This special interest group is for professionals to connect and discuss all types of carbon-free power alternatives, including nuclear, renewable, tidal and more.

Publication

IRENA | Innovation trends in electrolysers for hydrogen production Patent Insight Report

image credit: Irena
Charley Rattan's picture
World Hydrogen Leader Charley Rattan Associates

UK based offshore wind & hydrogen corporate advisor, broker and trainer; Faculty member World Hydrogen Leaders. Delivering global hydrogen and offshore wind corporate investment brokerage....

  • Member since 2019
  • 3,172 items added with 2,129,475 views
  • May 28, 2022
  • 309 views

Access Publication

Renewables-based hydrogen can be used as feedstock for the chemical sector and as fuel in fuel cells where the only by-product is water. It can also replace fossil sources in synthetic fuels, for example, when combined with captured carbon. Additionally, hydrogen is abundant and can be obtained through the electrolysis of water, using renewable electricity, in the presence of electrocatalysts. These factors make hydrogen very attractive as a green energy source – but only provided that its production, through electrolysers, is green too.

The new report tracks the evolution of patent filings over the last 15 years and highlights several trends, including:

  • In 2016, the number of patent families for water electrolysis technologies surpassed the number of patents related to producing hydrogen from fossil sources (e.g. solid or liquid coal and oil-based hydrogen sources).
  • In 2018, inventions for electrocatalysts based on cheaper minerals surpassed the number of inventions based on more traditional but expensive electrocatalysts (which use e.g. gold, silver, platinum or other noble metals), confirming the drive for cheaper alternatives. This trend is pronounced and demonstrated by a surge in Chinese national patent filings.
  • Photo electrolysis is a strong newly emerging technology that can integrate electricity and hydrogen production in a single step, potentially lowering production costs. The report notes an above average number of international patent families in this area - some 50% of which are filed by universities.

Charley Rattan's picture
Thank Charley for the Post!
Energy Central contributors share their experience and insights for the benefit of other Members (like you). Please show them your appreciation by leaving a comment, 'liking' this post, or following this Member.
More posts from this member
Discussions
Spell checking: Press the CTRL or COMMAND key then click on the underlined misspelled word.

No discussions yet. Start a discussion below.

Get Published - Build a Following

The Energy Central Power Industry Network is based on one core idea - power industry professionals helping each other and advancing the industry by sharing and learning from each other.

If you have an experience or insight to share or have learned something from a conference or seminar, your peers and colleagues on Energy Central want to hear about it. It's also easy to share a link to an article you've liked or an industry resource that you think would be helpful.

                 Learn more about posting on Energy Central »