Green Hydrogen As A Key To Carbon Free Economy

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Green Hydrogen As A Key To Carbon Free
Economy As more countries are interested in
adopting decarbonization strategies, hydrogen has
a critical role. Applying this feat will be
particularly difficult in sectors where direct
electrification is challenging, for example, in
harder-to-abate sectors, such as steel,
chemicals, long-haul transport, shipping, and
aviation. The pre-requisite for this is for
hydrogen production to involve lower carbon and,
ultimately, a green mode of production. This
green hydrogen is produced by water electrolysis
using renewable forms of electricity. In addition
to system regulations and market design,
production costs are considered a significant
barrier to green hydrogen uptake. Prices of
renewable power sources are falling, but green
hydrogen is still double as expensive as the blue
hydrogen produced from fossil fuels, including
carbon capture and storage, making it
unsustainable. Further cost reductions are needed
to broaden companies' use of green hydrogen. The
most significant production cost component for
green hydrogen on-site generation is the
renewable electricity cost that powers the
electrolyzer unit. This cost challenge makes
green hydrogen production more expensive than
blue hydrogen, irrespective of the electrolyzer's
cost. Therefore, a lower price of electricity is
necessary to produce competitive green hydrogen
in the current scenario. Locations with optimal
renewable resources can effectively produce green
hydrogen to achieve a carbon-free advantageous
edge. Lowering the cost of electricity supply is
not enough to achieve a competitive green
hydrogen production. Along with this, reductions
in the price of electrolysis facilities are also
needed. This is considered the second largest
cost component in green hydrogen production it
identifies critical strategies that reduce
investment costs for electrolysis plants. These
strategies are multifaceted and can range from
the electrolyzer stack's fundamental design to
broadening the system -wide elements. Production
of Green Hydrogen Hydrogen production using water
electrolyzers can be equipped with an anion
exchange membrane (AEM), a water feed, and
several cheap components like platinum metal-free
catalysts and stainless-steel bipolar plates
(BPP). The AEM electrolyzers optimum performance
must have a compact design, stability, H2
purity, and high current densities of PEM
systems. The current technology in AEM water
electrolysis is defined by sporadic reports,
mostly dealing with catalyst or membrane
development. This technologys growth needs a
roadmap for the systematic development and
commercialization of AEM systems and their
components. The development of catalysts,
membranes, and ionomers for AEM electrolysis has
been sporadic, focusing on integrating the
various MEAs and cell testing components. As a
result, the best
2
performance data shown in AEM cells has been
obtained with commercially available materials.
Hence, developing these critical components of
this technology is essential for the systematic
development and commercialization of AEM systems
and components. Once the challenges of materials
development are covered, AEM water electrolysis
can drive hydrogen as an energy source in the
future, especially in developing
countries. Efficiency is only indirectly
indispensable what bothers is the cost. The
electrolysis processs overall cost comprises
the electrolyzer systems fee, including its
maintenance and replacement of damaged
membranes, the cost of the electricity, and
additional costs for drying, cleaning, gas
compression, and transport. For more information,
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