UK Economy Grew in Q2, Revised Data Shows    1,200 publishing houses showcase titles as Riyadh Book Fair kicks off    Saudi Arabia joins IAEA board of governors    Weather Forecast for Friday    Investment Minister Chairs the Saudi Side during Meeting of Trade and Investment Committee between Saudi Arabia and China    Minister of Culture Meets with Malaysian Minister of Tourism, Arts and Culture    GCC Secretary General Affirms the GCC's Support of Security and Stability in Sudan    Minister of Culture Meets with Minister of Communication, Culture, Arts and Tourism of Burkina Faso    MWL Condemns Iranian Attacks on Iraqi Kurdistan    Bahrain Stock Exchange Indices Close Trading Higher    CITC, National Telecommunications Agency of Brazil Sign MoU    Crown Prince receives written message from Bangladesh prime minister    Prince Badr affirms Saudi Arabia's appreciation for UNESCO's efforts    Iran president says 'chaos' will not be accepted as protests continue    GASTAT: Saudi unemployment rate drops to 9.7% in Q2    FSDP sets SR45 target for individual insurance Medical insurance will increase to 45%    Crown Prince unveils Savvy Game strategy to invest SR142 billion in esports    Russia and West trade blame over alleged sabotage of undersea gas pipelines Nord Stream leak    Australian adviser to Suu Kyi gets three years jail in Myanmar    FSC Holds Meeting with Delegation from World Affairs Councils of America    Royal Commission for Jubail and Yanbu Signs Investment Agreements worth over SAR7 Billion    Board of Grievances, US Case Western Reserve University Sign MoU in Research and Training    KAPSARC: Saudi economy 60% more resilient to oil market shocks as a result of Vision 2030 reforms    Saudi Arabia to establish new unified regulator for insurance sector    Body of famed US climber found on Mt Manaslu in Himalayas    Yoga introduced to Saudi universities    Pregnant woman and her fetus rescued after being run over in Jeddah    'Gate to the East', all the way spectacular artwork from Saudi Arabia to China    Islamic Minister Al-Sheikh: Juristic judgment catalyst to salvage Islamic Ummah    Federer bows out of tennis with final match    Culinary Arts Commission Registers 13 Foods on Slow Food List of Endangered Food    Australian Football League: Racism allegations prompt calls for inquiry    F1 returns to Jeddah in 2023 March    72% of Children Globally have been Victims of Cyber Threats    Australian football club hit by 'harrowing' racism, bullying claims    Saudi National Football Team Continues Preparations for Friendly Match against Ecuador    Saudi Futsal Team Beats San Marino, Wins Silver in Croatian International Championship    During 2nd Global AI Summit.. AI-powered Early Breast Cancer Detection Program Launched    Triple talaq: India Muslim women in limbo after instant divorce ruling    Film Commission Reviews Film Industry Prospects in Saudi Arabia at Venice International Film Festival    Saudi national volleyball team loses to Kyrgyzstan in Asian Challenge Cup final    Saudi national volleyball team beats Uzbekistan, qualifies for the final of the Asian Challenge Cup    Ka'aba door bears witness to Saudi rulers' care for the House of God Kaaba' door, repentance' door contain more than 280 KG of pure gold    How Aamir Khan adapted Forrest Gump to Bollywood Laal Singh Chaddha    Custodian of the Two Holy Mosques Delivers Speech to Pilgrims, Citizens, Residents and Muslims around the World    Sheikh Al-Issa in Arafah's Sermon: Allaah Blessed You by Making It Easy for You to Carry out This Obligation. Thus, Ensure Following the Guidance of Your Prophet    Custodian of the Two Holy Mosques addresses citizens and all Muslims on the occasion of the Holy month of Ramadan    Pilgrims Perform Dhuhr and Asr Prayers at Arafat Holy Site    







Thank you for reporting!
This image will be automatically disabled when it gets reported by several people.



Green hydrogen's time is now
Published in The Saudi Gazette on 26 - 02 - 2022

For years, hydrogen has been the forgotten clean energy source. Since it was first proposed as a renewable energy source decades ago, things like hydrogen fuel cells have failed to catch on, even as other sources of green energy generation like wind and solar have become more widespread. But thanks to some recent advances in technology and other global factors, including important work done by KAUST scientists and the fuel source's importance in governmental plans to fight climate change, hydrogen may be about to get its moment in the (metaphorical) sun.
A critical part of the renewable energy mix
Although hydrogen is considered a clean energy source, the most common method of production today involves natural gas, meaning the process isn't completely free from fossil fuels and greenhouse gas emissions. This method is often referred to as grey hydrogen, and a blue version uses filters to capture greenhouse gases released during the process.
However, green hydrogen is created with renewable energy, meaning the entire process is carbon neutral and more sustainable. As the cost of renewable energy comes down, green hydrogen production will be more affordable. Green hydrogen is expected to be cost competitive with grey hydrogen within 10 years and 20-40 percent cheaper by 2050, according to Bloomberg New Energy Finance.
That is why regions with a lot of wind and solar, like Saudi Arabia and the American Southwest, will be critical as green hydrogen production is developed and refined, and it's why KAUST scientists have been leading research on green hydrogen for years.
In addition to the work being done on KAUST campus, the university has also partnered with NEOM, a futuristic region on the Red Sea that will be powered entirely by renewable energy. Green hydrogen will be an important part of NEOM's economy, so hydrogen innovations over the coming decades are necessary.
Producing renewable hydrogen
In green hydrogen production, a process called electrolysis employs an electric current to split water into hydrogen and oxygen in an electrolyzer. When hydrogen is produced this way, the only byproduct is water, yet it has the potential to provide clean energy for manufacturing, transportation, and more. However, today's water electrolysis technologies are capitally intensive and require high-purity, desalinated water, which is scarce in desert regions.
KAUST researchers are investigating methods of directly electrolyzing seawater to avoid the need for desalination. In addition, research conducted on novel and durable materials for electrolyzers is helping lower the cost of these systems. To optimize the operation of electrolyzers with intermittent renewable energy resources, KAUST researchers are developing tailored artificial intelligence algorithms for process control and optimization.
In addition to electrolysis, KAUST scientists are working on other ways to use hydrogen once it is produced. A major challenge with hydrogen is that it cannot be transported easily, so one solution is to convert hydrogen into fuels and chemicals that can be more easily transported.
Green hydrogen can be converted to carrier molecules such as ammonia, methanol, and formic acid, for example. KAUST scientists are researching the production and utilization of various hydrogen carrier molecules for industry, power generation, and mobility applications.
These advances in production are bringing the green hydrogen sector to a point where it is far more economically viable.
Decarbonizing transportation
One of the major use cases for green hydrogen is in decarbonizing transportation. While adoption of electric cars is encouraging, there are some elements of transport — marine shipping, heavy trucking, even airplanes — that we can't electrify with current technology.
While hydrogen fuel cells could work in some of these sectors, such as trucking, there is far more potential in E-fuels — synthetic fuels that result from the combination of green hydrogen and captured carbon dioxide.
E-fuel is how green hydrogen will help nations meet their ambitious climate goals. For example, to meet the goals of the European Green Deal, the transport sector needs to cut its greenhouse gas emissions by 80% to 95% by 2050.
It will be difficult, if not impossible, for nations to meet their ambitious climate goals through electrification alone. To close the gap, KAUST researchers are working intensively on the production of renewable transport fuels as well as on their utilization in high-efficiency propulsion systems.
Green hydrogen for the future
To get green hydrogen technology where it needs to be, it will require commitments from government in terms of funding and regulations. And governments are recognizing hydrogen's importance.
Last year, the US Department of Energy pledged 100 million over five years to advance hydrogen and fuel cell technology research and development. Additionally, the US government has indicated that within a decade, green hydrogen should be accessible at the same cost as conventional hydrogen.
Green hydrogen is also a critical part of the European Green Deal, the goal of which is to establish a carbon neutral economy by 2050. Saudi Arabia is taking a leadership position in the hydrogen economy with continued investment in large-scale industry projects and technological R&D.
It will take bold action and the decarbonization of many industries to achieve the goal of limiting global temperature rise this century to below 2 degrees Celsius. Green hydrogen can be the vehicle for that change. The time is now to make green hydrogen a more important player in the clean energy mix. — SG


Clic here to read the story from its source.