CO2 DATA COLLECTION USER GUIDEUser Guide, Version 9 (May 2019)

INTRODUCTION

Climate change is the biggest issue facing the steel industry in the 21st century. In order for the industry to provide proof of its potential contribution to the Paris Agreement and the two degree scenario, it has to be able to measure its performance. The industry needs to understand and manage its impact on the climate. Data collection, analysis, and reporting of CO2 emissions are key to establishing a base level for the industry and the first step to managing a reduction of CO2 emissions.

The aim of this project is to collect and report CO2 emissions data on a site-by-site basis to give an overall emission intensity for the production of steel at that site, irrespective of the final products that are being made. This will enable organizations to create a strategy to manage their emissions.

Level of data collection

Individual sites, companies and federations already capture a lot of detailed information on CO2 Emissions, but as these are gathered separately an overview of regional or worldwide data cannot be calculated. By using the CO2 Data Collection System (DCS) to collect and compile all CO2 emission data, worldsteel and ISSF can provide a complete overview of emissions for the entire steel industry.

A secure database for data collection

The database is hosted on dedicated system with banking level ISO 27001 accreditation, Information security management system. Great care has been taken to ensure that data from your own company’s steel plants will be known only to you and the worldsteel and ISSF staff administering the project. Participating steel companies cannot view other companies’ data. At worldsteel and ISSF the Director, Industry Excellence and CO2 data collection project administrator are the only people who can see all the data submitted.

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• Worldsteel and ISSF-centered data collection, analysis, validation, and reporting

• ISO 14404

• GHG emissions analysis on unit equipment and process basis aggregate detailed

• Periodical report to METI on energy use on a factory level (Japan)• Corporate Inventories for GHG program in Mexico w/ participation

of BCSD/WRI)

• EU-ETS: Facility-level mandatory reporting• AISI: DOE 1605 program (GHG emissions report)• APP: Report on distribution rate (SOACT)

• JISF, JSSA: Japan Business Federation Voluntary Plan (CO2 reduction & Energy efficiency)

Global concerted sector-level(e.g. worldsteel sustainability reporting)

National/regional-level(e.g. country inventories for UNFCCC)

Entity-level

Specific unit-level

ACCESS

Accessing the worldsteel Benchmarking System

To access the worldsteel benchmarking system you need a user name and password. If you do not know your user name and password, or have forgotten it, please let the system administrators know by emailing CO2@worldsteel.org.

To log in

Go to URL: https://benchmarking.worldsteel.org/

Enter your user name (your e-mail address) and password into the boxes provided.

Password Reminder :

Click the Password to activate password reminder.

Type your e-mail address and click ‘Submit’. You will receive an email from benchmarking system.

You will see the message as below, and system reminds you your original password via email.

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Accessing the CO2 Data Collection System

Please enter the password you received via email in the blank at ‘old password’. And you will need new password to use benchmarking system, old password will be expired by this.

When you have successfully logged in, the benchmarking home page appears.

To access the DCS, you need to confirm if you have access rights. If you see CO2 on the left menu bar, and this is colored black, then this means you have access. Your access rights are listed in the grey box on the home page.

ACCESS

Roles : Superuser and User

There are two levels of access to the DCS, superusers and users.

A superuser oversees the data collection and approves data once it has been input by users. Superuser accounts are created by the project administrators at worldsteel and ISSF following the nomination of a superuser by a company or federation. The superuser request to add/correct user accounts.

A user can enter and submit data into the DCS for approval by the superuser. Once approved, a user can view the approved data.

ADMINISTRATION

Organization

Site SiteUser

Worldsteel/ISSFStaff

(Administrator)

User

Superuser

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ADMINISTRATION

Organisation and site codes

To enhance data security each organisation is assigned a four letter code and each site’s code is composed of these four letters and an additional three digits. If an organisation owns subsidiaries that are independently registered as worldsteel members, each of the subsidiaries is assigned its own four letter organisation code. Superusers and users can find their organisation and site codes when they access data collection.

* Note : One or more oragnisation code causes confusion between worldsteel staffs and user.

Data Status

When a user enter data and saves, data status changes to ‘Draft’. The user should click ‘Submit’ to complete data submission. The superuser is automatically informed by email that the data requires approval. At this point the user cannot make any edits to the data. The superuser can either approve the data or request that the user make corrections. If the superuser approves the data then the worldsteel/ISSF administrator is automatically informed by email. At this point the data undergoes verification by the administrator.

* Note : The Superuser can click ‘Corrections requested’ or ‘Approve’ after reviewing submitted data by the user. Once the Superuser approves data, the system sends an email to the Administrators in order to obtain verification of data, and the Superuser can not revise the data anymore. To cancel data approval, please contact to administrator. The SuperUser can edit data and cancel data submission has not yet approved.

Organization

(XXXX)

Site

(XXXX001)

Site

(XXXX002)

Draft Submitted Approved In CalculationEmptyData Status

Userworldsteel

staff

User

Superuser

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Data collection [User]

Importing site data

When you click ‘edit’ or ‘new data submission’, you will access the CO2 emission data submission form.

‘Import CO2 emission data submission form’ allows you to import data via Excel sheet.

The Excel sheet you import must contain the data entered in the same format as in the Excel form that can be downloaded from the website. Do not change any of the formatting options.

When you finish the import, you will see the message ‘successfully done’ at the top of the webpage. If the import does not work, please contact the system administrator.

DATA COLLECTION

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DATA COLLECTION

Data Collection Result

Interactive webpage

When you insert data on the webpage, now the webpage interacts with users. You can check the result of data at the webpage. Please confirm the result below.

Save and Submit

Do not forget to click ‘Save and Submit’. This allows to send your data to worldsteel server.

Export Submitted data

You can now export typed-in data with this function.

Back to Data Status Page

PLEASE CHANGE YOUR DATA STATUS to let worldsteel staff know your data submission is finished.Status ‘Approve’ is the final status for the submission by superuser.

Data Status Page

Please wait until verification process is finished by worldsteel staff. If there is any request to check your data, worldsteel staff would contact you directly. ‘In-Calcs’ status confirms your data is well verified.

ANALYSIS

Analytics [All users]

The ‘Analytics’ tab provides a new data visualisation tool with which companies can confirm the results of worldsteel/ISSF’s data analysis. This tool is designed to help companies compare their performance with others and to easily check key performance indications (KPIs). This tab is available through the data collection system at the end of the reporting period.Data points of this tab belongs to annual CO2 report provided by worldsteel and ISSF staff. Climate Action members can confirm important operation key indicators within dataset.

* Note : Analytics is available when worldsteel and ISSF staff finish the annual report and grant Climate Action certificate.

Example 1) Annual trend

Example 2) Indicator analysis

CO2 report pdf file Member’s graphs

Possible benchmarking targets

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APPENDIX

Appendix 1: Methodology

Appendix 2: Key definitions

Appendix 3: Calculation of emissions

Appendix 4: Useful conversion factors

Appendix 5: Estimating total carbon content from proximate analysis

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APPENDIX

Methodology

The basic methodology for calculating emissions is illustrated below. Calculations incorporate Scope 1 (Scope 1.1), Scope 2 and Scope 3 emissions, according to the greenhouse gas (GHG) protocol.

• Basic definition of calculation (direct/indirect/credit)• Agreed (default/measured) common conversion factors

CO2 emissions = Direct + Indirect – Credit

CO2 intensity = CO2 emissions (tonne)/crude steel (tonne)

Upstream value of mining and transport is excluded from the system boundary.

Upstream value of petroleum products for oil refining is included.

Upstream CO2 value: sum of CO2 emitted during the production of each item

Upstream energy value: sum of energy consumed during the production of each item

System boundaries

Appendix 1

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Coke oven

Sinter plant

Blast furnace

Basic oxygen furnace

Caster

Hot rolling mill

Pellet plant

Smelting reduction

Cold rolling mill

Lime kiln

Steam boiler

Power plant

Oxygen plantCoating mill

System boundary

Essential facilities

Direct emission sources

Upstream emission sources

Products

Cred

its

Electric arc furnace

Carrying carbon

Consumed CO2

Not used carbon Not consumed CO2

CO2 emissions

Key Definition

Site structure

HDG lines: Hot Dip Galvanizing lines EG: Electro-Galvanized lines Smelting Red: Smelting Reduction

Basic information

Total coke production - Total dry coke delivered by the batteries after quenching (including BF coke and fines,

excluding wet quenching sludge)

Sinter production - Merchant sinter delivered to BF bunkers before screening

Hot metal production- Total hot metal at main runner

DRI production - Total DRI at plant outlet

BOF crude steel production- Total crude steel production using BOF

Open hearth crude steel production- Total crude steel production using Open hearth

EAF crude steel production- Total crude steel production using EAF

Carbon crude steel production- Sum of BOF, Open hearth and EAF crude steel production

Granulated slag production- Total production of dry granulated blast furnace slag

Purchased carbon steel scrap- Total external procurement of scrap (pre- and post-consumer scrap, excluding home

scrap), It means “net of inventory” regarding purchased scrap, not on the use of scrap or the environmental burden of scrap or scrap recycling models

APPENDIX

Appendix 2

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Key Definition

CO2 Table definitions

Procured / purchasedAmounts entering site from external sources, net of inventory change ahead of home production (for example: net electricity purchased from the grids)

Delivered / soldAmounts delivered from the site, excluding internal use (for example: net coke sold)

Carbon contentTotal carbon content on dry basis. If unknown, it can be estimated by proximate analysis(see appendix 6). If no data is provided, a default value will be used

Net calorific valueHeating value of fuel on dry basis with reference to water vapour. If no data is provided a default value will be used.

Scope 1 emissions (according to greenhouse gas protocol)Direct emissions from site chimneys determined from straight carbon balance

Scope 1.1 emissions ( worldsteel panel of experts)Direct emissions of exported by-product gas.

= Direct emission factor of by-product gas × (Purchased-Sold)

Scope 2 emissions (according to greenhouse gas protocol)Upstream emissions or credits related to procurement/delivery of electricity and steam from site. Upstream emissions of exported by-product gas considering the potential savings in electricity generation.

= Upstream emission factor of by-product gas × (Purchased-Sold)

Scope 3 emissions (according to greenhouse gas protocol)Other upstream emissions or credits related to procurement / delivery of pre-processed materials / by-products from site.

Coking coalCoal for making coke, including anthracite

BF injection coalPCI (Pulverized Coal Injection) coal, including anthracite

Sinter/BOF coalCoal for sinter/BOF, including anthracite

Steam coalBoiler coal for producing electricity and steam, including anthracite

APPENDIX

Appendix 2

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Key Definition

CO2 Table definitions

EAF coalCoal for EAF, including EAF injected carbon, EAF charge carbon and anthracite

SR/DRI coalCoal for SR/DRI, including anthracite (SR: SmeltingReduction, DRI: Direct Reduced Iron)

CokeA solid carbonaceous material

CharcoalDevolatalised or coked carbon neutral materials (trees, plants)

Heavy oilBunker-C oil

Light oilDiesel oil (not including bio-diesel oil)

KeroseneParaffin (oil)

LPGLiquefied petroleum gas

LimestoneCalcium carbonate (CaCO3)

Burnt limeCaO

Crude dolomiteCalcium magnesium carbonate (CaMg(CO3)2)

Burnt dolomiteCaMgO2

EAF/BOF electrodesNet use of EAF/BOF electrodes or attrition loss

Pig Iron Hot metal, intermediate liquid iron products produced by smelting iron ore with equipment such as blast furnace

APPENDIX

Appendix 2

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Key Definition

CO2 Table definitions

Cold Ironsolidified hot metal as an intermediate solid iron products

Gas based DRIDRI (Direct Reduced Iron)

ElectricityWorld average value based on IEA 2006

Coal based DRIDRI (Direct Reduced Iron)

OxygenO2

NitrogenN2

ArgonAr

Coke Oven gasCOG

Blast Furnace gasBFG

BOF gasLDG (Linz Donawitz Gas)

BF slag to cementBF granulated slag sold to cement industry for credits

BOF slag to cementBOF slag sold to cement industry for credits

CO2 to external useCO2 sold to carbonated drink manufacturers for credits

Appendix 2

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APPENDIX

Calculation of emissions

The following tables show the values used by the application to calculate the total emissions for a site. The listed CO2 emission factors were defined and agreed by a worldsteel panel of experts.

Direct emission factors (Scope 1, Scope 1.1)

* The gold-coloured boxes are modifiable. If the data is not measured or available, default values will be used. Measurement of carbon content and net caloric value is highly recommended to obtain more accurate CO2 emissions.* EAF/BOF electrodes - If the data of electrodes is available, enter the number of consumed electrodes in your site. Entering the data is highly recommended for EAF makers. If the data is not available or empty (in the case of scrap based sites), a default emission factor is considered as 0.005 tCO2 /total crude steel.

Item Unit Default

ncv(GJ/unit)

Conversion factor

(tCO2/GJ)

Direct Emission factor(tCO2 /unit)

Reference

Iron ore dry t 0.000 0.000 0.037 worldsteelCoking coal dry t 32.200 0.0950 3.060 IEABF injection coal dry t 31.100 0.0950 2.953 IEASinter/BOF coal dry t 29.300 0.0950 2.785 IEASteam coal dry t 25.900 0.0950 2.462 IEAEAF coal dry t 30.100 0.1082 3.257 IEASR/DRI coal dry t 31.100 0.0950 2.953 worldsteelCoke dry t 30.100 0.1082 3.257 worldsteelCharcoal dry t 18.800 0.000 0.000 worldsteelHeavy oil m3 37.700 0.0771 2.907 IEALight oil m3 35.100 0.0741 2.601 IEAKerosene m3 34.700 0.0715 2.481 IEALPG t 47.300 0.0631 2.985 IEALNG k.m3N 35.900 0.056 2.015 worldsteelNatural gas k.m3N 35.900 0.056 2.015 IEALimestone dry t 0.000 0.000 0.440 IPCCCrude dolomite dry t 0.000 0.000 0.476 worldsteelEAF/BOF electrodes t 0.000 0.000 3.663 IPCCPig Iron t 0.000 0.000 0.172 worldsteelCold Iron t 0.000 0.000 0.172 ISO14404Ni pig iron t 0.000 0.000 0.018 ISSFGas based DRI t 0.000 0.000 0.073 IPCCCoal based DRI t 0.000 0.000 0.073 IPCCFerro-Nickel t 0.000 0.000 0.037 ISSFNickel oxides t 0.000 0.000 0.004 ISSFNickel metal t 0.000 0.000 0.004 ISSFFerro-Chromium t 0.000 0.000 0.275 ISSFFerro-Molybdenum t 0.000 0.000 0.018 ISSFFerro-Manganese t 0.000 0.000 0.183 ISSFCoke oven gas k.m3N 19.000 0.044 0.835 worldsteelBlast furnace gas k.m3N 3.300 0.270 0.890 worldsteelBOF gas k.m3N 8.400 0.180 1.513 worldsteelCoal tar t 37.000 0.092 3.389 WRIBenzol t 40.570 0.083 3.382 worldsteel

APPENDIX

Appendix 3

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Calculation of emissions

Upstream emission factors (Scope 2, Scope 3)

* worldsteel: worldsteel panel of Experts, ISSF: ISSF panel of Experts* Both energy equiv. value and emission factor of electricity are world average values based

on IEA CO2 emissions from fuel combustion 2006. These values will be updated on an annual basis.

eg. CO2 Emission factor of Electricity = Energy equiv. value * conversion factor= 9.8 GJ/MWh * 0.0514 TCO2/GJ = 0.504 TCO2/MWh

* Energy equiv. value: 9.8 GJ/MWh , conversion factor: 0.0514 TCO2 /GJ (ref. IEA)

Item Unit Energy Equiv.Value

(GJ/Unit)

Upstream Emission Factor

(tCO2/unit)

Reference

Scope 2 Scope 3Coke dry t 4.000 0.224 worldsteelHeavy oil m3 0.000 0.276 IEALight oil m3 0.000 0.247 IEAKerosene m3 0.000 0.247 IEALNG k.m3N 0.000 0.665 worldsteelBurnt lime t 4.500 0.950 worldsteelBurnt dolomite t 4.500 1.100 worldsteelSinter t 2.450 0.262 worldsteelPellets t 2.100 0.137 worldsteelEAF/BOF electrodes t 0.000 0.650 worldsteelPig Iron t 20.900 1.855 worldsteelCold Iron t 20.900 1.855 worldsteelNi pig iron t 0.000 5.200 ISSFGas based DRI t 14.100 0.780 worldsteelCoal based DRI t 17.900 1.210 worldsteelFerro-Nickel t 0.000 8.676 ISSFNickel oxides t 0.000 20.279 ISSFNickel metal t 0.000 13.579 ISSFFerro-Chromium T 0.000 5.987 ISSFMolybdenum oxides t 0.000 6.500 ISSFFerro-Molybdenum t 0.000 8.500 ISSFFerro- Manganese t 0.000 2.789 ISSFElectricity MWh 9.800 0.504 IEASteam t 3.800 0.195 IEAOxygen k.m3N 6.900 0.355 IEANitrogen k.m3N 2.000 0.103 IEAArgon k.m3N 2.000 0.103 worldsteelCoke oven gas k.m3N 19.000 0.977 worldsteelBlast furnace gas k.m3N 3.300 0.170 worldsteelBOF gas k.m3N 8.400 0.432 worldsteel

APPENDIX

Appendix 3

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Calculation of emissions

Note for by-product gases

Calculation CO2 emissions of by-product gases

As agreed by a worldsteel and ISSF panel of experts, instead of using scope 3, by-product gas is calculated in scope 1 when used in own power plant or calculated in scope1.1 when used in external power plant as it is generated directly by iron, coke, and steelmaking processes and used internally on-site and excess can be sold externally for power generation in order to identify the sites with external and internal power plants.

Hence, total emission of exported by-product gases is calculated in Scope 2 as the upstream emission factor which is an electricity-equivalent value will be used for calculating CO2 emissions of by-product gases.

* There is no change in total CO2 emission amount and intensity calculated for each site.

Undecided credits in CO2 data collection

* BF and BOF slag to cement are potential credits. Their emission factors are not finalised yet. They need to be determined after discussion among member companies and cement industries.* CO2 to external is a direct emission credit. This needs to be determined after discussion among member companies and beverage and chemical industries.

Previous Version Current Version (New 2015)

Scope 1 Direct EF * (Purchased – Sold) Direct EF * (Purchased – Sold)

Scope 1.1 - – Direct EF * (Purchased – Sold)

Scope 2Purchased Power

Purchased Power – power from exported waste gas= Purchased Power – {Upstream EF * (Sold – Purchased)}= Purchased Power + Upstream EF * (Purchased – Sold)

Scope 3 (Upstream EF – Direct EF) * (Purchased – Sold) -

Total Purchased Power + Upstream EF * (Purchased – Sold) Purchased Power + Upstream EF * (Purchased – Sold)

APPENDIX

Appendix 3

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unit Scope 1 Scope 3

BF slag to cement t 0.550

BOF slag to cement t 0.300

CO2 to external t 1.000

ItemEmission factor (tCO2/k.m3N)

Direct Upstream

Coke Oven gas 0.835 0.977

Blast furnace gas 0.890 0.170

BOF gas 1.513 0.432

Unit conversion factors

Conversion

Conditions

APPENDIX

Appendix 4

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Dimension Conversion

1 scf Volume 0.026862 m3N

1 gal Volume 0.003785 m3

1 lb Weight 0.453592 kg

1 nt Weight 0.907184 mt

1 mmBTU Energy 1.054349 GJ

1 mBTU/scf Energy 39.251136 MJ/m3N

1 mBTU/nt Energy 1.162222 MJ/mt

1 BTU/gal Energy 0.278530 MJ/m3

Conditions

1 Nm3 1 atm (1.013 x 105 Pa) , 0 ºC

1 scf 30 Hg – 60 ºF

Estimating total carbon content from proximate analysis

The table below shows the carbon content in coals and cokes.

Use the following calculation to estimate the total carbon content:

Coals

Total carbon content, C = 100 - Ash - 0.47*Volatiles

Volatiles are considered as coke oven gas (53% carbon by weight)

Coke

Total carbon content, C = 97.75 – Ash

APPENDIX

Appendix 5

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