H2Tech - Q1 2022 - 40

GREEN HYDROGEN PRODUCTION
Western Australia that enjoys extended
periods of sunshine and wind (including
both land and sea breezes), emphasizing
the present economic advantages of deploying
an H2
plant in this location.
Several studies have estimated how
the cost of green H2
evolve globally compared to blue H2
production will
, i.e.,
when the fall in the cost of renewable energy
and the cost of the electrolysis units
will result in convergence of green H2
costs with that of blue H2
mulate a policy regarding H2
. To better for-based
energy,
the Scottish government commissioned
a report investigating the future of
the H2
industry.5
that blue H2
The study report posits
will have a lower cost over
the next decade or so, with green H2
tentially competing with blue H2
from the mid-2030s onwards (FIG. 10).
poon
cost
Takeaway. In delivering the FEED for
a large-scale green H2
development, the
engineering team encountered several
challenges that are not typical for hydrocarbon
gas processing facilities:
* The type of electrolyzer
technology used in the plant was
chosen based on cost, reliability
and application considerations.
* The intermittency of renewable
power generation was resolved
by installing both wind turbines
and a solar photovoltaic (PV) array
to provide a steady power supply,
delivering backup via a connection
to the Western Australian grid and
a battery storage system.
* Feed water requirements for the
electrolyzer units introduced
wastewater management issues
that were dealt with through
close collaboration with the water
treatment unit vendor to minimize
reject H2
O and eliminate the
evaporation pond.
* The difficulty of storing large
quantities of HP H2
gas was
addressed by the unorthodox use
of piping for storage.
* The equipment supply chain
and environmental, health and
safety challenges were overcome
by applying good engineering
practices.
It is clear that the location of the plant
was a primary enabler for the project.
Western Australia possesses consistent
winds that blow an average of 18 hr/d, as
40 Q1 2022 | H2-Tech.com
well as abundant solar irradiance during
daytime. As a result, wind turbines are
able to generate power at high-capacity
factors (hence cheaply), which is then
augmented by power generated by solar
PV during daytime hours when the wind
is not blowing.
Transmission lines located nearby
provide access to the Western Australia
grid, enabling the plant to export or sell
renewable power to the grid in times of
excess output and buy back green power
whenever the onsite renewable power assets
are not generating enough electricity
to meet the requirements of the electrolysis
units to maintain H2
production.
The cost of renewable power in Western
Australia is low compared to regions
that may require offshore wind development
and locations that do not have the
complementing solar irradiance to ensure
steady H2
production and may require
other renewable sources (e.g., hydro)
to compete. Presently, the suitability of
green H2
in most other regions is unproduction
as
the dominant H2
will grow to overtake
source in an
likely to be as financially attractive. However,
as the cost of green H2
is forecast to fall globally over the coming
decades, green H2
blue H2
emissions-constrained future.
NOTES
a DNV's PHAST
LITERATURE CITED
1
International Renewable Energy Agency (IRENA),
" Hydrogen from renewable power: Technology
outlook for the energy transition, " 2018, online:
https://www.irena.org/-/media/Files/IRENA/
Agency/Publication/2018/Sep/IRENA_
Hydrogen_from_renewable_power_2018.pdf
2
Hydrogen Council, " Path to hydrogen
competitiveness-A cost perspective, " 2020,
online: https://hydrogencouncil.com/
wp-content/uploads/2020/01/Path-to-HydrogenCompetitiveness_Full-Study-1.pdf
3
Wood
Mackenzie, " Green hydrogen production:
Landscape, projects and costs, " 2019, online:
https://www.woodmac.com/our-expertise/focus/
transition/green-hydrogen-production-2019/
4 International Energy Association (IEA),
" The Future of hydrogen: Seizing today's
opportunities, " June 2019.
5
Scottish Government, " Scottish hydrogen:
Assessment report, " 2020, online:
https://www.gov.scot/publications/scottishhydrogen-assessment-report/pages/12/
CHET
BILIYOK is a Chartered
Process Engineer with 16 yr of
experience in process design,
project execution, technical
consultancy and R & D across the
energy industry. He has drawn on
previous experience working in oil and gas to
deliver projects in renewable/low carbon H2
,
carbon capture, utilization and storage (CCUS)
and waste-to-fuels, recently serving as the
Process Lead during FEED of the Arrowsmith
Green Hydrogen Project. Dr. Biliyok has authored
more than 20 peer-reviewed journal articles
and presented his work at major international
conferences. He is based in Petrofac's Woking, UK
office as the Technical Director of Petrofac's
New Energy Services and seeks to deliver
solutions that enable organizations to thrive
in a low-carbon energy future.
MICHAEL CZARNECKI is a
Chartered Chemical Engineer
with 17 yr of experience working
in process design and project
engineering management across
the energy industry. He works
as a Study Manager supporting
Petrofac's Engineering & Consultancy services
team in Petrofac's Woking, UK office. Mr. Czarnecki
recently project-managed the Arrowsmith Green
Hydrogen FEED Project. This project involved
the integration of wind turbine and solar PV
technology to electrolyze H2
from raw water.
He has a keen interest in low-carbon projects
and new technologies and is applying his experience
of working within the onshore and offshore oil
and gas sectors to new energy projects.
AHMED DAR has more than
25 yr of engineering experience
in the oil and gas, petrochemicals
and sulfur management sectors.
He has worked on a variety of
international projects for major
engineering contractors and
operating companies. His experience encompasses
all project phases, from project proposals to
conceptual design, feasibility studies and FEED
to detailed engineering. He is a subject matter
expert in sulfur recovery unit design, operations,
troubleshooting and performance optimization.
Mr. Dar joined Petrofac in 2018 and works as a
Consultant Process Engineer supporting Petrofac's
Engineering & Consultancy team in the Woking, UK
office. He recently provided process engineering and
design support on the Arrowsmith Green Hydrogen
FEED project and is interested in renewable energy
technologies and carbon capture and sequestration.
Mr. Dar earned an MS degree in advanced chemical
engineering and is a Chartered Engineer.
STEPHEN J. GAULD is the
Managing Director at Infinity
Blue Energy, based in Perth,
Australia. He has more than 20 yr
of experience in the oil and gas
sector working for some of the
largest global service companies
and operators, such as Baker Hughes GE, ENI,
ExxonMobil, Chevron, RocOil and Woodside.
Mr. Gauld is very experienced in managing project
delivery and cash flow and gained a wealth of
experience field testing and developing state-ofthe-art
rotary steerable and logging while drilling
technology. In the last 5 yr, he has delivered several
renewable energy projects from design, civils
and construction through commissioning and
now leads Australia's first commercial-scale
green H2
plant north of Perth.

https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2018/Sep/IRENA_Hydrogen_from_renewable_power_2018.pdf https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2018/Sep/IRENA_Hydrogen_from_renewable_power_2018.pdf https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2018/Sep/IRENA_Hydrogen_from_renewable_power_2018.pdf https://hydrogencouncil.com/wp-content/uploads/2020/01/Path-to-Hydrogen-Competitiveness_Full-Study-1.pdf https://hydrogencouncil.com/wp-content/uploads/2020/01/Path-to-Hydrogen-Competitiveness_Full-Study-1.pdf https://hydrogencouncil.com/wp-content/uploads/2020/01/Path-to-Hydrogen-Competitiveness_Full-Study-1.pdf https://www.woodmac.com/our-expertise/focus/transition/green-hydrogen-production-2019/ https://www.woodmac.com/our-expertise/focus/transition/green-hydrogen-production-2019/ https://www.gov.scot/publications/scottish-hydrogen-assessment-report/pages/12/ https://www.gov.scot/publications/scottish-hydrogen-assessment-report/pages/12/ http://www.H2-Tech.com

H2Tech - Q1 2022

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