Methods
SOFTWARE
Tier 1:
Worksheets
Non-CO2 From Fuel
Bottom-up
combustion
Approach
-By source
categories (sectors)
Remarks
Road Transport. Tier 2:
With the approach Tier 2 is not possible calculate the
emissions using the software
Suggestions: If that approach is used in substitution of
the Tier 1 approach, then:
1. Makes the calculations outside of software;
2. Incorporates the results manually in the Sectoral
Table and the Tables of Summary of the Inventory,
3. Add note in the information box of worksheets 12s1-6 clarifying the used method and results
obtained. Provide detailed information in the NIR.
34
6.34
SECTOR: ENERGY
Fuel Combustion-SO2 Emissions Tier 1
SECTOR: ENERGY: FUEL COMBUSTION (10)
MAIN CATEGORIES
UNFCCC - NAI
SOFTWARE
Tier 1: Worksheets
Non-CO2 From Fuel
combustion
-By source categories
(sub-sectors)
1-4s1 to 1-4s5
SO2 emissions from
fuel combustion for
source categories.
Worksheets for each
sector
Note: The current
software provides a
copy of Table 1-4 for
each sub-sector so that
SO2 emission can be
calculated separately
by sub-sectors without
inserting new sheets
manually.
Tier 2 Methods
Remarks
-Stationary combustion
by sub source
categories/ technology
type and country
specific/regional or
IPCC default Tier 2 EF.
-If activity data are available there are not difficulties
to obtain the emissions with the software.
Alert:
-Attention should be paid to the explanatory note in
the worksheet with respect to calculation of the EF for
natural gas. Care should be had in the form that it is
expressed (or converted from other units) the sulfur
content and the caloric value.
With the approach Tier 2 is not possible calculate
the emissions using the software
Suggestions: If that approach is used in substitution of
the Tier 1 approach, then:
1. Makes the calculations outside of software;
2. Incorporates the results manually in the
Sectoral Table and the Tables of Summary of
the Inventory,
Add note in the information box of worksheets 1-4s1
to 1-4s5 clarifying the used method and results
obtained. Provide detailed information in the NIR.
35
6.35
SECTOR: ENERGY
Fuel Combustion - Emissions from Aircraft Tier 1/Tier2
SECTOR: ENERGY: FUEL COMBUSTION (11)
MAIN
UNFCCC NAI
Tier 2 Methods
CATEGORIES
SOFTWARE
Tier 1: Worksheets
Emissions From
Aircraft
Tier 1 (fuel based).
Aggregate figure of
fuel consumption
Based on LTOs and
fuel use.
Worksheets 1-5s1 to
1-5s3
Remarks
- The biggest difficulties in this category are
linked with the activity data and their
separation into domestic and international
activities.
- If activity data are available then there are no
difficulties in obtaining the emissions with the
software.
- The software provides worksheets for the
Tier 2 method.
36
6.36
SECTOR: ENERGY
Fugitive Emission - CH4 from Coal Mining and Handling Tier 1
SECTOR: ENERGY: FUGITIVE EMISSIONS (12)
MAIN
UNFCCC -NAI
Tier 2 Methods
CATEGORIES
SOFTWARE
Tier 1: Worksheets
Methane Emissions
From Coal Mining
and Handling
1-6s1 (1)
EF selected from a
global average
range
- Country specific
EF
Remarks
- There is no difficulty in using the software to
calculate emissions, neither with the Tier 1 nor
Tier 2 approach.
- In the current version of the software new
columns were inserted for taking into account
methane recovered or flared.
37
6.37
SECTOR: ENERGY
Exercise 1.3: CH4 Emissions from Coal Mining and Handling
Tier 1 (I)
Country A: Year: 2000. Worksheet 1-6s1
Data

The National Statistics Office provided the amount of raw coal produced during
the year. The production is carried out in underground mines located in the
same area of the country. The average mining depth is approximately 300 m.
CH4 emission came from ventilation systems and degasification systems. Mine
specific measurement data are not available.
EF underground mines
(m3 CH4/tonne)
(default values)
Mining
Post-mining
17.5
2.45
CH4
Recovered
and used or
flared
(millions m3)
Raw coal
production
(tonne)
30
5 000 000
38
6.38
SECTOR: ENERGY
Exercise 1.3: CH4 Emissions from Coal Mining and Handling
Tier 1 (II)
Country A: Year: 2000. Worksheets 1-6s1
Tasks
1. Calculate CH4 emissions using the Tier 1 method.
2. Verify the emissions report in the Sectoral and Summary
Tables.
3. Fill Table 8A (Overview Table) for the self evaluation of quality
and completeness.
4. Print the worksheet used, the Sectoral Summary Table and the
Overview Table (8A)
39
6.39
SECTOR: ENERGY
Exercise 1.3: CH4 Emissions from Coal Mining and Handling
Tier 1 (III)
Steps
1. Open the software and select in the Energy sector
Worksheet 1-6s1.
2. Enter in column A the amount of coal produced by type of mining
activity.
3. Enter in column B the EFs (if you don’t have country-specific
values use default values).
4. The software makes the rest of the calculations.
40
6.40
METHANE EMISSIONS
41
6.41
REPORT OF CH4 EMISSIONS IN THE SECTORAL
TABLE FOR ENERGY
42
6.42
REPORT OF CH4 EMISSIONS IN THE
SUMMARY TABLE
43
6.43
REPORT OF CH4 EMISSIONS IN THE SHORT
SUMMARY TABLE
44
6.44
SECTOR: ENERGY
Fugitive Emission- CH4 from Oil and Gas Activities Tier 1
SECTOR: ENERGY: FUGITIVE EMISSIONS (13)
MAIN
CATEGORIES
UNFCCC – NAI
SOFTWARE
Tier 1: Worksheets
Tier 2 Methods
Methane Emissions
from Oil and Gas
Activities
1-7s1 (1)
Aggregate
production-base EF.
- New and better
Tier 1 EFs were
presented in
GPG2000 (from
North America). It
is necessary to
consider regional
differences before
adopting them).
- Tier 2
Needs detailed
infrastructure data,
national EF or EF
from the general
literature (EFs are
not provided in the
IPCC Guidelines).
Remarks
Tier 1:
The current software provides two options
(sheet 1-7s1 from IPCC Guidelines or sheet
1-7s2 from GPG2000). It also contains more
detailed emissions sub-categories. Please only
fill either sheet 1-7s1 or sheet 1-7s2.
45
6.45
SECTOR: ENERGY
Fugitive Emission- CO2 and N2O from Oil and Gas Activities
SECTOR: ENERGY: FUGITIVE EMISSIONS (14)
MAIN CATEGORIES
UNFCCC -NAI
Tier 2 Methods
SOFTWARE
Tier 1: Worksheets
Methane Emissions
from Oil and Gas
Activities
- The software doesn't
have worksheets for
these calculations.
- Aggregate
production-based EF.
- New and better Tier 1
EFs were presented in
GPG2000 (from North
America). It is
necessary to consider
regional differences
before adopting).
- Tier 2
Needs detailed
infrastructure data,
national EF or EF
from the general
literature (EFs are not
provided in the IPCC
Guidelines).
Remarks
- It is not possible to calculate these emissions using the
software
Suggestion: 1) Make the calculations outside of the
software, 2) incorporate the results manually in the
Sectoral and Summary Tables, 3) add note in the
information box of Worksheet 1-7S1 clarifying the
method used and results obtained. Provide detailed
information in the NIR.
- The software doesn't include the possibility to apply
the Tier 2 approach.
Suggestion: If the Tier 2 approach is used in
substitution of Tier 1 approach, then: 1) make the
calculations outside of the software, 2) incorporate the
results manually in the Sectoral and Summary Tables,
3) add note in the information box of Worksheet 1-7S1
clarifying the method used and results obtained. Provide
detailed information in the NIR.
46
6.46
SECTOR: ENERGY
Fugitive Emission- O3 Precursors and SO2 from Oil Refining
SECTOR: ENERGY: FUGITIVE EMISSIONS (15)
MAIN
UNFCCC - NAI
CATEGORIES
SOFTWARE
Tier 1: Worksheets
Ozone Precursors
and SO2 from Oil
Refining
1-8s1- 1-8s4 (4)
Remarks
If activity data are available then there are no difficulties in obtaining
the emissions using the software.
47
6.47
SECTOR: ENERGY
Exercise for self evaluation 1: CO2 Reference Approach Tier 1 (I)
Country A: Year: 2000.
Data

The National Statistics Office provided data on the national fuel
consumption included in the energy balance for the year 2000.
Using the Reference Approach and the UNFCCC–NAI Software
determine:
1.
2.
3.
4.
5.
CO2 emissions from liquid fossil fuels.
CO2 emissions from solid fossil fuels.
CO2 emissions from international bunkers.
CO2 emissions from biomass used in energy.
Total CO2 emissions for the country.
6. Verify the emissions report in the Sectoral and Summary Tables.
48
6.48
SECTOR: ENERGY
Exercise for self evaluation 1: CO2 Reference Approach Tier 1 (II)
COUNTRY A: YEAR 2000. FUEL CONSUMPTION
FUEL
TYPES
CRUDE OIL
PRODUCTION
1000 t
IMPORTS
1000 t
3627.9
1479.1
GASOLINE
41.9
JET
KEROSENE
310.8
EXPORTS
1000 t
INTERNAT.
BUNKERS
1000 t
STOCK
CHANGE
1000 t
194.2
52.1
6.2
185.3
OTHER
KEROSENE
-3
3
GAS/ DIESEL
OIL
1051.6
15.4
-90.2
RESIDUAL
FUEL OIL
1363.4
24.72
-26
LPG
78.,9
ANTHRACITE
SOLID
BIOMASS
26
5000
49
6.49
SECTOR: ENERGY
Exercise for self evaluation 1: CO2 Reference Approach Tier 1 (III)
OTHER DATA LINKED TO FUELS CONSUMPTION
FUEL TYPES
CONVERSION FACTOR
TJ/1000 tonne
CARBON EMISSION
FACTOR
t C/TJ
CRUDE OIL
38.95
20
GASOLINE
44.95
18.9
JET KEROSENE
44.15
19.5
OTHER KEROSENE
43.87
19.6
GAS/DIESEL OIL
43.16
20.2
RESIDUAL FUEL OIL
40.57
21.1
LPG
47.65
17.2
ANTHRACITE
33.01
26.8
SOLID BIOMASS
16.23
29.9
50
6.50
SECTOR: ENERGY
Exercise for self evaluation 1: CO2 Reference Approach Tier 1 (IV)
RESULTS
CO2 emissions from liquid fossil fuels
22274.00 Gg
CO2 emissions from solid fossil fuels
82.65 Gg
CO2 emissions from international bunkers
704.64 Gg
CO2 emissions from biomass used in energy
7829.14 Gg
Total CO2 emissions for the country
22356.65 Gg
51
6.51
Thank you
6.52