certifhy implementing an eu- wide guarantee of origin for green … · 2019. 3. 13. · criteria to...

Project supported by the FCH JU

CertifHy – Implementing an EU-

wide Guarantee of Origin for

Green Hydrogen

Material for WG2

Webmeeting of 1 March 2018

Pilot plant case studies(Preliminary)

Pilot plants

1. Colruyt Group – H2 from water electrolysis – Belgium

2. Uniper – H2 from water electrolysis / Windgas – Falkenhagen, Germany

3. Akzo Nobel / Air Products – H2 from Chlor-Alkali – Botlek, Netherlands

4. Air Liquide – H2 from SMR with CO2 capture – Port Jerome, France

2

Criteria to be checked for issuing CertifHy GOs

(1) on past production and (2) on production batch

3

Timet2t2 – 12 mths

H2 Production

12 months*

t1

ProductionBatch

Non-renewable share

Renewable share

CertifHyLow Carbon H2 GOs

CertifHyGreen H2 GOs

(1) Average carbon footprint since t2-12 months of Non-CertifHy H2 must not exceed 91 gCO2/MJH2

Past Production

H2 withGreen GO

H2 withLC GO

Grey H2

< 91 gCO2/MJH2 ?

(2) Average carbon footprint of H2 covered by a CertifHy GOmust not exceed 36.4 gCO2/MJH2

< 36.4 gCO2/MJH2 ?

< 36.4 gCO2/MJH2 ?

* Or since joining the scheme if

more recent than 12 months

Renewable share of hydrogen =

Share of renewable energy in the energy input into the production device

Hydrogen

production

Electricity input10 GJ

Biomass input20 GJ

4

Total energy input : 30 GJ

Renewable *: 20 GJNon-renewable:

7 GJ

Renewable *:3 GJ

Renewable: 23 GJ

Non-renewable:7 GJ

23%

77%

Renewable H2

77%

Non-renewableH2

23%

* Via GO or direct feedstock2/28/2018




Green Hydrogen

Pilot plant case study

Jonas Cautaerts

01/03/2018

Colruyt Group

H2 from electrolysis - Belgium

Colruyt Group – Electrolysis (Alkaline + PEM)

6

Key characteristics

• H2 production capacity: 8,1 kg/h

• PEM (2,7 kg/h) + Alkaline (5,4 kg/h)

• Storage

• 85 kg

• Fuel Cell: 120 kW

Production process description

7

Key parameters

• 400 bar 75 forklifts / heavy duty

• 900 bar min 5 passenger cars

• Purity min 99,998 %

https://youtu.be/e3xKfyc_iEU

Production process diagram

8

Distribution cabinet

ALK elektrolysis5.4 kg/u

PEM elektrolysis2.7 kg/u

Compressor 12.7 kg/u

Compressor 25.4 kg/u

Storage A420 bar

Storage B420 bar

Outdoor dispenser

Public service station

Indoor dispenser 1

Backup storage200 bar

Backup

Distribution cabinet

Compressor 1Compressor 2

ALK Elektrolysis

PEM Elektrolysis

Outdoor disp.

BackupStorage A

Storage B

H2

H2

H2

O2

Indoor dispenser 2

?

?

?

Expected GO issuing and use during pilot (6 Months)

9

Expected hydrogen production volume

Max 190 kg/d

Green Hydrogen GOs

Up to 190 kg/d

Low Carbon Hydrogen GOs

Up to 0 kg

Share available for GO market

0 %


0 %



10


H2 Production

12 months*

t1

ProductionBatch

Non-renewable share

Renewable share




Past Production

H2 withGreen GO

H2 withLC GO

Grey H2

< 91 gCO2/MJH2 ?


< 36.4 gCO2/MJH2 ?

< 36.4 gCO2/MJH2 ?





Hydrogen

production


Biomass input20 GJ

11



7 GJ

Renewable *:3 GJ

Renewable: 23 GJ

Non-renewable:7 GJ

23%

77%

Renewable H2

77%

Non-renewableH2

23%


Definition of the production device -

H2 from water electrolysis with purification and compression

12

Water

Electrolysis

&

Compression

(for storage)Water

Hydrogen

O2

Grid Electricity

Product system

H2O

+ H

2

Wind/PV Electr.

The “product system” (ISO 14044) includes all the steps

needed for generating hydrogen with a purity of at least

99.9% and a pressure of at least 30 barg (CertifHy criteria).

Calculation of H2 product carbon footprint –

(1) Non certified H2 produced in the preceding 12 months

13

Grid elec.

consumed (MWh)

Grid. elec. emis.

factor(tCO2eq/MWh)

1 tCO2eq/tH2= 8.33 gCO2eq/MJH2 LHV

El. GOs purchased*

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

Measured Constant factor

Process specific factor

Calculation output

Calculation output for

criteria application

In accounting

El. GOs purchased*

(MWh)

H2 emissions

(tCO2eq)

Certified H2

produced (t)

Non-certified H2

footprint tCO2eq/tH2)

Source of calculation input data

Emissions of cert.

product (tCO2eq)

H2 produced

(t)

Max footprint of non-certified product:

10.9 tCO2eq/tH2= 91 gCO2eq/MJH2 LHV

In preceding 12 months:

* for greening grid electricity

Zero if GOs are

acquired for all

grid electricity

consumed

Note: Grid electricity is consumed when

electrolyser consumption exceeds

Wind/PV generation


(2) H2 batch foot print

14

Grid elec.

consumed (MWh)

Grid. elec. emis.

factor(tCO2eq/MWh)

El. GOs purchased*

(MWh)

El. GO emis. factor

(tCO2eq/MWh)



Calculation output



In accounting

El. GOs purchased*

(MWh)

H2 emissions

(tCO2eq)

H2 batch footprint

tCO2eq/tH2)


H2 produced

(t)


Max footprint of H2 batch:

4.37 tCO2eq/tH2= 36.4 gCO2eq/MJH2 LHV

Between t1 and t2:


Zero if GOs are

acquired for all

grid electricity

consumed

Note: Grid electricity is consumed

when electrolyser consumption

exceeds Wind/PV generation

Calculation of the share of the batch that is of renewable origin

15

Total electricity

consumed (MWh)

Renew. elec. GOs

purchased (MWh)

H2 batch

renew. share (%)

Between t1 and t2:

Wind/PV elec.

consumed (MWh)



Calculation output



In accounting



(1) Non certified H2 produced in the preceding 3 months - Example

16

Grid elec.

Consumed (MWh)

Grid. elec. emis.

factor (MWh)


El. GOs purchased*

(MWh)

El. GO emis. factor

(tCO2eq/MWh)



Calculation output



In accounting

El. GOs purchased*

(MWh)

H2 emissions

(tCO2eq)

Certified H2

produced (t)

Non-certified H2

footprint (tCO2eq/tH2)


Emissions of cert.

product (tCO2eq)

H2 produced

(t)



Production time frame: 1/10/17 – 31/01/18


Always 0: each MWh consummed fromthe grid is “neutralised” with a GO

Always 0: EU wind GOs are

always used

‘X’ because nothappened yet, but could have

happened

X

X

0

0

X

0

X

0

00

0


(2) H2 batch foot print - Example

17

Grid elec.

consumed (MWh)

Grid. elec. emis.

factor (tCO2eq/MWh)

El. GOs purchased*:

0 MWh

El. GO emis. factor

(tCO2eq/MWh)



Calculation output



In accounting

El. GOs purchased*

(MWh)

H2 emissions

(tCO2eq)

H2 batch footprint

(tCO2eq/tH2)


H2 produced:

(t)




Between 01/01/18 and 31/01/18:


0

0

0

0.8

0

Calculation of the share of the batch that is of renewable origin -

Example

18



Calculation output



In accounting


Total electricity

consumed (MWh)

Renew. elec. GOs

purchased (MWh)

H2 batch

renew. Share (%)

Wind/PV elec.

Consumed (MWh)

Between 01/01/18 and 31/01/18:

100

46.1

46.1




Green Hydrogen


Florian Schwarz

01/03/2018

Uniper - H2 from electrolysis

Windgas Falkenhagen - Germany

Uniper WindGas Falkenhagen – Electrolysis

20

Key characteristics

Electrolysis

• H2 production capacity 32 kgH2/h

360 m³H2/h

2 MWel

Methanation

• H2 utilisation 19 kgH2/h

210 m³H2/h

• CO2 (biogenic) utilisation 104 kgCO2/h

52,5 m³CO2/h

• SNG1 production capacity 41 kgSNG/h

57 m³SNG/h

Source: Google maps 1 SNG = Synthetic Natural Gas


21

Key parameters

Electrolysis

• Product H2 pressure 10 bar

• Product H2 purity 5.0

• Feed in either into gas grid

(certified as biogas) or in

future into methanation

plant

• Prequalified for secondary

control reserve

Methanation

• Catalytic methanation

• Product SNG1 purity G260

6 Electrolysis container 2 MWel,

max. 360 Nm³/h

Methanation210 Nm³/h H2

57 Nm³/h SNG1

Measuring and control system

SNG1 (methane)

Measuring and control system

Hydrogen

CompressorHydrogen and/or SNG (methane)

CO2 Source(biogenic origin) O

NTR

AS

gas

pip

elin

e

Electricity grid incl. wind farm

connection(Power GOs)

Unit process 1 Unit process 2

1 SNG = Synthetic Natural Gas

10 bar (g) 55 bar (g)

WindGas Falkenhagen

22


23


Up to 38 tH2/a (max. 456 kgH2/d)1

Green Hydrogen GOs

Up to 38 t


0 t


Up to 10 %


na

1 In addition up to 192 tH2/a (direct feed in / no methanation)



24


H2 Production

12 months*

t1

ProductionBatch

Non-renewable share

Renewable share




Past Production

H2 withGreen GO

H2 withLC GO

Grey H2

< 91 gCO2/MJH2 ?


< 36.4 gCO2/MJH2 ?

< 36.4 gCO2/MJH2 ?





Hydrogen

production


Biomass input20 GJ

25



7 GJ

Renewable *:3 GJ

Renewable: 23 GJ

Non-renewable:7 GJ

23%

77%

Renewable H2

77%

Non-renewableH2

23%


Compression


H2 from water electrolysis with purification and compression

26

H2

generation

&

purification

Water

Hydrogen

O2

Electricity

Electricity

Unit process 1

Product system

LowP H2-1

Unit process 2

H2O

+ H

2

SNG

Low

PH

2-2

SN

G

Note: At a any given moment in time, LowP H2 generated will be either ALL directly compressed for

injection as pure hydrogen, or ALL converted to SNG.

The “product system” (ISO 14044) includes all the

steps needed for generating hydrogen with a purity

of at least 99.9% and a pressure of at least 30 barg

(CertifHy criteria).



27

Grid elec.

consumed (MWh)

Grid. elec. emis.

factor(tCO2eq/MWh)


LowP H2 emissions

(tCO2eq)El. GOs purchased*

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased*

(MWh)

LowP H2 footprint

(tCO2eq/tH2)

Grid elec.

consumed (MWh)

Grid elec. emis.

factor (tCO2eq/MWh)

El. GOs purchased

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

Unit process 1

Unit process 2

Compression

emissions (tCO2eq)

H2 emissions

(tCO2eq)

Certified H2

produced (t)

Non-certified H2


Emissions of cert.

product (tCO2eq)

H2 produced

(t)




LowP H2 produced

(t)

LowP H2 fed to

compressor (t)

LowP H2-1

emissions (tCO2eq)


Zero if GOs are

acquired for all grid

electricity consumed



Calculation output



In accounting




28

Grid elec.

consumed (MWh)

Grid. elec. emis.

factor(tCO2eq/MWh)


LowP H2–1

emissions (tCO2eq)El. GOs purchased*

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased*

(MWh)

Grid elec.

consumed (MWh)

Grid elec. emis.

factor (tCO2eq/MWh)

El. GOs purchased

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

Unit process 1

Unit process 2

Compression

emissions (tCO2eq)

H2 emissions

(tCO2eq)

H2 batch footprint

tCO2eq/tH2)

H2 produced

(t)


Zero if GOs are





Calculation output



In accounting




Between t1 and t2:


29

Electricity

consumed (MWh)

Renew. elec. GOs

purchased (MWh)*


H2 batch

renew. share (%)

Between t1 and t2:



Calculation output



In accounting


Wind elec. directly

consumed (MWh)

Renew. elec. GOs

purchased (MWh)*

Wind elec. directly

consumed (MWh)

Electricity

consumed (MWh)



(1) Non certified H2 produced in 12 months - Example

30

Grid elec.

consumed (MWh)

Grid. elec. emis.

factor(tCO2eq/MWh)


LowP H2 emissions

(tCO2eq)El. GOs purchased*

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased*

(MWh)

LowP H2 footprint

(tCO2eq/tH2)

Grid elec.

consumed (MWh)

Grid elec. emis.

factor (tCO2eq/MWh)

El. GOs purchased

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

Unit process 1

Unit process 2

Compression

emissions (tCO2eq)

H2 emissions

(tCO2eq)

Certified H2

produced (t)

Non-certified H2


Emissions of cert.

product (tCO2eq)

H2 produced

(t)



LowP H2 produced

(t)

LowP H2 fed to

compressor (t)

LowP H2-1

emissions (tCO2eq)


Zero if GOs are





Calculation output



In accounting


Production time frame: Jul 2015 – Jun 2016

6184

6184

100

100

225

225

0

0

0

6184

0

0

225

0

0

100

0

0

00


(2) H2 batch foot print - Example

31

Grid elec.

consumed (MWh)

Grid. elec. emis.

factor(tCO2eq/MWh)


LowP H2–1

emissions (tCO2eq)El. GOs purchased*

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased*

(MWh)

Grid elec.

consumed (MWh)

Grid elec. emis.

factor (tCO2eq/MWh)

El. GOs purchased

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

Unit process 1

Unit process 2

Compression

emissions (tCO2eq)

H2 emissions

(tCO2eq)

H2 batch footprint

tCO2eq/tH2)

H2 produced

(t)


Zero if GOs are





Calculation output



In accounting




Between Jul 2015 and Jul 2016:

6184

6184

225

225

0

0

0

6184

0

225

0

0

100

0

0

Calculation of the share of the batch that is of renewable origin –

Example

32




Calculation output



In accounting


Between Jul 2015 and Jul 2016:

Electricity

consumed (MWh)

Renew. elec. GOs

purchased (MWh)*

H2 batch

renew. share (%)

Wind elec. directly

consumed (MWh)

Renew. elec. GOs

purchased (MWh)*

Wind elec. directly

consumed (MWh)

Electricity

consumed (MWh)


6184

0

225

0

6184

225

100%




Green Hydrogen


Joost Sandberg – Frank Schnitzeler

01/03/2018

Akzo Nobel / Air Products

H2 from Chlor-Alkali Botlek Netherlands

Akzo Nobel / Air Products – H2 from Chlor-Alkali Botlek Netherlands

34

Key characteristics AkzoNobel

• Chlor-Alkali plant, 200 MW

• H2 Production capacity: 18 kt p.a.

• H2 utilisation:

• Delivery to Air Products

• Use in steam generation

Key characteristics Air Products

• Over 40 km H2 pipeline

• Feed-in by AkzoNobel and HyCO4 (SMR)

• Supply to various refineries/chemical

industry and to customers with liquid

H2 trailers (ex. Botlek) and gaseous H2

trailers (ex. Pernis)


35

Key parameters

• Pressure: 2 bar ex Chlor-Alkali;

40 bar in H2-pipeline

• Purity: > 98% ex Chlor-Alkali;

>99% in H2-pipeline

• Production capacity: 2 t/hr

Chlor-alkaliprocess

brine

NaOHChlorine

H2

Compression&

Purification H2

Liquefaction &

Storage

Trailer loadingCUSTOMER

AKZO AP

http://apps.carleton.edu/campus/facilities/sustainability/wind_turbine/?module_api=image_detail&module_identifier=module_identifier-mcla-ImageSidebarModule-mloc-sidebar-mpar-dcca48101505dd86b703689a604fe3c4&image_id=60759

Rotterdam Botlek Membrane Electrolysis Plant

36

Salt Water Power

Brine

Electrolysis

Chlorine Caustic Hydrogen


37


40 t/d

Green Hydrogen GOs

100 t (up to 18 kt production capacity)



50 %




38


H2 Production

12 months*

t1

ProductionBatch

Non-renewable share

Renewable share




Past Production

H2 withGreen GO

H2 withLC GO

Grey H2

< 91 gCO2/MJH2 ?


< 36.4 gCO2/MJH2 ?

< 36.4 gCO2/MJH2 ?





Hydrogen

production


Biomass input20 GJ

39



7 GJ

Renewable *:3 GJ

Renewable: 23 GJ

Non-renewable:7 GJ

23%

77%

Renewable H2

77%

Non-renewableH2

23%



H2 from Chlor-Alkali with compression and purification

40

Compression

&

purification

Chlor-

alkaliH2O+NaCl

Hydrogen

H2O

+ H

2

H2 + H2O

Cl 2

Electricity

Electricity

Unit process 1

Product system

NaO

H

RAW H2

Unit process 2

The “product system” (ISO 14044) includes all the

steps needed for generating hydrogen with a purity

of at least 99.9% and a pressure of at least 30 barg

(CertifHy criteria).



41

Elec. consumed

(MWh)

Elec. emis. factor

(tCO2eq/MWh)


Unit proc. 1

emissions (tCO2eq)

El. GOs purchased

(MWh)

El. GO emis. factor

(tCO2eq/MWh)



Calculation output



In accounting

El. GOs purchased

(MWh)

Raw H2 unit “value”

(v/t)

Cl2 unit “value”

(v/t)

NaOH unit “value”

(v/t)

Raw H2 produced

(t)

Cl2 produced

(t)

NaOH produced

(t)

Produced H2 “value”

(v)

Produced Cl2 “value”

(v)

Produced NaOH

“value” (v)

Total production

“value” (v)

Emis. allocation to

Raw H2 (%)

Emis. allocation to

Cl2 (%)

Emis. allocation to

Cl2 (%)

Emis. allocation to

Raw H2 (%)

Emis. allocated to

RAW H2 (tCO2eq)

Elec. consumed

(MWh)

Elec. emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

Unit process 1

Unit process 2

Unit proc. 2 addit.

emissions (tCO2eq)

H2 emissions

(tCO2eq)

Certified H2

produced (t)

Non-certified H2



Emissions of cert.

product (tCO2eq)

H2 produced

(t)






42

Elec. consumed

(MWh)

Elec. emis. factor

(tCO2eq/MWh)


Unit proc. 1

emissions (tCO2eq)

El. GOs purchased

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

Raw H2 unit “value”

(v/t)

Cl2 unit “value”

(v/t)

NaOH unit “value”

(v/t)

Raw H2 produced

(t)

Cl2 produced

(t)

NaOH produced

(t)

Produced H2 “value”

(v)

Produced Cl2 “value”

(v)

Produced NaOH

“value” (v)

Total production

“value” (v)

Emis. allocation to

Raw H2 (%)

Emis. allocation to

Cl2 (%)

Emis. allocation to

Cl2 (%)

Emis. allocation to

Raw H2 (%)

Emis. allocated to

RAW H2 (tCO2eq)

Elec. consumed

(MWh)

Elec. emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

El. GO emis. factor

(tCO2eq/MWh)

El. GOs purchased

(MWh)

Unit process 1

Unit process 2

Unit proc. 2 addit.

emissions (tCO2eq)

H2 emissions

(tCO2eq)

H2 produced

(t)

H2 batch footprint

(tCO2eq/tH2)


4.37 tCO2eq/tH2= 36,4 gCO2eq/MJH2 LHV

Between t1 and t2:



Calculation output



In accounting



43

Elec. consumed

(MWh)

Renew. elec. GOs

purchased (MWh)


H2 batch

renew. share (%)

Between t1 and t2:

Elec. consumed

(MWh)

Renew. elec. GOs

purchased (MWh)



Calculation output



In accounting





Green Hydrogen


Guy de Reals

01/03/2018

Air Liquide

H2 from SMR with CO2 capture

Port Jerome - France

AIR LIQUIDE– SMR – Port Jerome

45

Key characteristics

• H2 production capacity: ~4500 kg/h

• H2 utilisation: Refining Industry, Merchant

• CO2 utilisations: Food industry, Water treatment

PH control, Green houses.


46

Key parameters

• Product H2 pressure: 25 bar

• Product H2 purity: > 99,9%

• CO2 Capture capacity: 100 000 t/y

HDS + Prereforming

Ref

orm

ing

Shift & Syngascooling

H2 PSA

CryocapTM

Storages

H2 Export

CO2 Export

Natural Gasimport

SteamExport


47General view


48PSA CRYOCAPTM


49

SMR

Presentation video

../Meetings/2017-11-20/CRYOCAP_DEF_VERSION PRESSE VA_1.mp4



50


H2 Production

12 months*

t1

ProductionBatch



Past Production

H2 withGreen GO

H2 withLC GO

Grey H2

< 91 gCO2/MJH2 ?


< 36.4 gCO2/MJH2 ?

< 36.4 gCO2/MJH2 ?


“CO2 stripped” share

Renewableshare

In the case of H2 from SMR with CO2 capture- Green H2 can be generated by use of

biomethaneOR- Low Carbon H2 can be generated by CO2

capture

* Or since joining the scheme if more recent



Hydrogen

production


Biomass input20 GJ

51



7 GJ

Renewable *:3 GJ

Renewable: 23 GJ

Non-renewable:7 GJ

23%

77%

Renewable H2

77%

Non-renewableH2

23%


H2 production by SMR with CO2 capture – Product System

52

SMRHDS

Water

Syngas

Flu

e g

as

Ste

am

SHIFTH2+CO2

H2+CO PSAHydrogen

CRYOCAPTM

Liquid CO2

H2+CO

+CO

2

CO

2+CO

+H

2

NG w/o S

Sulp

hur

Natural gas

Electricity

Product system

Feedstock

Fuel

The “product system” (ISO 14044) includes all the steps needed for generating hydrogen

with a purity of at least 99.9% and a pressure of at least 30 barg (CertifHy criteria).

(1) Footprint of Non certified H2 produced in the preceding 12 months

53

Steam produced

(MWh)

NG net emis. fact.

(tCO2eq/MWh)

Boiler & HX

efficiency (%)

CO2 produced

(t)H2 produced

(t)

H2 emissions

(tCO2eq)

Share sequestrated

(%)



Calculation output



In accounting






Emissions of cert.

product (tCO2eq)

Certified H2

produced (t)

Non-certified H2


Gas consumed

(MWh)

BioM GOs

purchased (MWh)

NG emis. factor*

(tCO2eq/MWh)

BioM GOs

purchased (MWh)

BioM GOs emis.

fact.* (tCO2eq/MWh)

NG gross emissions

(tCO2eq)

NG net emissions

(tCO2eq)

Gas consumed

(MWh)

Elec. consumed

(MWh)

Elec. GOs

purchased (MWh)

Elec. emis. factor

(tCO2eq/MWh)

Elec. GOs

purchased (MWh)

Elec. GO emis.

factor (tCO2eq/MWh)

NG net emissions

(tCO2eq)

Steam emissions

* including upstream emissions

Steam emissions

(2) H2 batch footprint (a) for issuing of Green H2 GOs

54

Between t1 and t2:1 tCO2eq/tH2= 8.33 gCO2eq/MJH2 LHV



Steam produced

(MWh)

Net NG emis. fact.

(tCO2eq/MWh)

Boiler & HX

efficiency (%)

H2 produced

(t)

H2 emissions

(tCO2eq)

H2 batch footprint

(tCO2eq/tH2)

NG net emissions

(tCO2eq)

NG net emissions

(tCO2eq)

Gas consumed

(MWh)



Calculation output



In accounting


Elec. consumed

(MWh)

Elec. GOs

purchased (MWh)

Elec. emis. factor

(tCO2eq/MWh)

Elec. GOs

purchased (MWh)

Elec. GO emis.

factor (tCO2eq/MWh)

Zero if GOs are

acquired for all

NG consumed

CO2 produced

(t)

Share sequestrated

(%)

Gas consumed

(MWh)

BioM GOs

purchased (MWh)

NG emis. factor*

(tCO2eq/MWh)

BioM GOs

purchased (MWh)

BioM GOs emis.

fact.* (tCO2eq/MWh)

Gross NG emissions

(tCO2eq)


Share of the batch that is of renewable origin

55

Gas consumed

(MWh)

BioM GOs

purchased (MWh)

H2 batch

renew. share (%)

Between t1 and t2:

Elec. consumed

(MWh)

Renew. elec. GOs

purchased (MWh)



Calculation output



In accounting


Determination of “CO2 stripped” H2 footprint

Rationale:

The Low Carbon batch footprint should not depend on the type or sizing of the CO2 capture

process, which are selected mainly in function of market needs.

Reference: IEAGHG Technical report, evaluating various scenarios of Carbon Capture on a typical standalone

SMR based H2 plant - 100 000 Nm3/h

56

Reference: H2 footprint with maximum CO2 capture (IEA GHG report option #3)

57

Steam produced

(MWh)

NG net emis. fact.

(tCO2eq/MWh)

Boiler & HX

efficiency (%)

CO2 captured

(t) H2 produced

(t)

H2 emissions

(tCO2eq)



Calculation output



In accounting



H2 footprint

(tCO2eq/tH2)

Gas consumed

(MWh)

BioM GOs

purchased (MWh)

NG emis. factor*

(tCO2eq/MWh)

BioM GOs

purchased (MWh)

BioM GOs emis.

fact.* (tCO2eq/MWh)

NG gross emissions

(tCO2eq)

NG net emissions

(tCO2eq)

Gas consumed

(MWh)

Elec. consumed

(MWh)

Elec. GOs

purchased (MWh)

Elec. emis. factor

(tCO2eq/MWh)

Elec. GOs

purchased (MWh)

Elec. GO emis.

factor (tCO2eq/MWh)

NG net emissions

(tCO2eq)

Steam emissions


Data from IEA GHG report

Feb 2017

433

0

0.256

0

111

433

11.2

0

0.070

0

80.0

30.9

86.6

80%

30.9

0.071

7.71

0.79

24.0

8.99

2.67

H2 footprint

(gCO2eq/MJH2)22.2

During 1 hour:

“Measured” Constant factor


Calculation output



In accounting


CO2 captured

(t)

H2 produced

(t)

Ref. CO2 capt. rate

for SMR (tCO2/tH2)

80.0

8.99

8.90

(2) H2 batch footprint and size (b) for issuing of Low Carbon H2 GOs

58

CO2 produced

(t)

Stripped H2

footprint

(tCO2eq/tH2)

Share sequestrated

(%)

CO2 sequestrated

(t)


Max footprint of stripped H2:


H2 gross emissions

(tCO2eq)Steam produced

(MWh)

NG net emis. fact.

(tCO2eq/MWh)

Boiler & HX

efficiency (%)

Gas consumed

(MWh)

BioM GOs

purchased (MWh)

NG emis. factor

(tCO2eq/MWh)

BioM GOs

purchased (MWh)

BioM GOs emis.

fact.* (tCO2eq/MWh)

NG gross emissions

(tCO2eq)

NG net emissions

(tCO2eq)

Gas consumed

(MWh)

Elec. consumed

(MWh)

Elec. GOs

purchased (MWh)

Elec. emis. factor

(tCO2eq/MWh)

Elec. GOs

purchased (MWh)

Elec. GO emis.

factor (tCO2eq/MWh)

Ref. CO2 capt. rate

for SMR (tCO2/tH2)

H2 produced

(t)CO2 potentially

sequestrated (t)

Share of H2

stripped of CO2 (%)

H2 produced

(t)

Stripped H2 amount

(t)

Share of H2

stripped of CO2 (%)

Net emissions of

stripped H2 (tCO2eq)

H2 produced

(t)

Between t1 and t2:

CO2 sequestrated

(t)

NG net emissions

(tCO2eq)

Elec. emissions

(tCO2eq)

Steam net

emissions (tCO2eq)

Elec. emissions

(tCO2eq)

NG gross emissions

(tCO2eq)

CO2 sequestrated

(t)

Share of H2 energy

in output (%)

H2 produced

(MWh)

H2 + steam

prod. (MWh)


8.90

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