The project accomplished two major objectives for the first time – 50% green hydrogen co-firing as well as 100% pure hydrogen combustion. The facility allows for the complete mixing and burning of hydrogen as well as pulverised coal within the boiler. It attains the first application of hydrogen co-firing in the world at a 50% heat input ratio within a 40 MW coal-fired boiler. This technology can decrease the use of coal and carbon emissions as much as 50% and also greatly reduce nitrogen oxide emissions. It can also enable the utilisation of green hydrogen, if needed, with on-site solar and storage.

Based on pilot projects

It is worth noting that this latest development corresponds to a large-capacity pilot-scale hydrogen-coal co-firing test from Yantai Longyuan Power Technology, which happens to be a subsidiary of CHN Energy Technology & Environment Limited, on June 7, 2026. The test was done at the 40 MW Boiler Clean Combustion Engineering Laboratory of the company.

Apparently, the project employs a completely self-made low-NOx burner for 50% green hydrogen co-firing and also a safety net for the whole process, right from hydrogen delivery to in-furnace combustion.

Green hydrogen is produced by way of using renewable energy like wind and solar, and when it is ignited, it goes on to emit just water, making it a zero-carbon fuel. The project developers happen to say that this accomplishment offers a viable technical path in terms of large-scale reduction of carbon at current coal-fired power plants located in China.

Interestingly, the project will also play quite a significant role in fostering the combined development of coal power and renewable energy along with the green and low-carbon evolution of coal-fired power generation.

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Instead of using grid power, this first 150MW green hydrogen project in Spain is built around off-grid solar power. This is the key. H2Pro’s system is being touted as an ideal match for variable renewable generation since it can track solar output more easily than standard systems. If the plant works at scale, it could be an effective model for producing hydrogen directly from cheap solar power rather than waiting for grid upgrades.

H2Pro develops electrolysers designed specifically to integrate with variable renewable energy. The company’s technology allows the production of hydrogen to be aligned with the availability of renewable electricity, making it suitable for an operational model based on dedicated off-grid photovoltaic generation.

Traditional electrolysers were developed for continuous base-load power. Supply them the variable output of a solar field, and they degrade gas crossover becomes a safety concern, membranes fail, and efficiency drops at partial loads. The industry’s response has been to mitigate the problem with batteries or grid backup. That adds cost and eliminates the purpose of cheap renewable electricity.

H2Pro’s system is the opposite. The Decoupled Water Electrolysis – DWE approach generates hydrogen and oxygen at different times using the same bi-functional electrode. Electricity at the electrode creates hydrogen, and a counter-electrode is charged up like a battery. Then the current is reversed, the counter-electrode is discharged and oxygen evolves. Two discrete steps. No gas produced at the same time and no membrane required to keep the steps distinct.

This means a system that can be turned on and off as frequently as required without hardware degradation, ramped up and down in real time in order to match solar output, and deliver hydrogen that fulfils the EU’s demanding RFNBO standards without grid backup. Earlier Chief Business Officer Rotem Arad said the efficiency is 10-15% higher than state-of-the-art PEM systems from minimal turndown up to nominal load conditions.

H2Pro’s decoupled water electrolysis technology splits the production of hydrogen and oxygen into two stages. Instead of generating both gases simultaneously through a membrane, the process employs a bifunctional electrode as well as alternating cycles. The company says this eliminates the requirement for expensive membranes and minimises the risk of hydrogen and oxygen mixing while making the system more suitable to short-term renewable power.

Sun Systems Group will supply a maximum of 220MW of photovoltaic capacity from a nearby project. H2Pro’s electrolysers plug directly into that generation DC to DC, and there is no grid in between. The first phase is 25MW, producing approximately 1,250 tonnes of green hydrogen every year. That grows to 50MW, subsequently to 150MW by 2032.

Initially the hydrogen will be injected into the natural gas transmission network of Enagás, with the project planned to directly connect into the H2Med corridor as that infrastructure is developed. The main customers are chemical as well as petrochemical users in the Tarragona industrial cluster.

This is the second project announced by H2Pro in Spain in the last three months. In March it entered a contract with Doral Hydrogen so as to develop a 5MW pilot in Extremadura, billed at the time as the first completely off-grid solar-to-hydrogen project in the world for gas grid blending, with plans to expand that to 50MW.

H2Pro says it will sell full electrolyser systems at 500€/kW. Western PEM and alkaline systems now average about $1,500/kW. That’s a three-to-one cost gap, and that’s the claim that will either formally define the company’s path or be quietly modified as projects transition from MOU to engineering design.

The company has raised over $100 million from investors, including Breakthrough Energy Ventures as well as GIC, which is Singapore’s sovereign wealth fund. Earlier in 2026, a 500kW system was brought online in Israel. It is well to be noted that Tarragona will be the first industrial-scale test to determine if the cost curve remains intact at 25MW, followed by 150 MW.

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The battery cannot just power electrical appliances but also realise efficient hydrogen storage at room temperature and pressure via a unique hydrogen-electricity co-storage mechanism.

The research, which was led by Prof. CHEN Ping at the Dalian Institute of Chemical Physics – DICP of the Chinese Academy of Sciences – CAS, was released in Joule in May, 2026.

One of the most significant obstacles that hinder the widespread implementation of hydrogen energy technologies is hydrogen storage. The traditional approaches require extreme conditions such as high-pressure compression of almost 700 atmospheres or cryogenic liquefaction at −253 °C which lead to high energy usage and safety concerns as well as increased complexity of the system. Therefore, the development of a secure, effective, and practical hydrogen storage technology that can function under the most ambient conditions is necessary for an eventual hydrogen economy.

Hydride ions – H- are the electron-rich form of hydrogen and happen to be highly reactive as well as energy dense, consequently announcing charge carriers for future all-solid-state batteries. Yet, their intrinsic unstable nature under ambient conditions has long blocked their practical implementation for electrochemical energy storage.

In the present study, a series of novel hydride ion electrolyte materials were synthesised in order to accomplish stabilisation of hydride ion conduction, which has been a priority of CHEN’s group since 2018. The team disclosed the first low-temperature ultrafast hydride ion conductor and the first all-solid-state hydride ion prototype battery in the years 2023 and 2025, respectively. Creating on these developments, the researchers have suggested the idea of a gas-solid hydride ion battery.

In this work, the team built the initial g-HIB using magnesium metal and hydrogen gas as both positive and negative electrode active materials, respectively. When it comes to discharge, hydrogen is degraded to hydride ions at the positive electrode, and magnesium is oxidised to magnesium hydride in the negative electrode. The reverse process happens at the time of charging, which enables parallel storage of hydrogen and electricity.

This first g-HIB battery in world combines hydrogen storage capacity with a theoretical capacity that outstrips the best-known battery systems. The findings from the experiments indicated that the battery had a maximum initial discharge capacity of 1,526 mAh g-1 throughout hydrogen charging. Almost 6.0 wt% of hydrogen, which is based on MgH2 in the electrode was discharged at room temperature under 0.3 V. The capacity retention was higher than 70% after 60 cycles, and the battery was stable over a broad range of temperatures of −20 °C to 90 °C.

In addition, a pair of stacks of ten single cells produced an output voltage of over 2.4 V and powered an LED light, which gave birth to the gas–solid hydride ion prototype battery.

The team also showed noteworthy energy efficiency benefits in comparison with traditional thermal hydrogen storage methods. In common Mg/MgH 2 thermal storage systems, hydrogenation calls for significant heat to be eliminated, while dehydrogenation calls for temperatures of about 300 °C. The g-HIB, however, transforms the heat released at the time of hydrogenation straight away into electrical energy while employing electrical energy to power hydrogen release. The overall energy efficiency is 93.9%, which is approximately one third greater compared to that of standard thermal hydrogen storage systems.

The researchers said the study has found a new way to navigate one of the most enduring obstacles in hydrogen energy storage. The technology could as well pave the way for next-generation hydrogen storage systems, cutting out the requirement for extreme pressure or even cryogenic conditions.

For instance, the g-HIB could as well go on to serve as an effective hydrogen storage unit in hydrogen-powered drones, functioning at ambient conditions and greatly increasing flight longevity.

As per Chen, “Our future work will focus on developing higher-performance hydrideion conductors and electrode materials to further improve battery performance and accelerate the practical deployment of hydrideion battery technologies for hydrogen energy applications.”

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The two companies will work together to facilitate secure transport of liquid hydrogen from production plants, especially Duqm in Oman, according to a strategic partnership signed at the World Hydrogen Summit 2026, which was held in Rotterdam.

The involvement of Oman in the Liquid Hydrogen Corridor project was initially announced in April 2025 in a state visit of His Majesty Sultan Haitham bin Tarik to the Netherlands. The highlight of the meeting was the execution of a Joint Development Agreement – JDA by 13 European and Omani businesses and organisations pledging to carry out the corridor initiative.

The project is set to help with the export of RFNBO-compliant liquid hydrogen from the Port of Duqm and other production sites in Saudi Arabia and Spain as well as Brazil to the Port of Amsterdam and prominent logistics centers in Germany, such as the Port of Duisburg, for subsequent dispatch to European markets.

A major player in this logistics chain is EcoLog, which has begun preliminary work on a first-of-its-kind hydrogen import terminal located at the Port of Amsterdam. The EcoLog Terminal Amsterdam is designed as an open-access terminal for large-scale hydrogen import, distribution and storage for Northwest Europe, connecting manufacturing centers to industrial users. The first phase of the terminal is scheduled to be finished by 2030 end.

According to the foundational Joint Development Agreement JDA which was signed in 2025, the Port of Duqm is expected to be designated as the site of a significant hydrogen liquefaction, storage and export terminal. OQ, the integrated Omani energy group, will build the liquefaction and export infrastructure, whereas the orchestrator of Oman’s green hydrogen sector, Hydrom, is going to be responsible for the coordination of upstream production.

The facilities are expected to capitalise on the renewable hydrogen projects and strategic location of Duqm so as to support the national hydrogen ambitions of Oman alongside the transcontinental corridor.

Sophie Hermans, the Dutch minister for climate and green growth, also reviewed the Dutch partnership with Oman in the Oman-Europe Liquid Hydrogen Corridor along with additional hydrogen projects.

According to her in a post, “During the summit, I also spoke with Germany, Denmark, Oman and South Africa, among others, about international cooperation in the field of hydrogen. Several international agreements were also signed, including a letter of intent between Kawasaki and EcoLog for the transport of liquid hydrogen from Oman to Amsterdam, among others. With our ports, industry and energy infrastructure, the Netherlands is in a strong position to become an international leader in hydrogen. With the first kilometres of the network, we are demonstrating that we are not only talking about the hydrogen economy of the future but actively building it.”

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The Korea Chamber of Commerce and Industry – KCCI Sandbox Support Center said on May 26, 2026 that the Ministry of Trade, Industry and Energy’s Industrial Convergence Regulatory Sandbox Review Committee went ahead and granted demonstration exemptions to overall 12 cases, which included three projects that it supported.

These include Hydrogen Production System with Solid Oxide Electrolysis Cell – SOEC and a Gaseous Hydrogen Infrastructure Underground Demonstration.

Unlike traditional electrolysis that breaks down water via electricity, the SOEC-based hydrogen production system, for which a consortium led by POSCO Holdings had applied, makes use of a solid – ceramic membrane in order to split hot steam into hydrogen and oxygen.

The system makes use of less power than the present electrolysis methods and is anticipated to contribute to a successful reduction of production expenses when utilising high-temperature heat from steel mills or industrial complexes.

The review committee gave the nod to the demonstration exemption considering the benefits such as obtaining core SOEC technology, establishing the foundation for commercialization, and revitalizing the domestic electrolysis industry of Korea. But the consortium also has to meet additional requirements such as setting demonstration safety norms, developing safety management strategies, and setting up a committee to oversee safety.

For the demonstration, the POSCO Holdings consortium is going to develop a single 100-kilowatt SOEC system at the Jeonnam Technopark Electrolysis Performance Evaluation Center which is located in Yeonggwang County at the South Jeolla Province.

On May 26, 2026 itself, an approval was also given to the demonstration project for underground facilities of gaseous hydrogen by Korea Institute of Civil Engineering and Building Technology – KICT consortium. The project includes the underground installation of hydrogen storage vessels, fuel cells and various other gaseous hydrogen infrastructure and verification of the procedure of storing, distributing, and producing electricity from hydrogen. Gaseous hydrogen stored in conventional underground storage vessels shall be provided to hydrogen fuel cell power generation plants so as to produce electricity to power the facility.

KICT went on to say that it has developed technology for hydrogen power generation in a standard setting with safety equipment, and the sandbox is a space to test safety. This should help to decrease the burden of safeguarding above-ground sites, while safeguarding equipment from outside forces and minimizing the consequences of accidents.

The review committee felt that underground siting of high-pressure gas facilities could enhance the public acceptance and it is anticipated to energies the hydrogen economy. Yet, this project is also subject to extra security conditions. The KICT consortium will develop and commercialize a single underground gaseous hydrogen infrastructure facility at the Korea Clean Hydrogen Promotion Institute in Pyeongtaek, Gyeonggi Province.

Lee Jong-myung, the head of KCCI’s Industrial Growth Division remarked that “Through technology that lowers hydrogen production costs, we have laid a stepping stone toward clean hydrogen production, hydrogen-based steelmaking, and decarbonization of industrial processes.”

The regulatory sandbox system, which was introduced in January 2019, has issued a total of 934 approvals for industrial convergence sandbox exemption. KCCI operated the Sandbox Support Center since May 2020, and has supported 416 of those projects to obtain certification.

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The proposed Renewstable power plants mix solar power with lithium-ion batteries and hydrogen storage. These hydrogen power plants in the Philippines are designed to provide non-intermittent baseload power by coupling renewable energy sources with onsite green hydrogen storage. HDF Energy is additionally creating mass production infrastructure for carbon-free hydrogen.

Chairperson & Undersecretary Alessandro Sales and committee vice chair Undersecretary Ronald Conquilla from DOE Hydrogen Energy Industry met with HDF Energy representatives so as to discuss the projects.

The engagement reinforces DOE’s dedication to low-carbon alternative fuels and efficient energy technologies in order to enhance energy security while lowering greenhouse gas emissions, the DOE said.

In 2024, the DOE had gone on to issue a circular to set a national policy and roadmap for hydrogen. Hydrogen could decrease dependence on imported fossil fuels with usage in the power, transport and industrial sectors, officials said. Under such a policy, hydrogen production with nuclear power may be eligible as an energy efficiency project.

They can take advantage of incentives according to the Renewable Energy Act of 2008, such as income tax holidays and duty-free importation of equipment. Incentives under the Electric Vehicle Industry Development Act could also be applied to hydrogen for fuel cell vehicles.

HDF Energy Philippines, the DOE, as well as the Mindanao Development Authority, in 2025 signed a memorandum of understanding in order to promote research on locally produced green hydrogen.

The deal is part of the government’s efforts so as to decarbonise the power sector in the framework of a broad energy transition strategy.

France-based HDF Energy is to begin mass production of multi-megawatt fuel cells at a site near Bordeaux in 2025.

They convert hydrogen to electricity for power generation and maritime shipping as well as rail. HDF Energy has been listed on the Euronext Paris stock market since 2021 and has a portfolio of projects of more than 5 billion euros.

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All-season renewables

It is a clever way of integrating renewable energy. When the wind and solar farms are throwing more power than the grid can take, you run it through electrolytic hydrogen production. It splits water into hydrogen and oxygen, and then you compress or liquefy that hydrogen and store it until it’s needed. When renewable output drops, you shoot it through fuel cells or turbines, and carbon-free electricity flows that only produces water as a by-product.

Addressing real-world problems in difficult-to-abate industries

Batteries can last for a few hours or even days, but they struggle when the winter drags on or grey skies appear. That’s where electrolytic hydrogen comes in. It provides you a real long-duration energy storage solution that fills in those seasonal gaps. This is exactly what big emitters such as steel mills, ammonia plants and refineries need to do to make a big dent in global CO2 emissions.

Made in Norway, made for Europe’s tomorrow

Nel ASA, which traces its roots back to 1927, has been going full throttle on hydrogen tech since 2014. Today their alkaline and PEM electrolysers roll off the Norwegian assembly line and are shipped all over the world. Using local manufacturing excellence and advanced hydrogen expertise, they are driving down costs and quickening deployments all across Europe’s backyard.

More energy security and jobs

It’s not just about reducing carbon. It’s a job opportunity. The construction and installation of these large-scale electrolysers creates manufacturing jobs, installation crews and maintenance teams. Soon you have the aftermarket for spare parts, regional suppliers on board as well as local economies getting a serious boost.

Adapting to evolving policy environments

Nobody is arguing that green hydrogen needs good policies subsidies, incentives, and clear certification. Nel’s roadmap is fully in line with the net-zero ambitions of the EU and the emerging hydrogen strategies of member states. By proving the tech at scale, they are helping to write the rulebook regulators must have to see a broader rollout.

Costs and security

Of course, installing electrolysers and storing hydrogen safely is not cheap with a large upfront investment and stringent safety standards. Nel is confident, with decades of experience with industrial hydrogen and steadily falling equipment prices. Modern electrolysis plants are about as safe as it gets, thanks to smart design and tight local regulations.

Hydrogen-powered grid in sight

As Europe accelerates towards net zero, the demand for long-duration energy storage will only grow. Green hydrogen is no substitute for batteries; it unlocks versatility that allows renewable energy projects to store power across seasons, transforming a surplus into a strategic asset rather than a lost opportunity.

Currently, Nel’s plan is for a 200 MW electrolyser installation as a proof of concept, but they are still working out the finer details. What is beyond dispute is that large-scale green hydrogen is moving from the lab demonstrations to real-world use cases, addressing real issues for power grids as well as heavy industry.

This initiative shows that green hydrogen is greater than just a trendy term, with homegrown manufacturing and new job opportunities as well as carbon-free operation. It’s a practical, scalable solution to address long-duration energy storage, increase energy safety and drive decarbonisation developed in Norway and ready to fuel Europe’s tomorrow.

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Connecting Energy Reliability as well as Sustainability in Hospitals

The building sector is responsible for an important portion of global energy consumption and carbon emissions. Hospitals, for example, make up the most energy-intensive facilities and require very reliable and uninterrupted power.

The intermittent nature of solar power limits its potential to independently meet hospital demands, creating a consistent gap between the demand and supply of energy.

Previous studies have looked at hybrid energy systems with solar and batteries or hydrogen storage. These systems boost efficiency and lower emissions, but most of these approaches focus on system sizing or static optimisation. Real-time control and dynamic operation are frequently overlooked, which are the keys to high reliability in healthcare scenarios.

This study intends to address this limitation by designing an integrated solar-hydrogen energy system with AI-based optimisation. The system is composed of photovoltaic panels, an electrolyser, and hydrogen storage along with a fuel cell integrated into a single framework. A supervisory control algorithm controls the energy flows in real time, giving priority to solar usage and ensuring the system’s stability and reliability. The design strives to minimise costs and emissions and strengthen energy resilience.

The results show that the system enhances the overall energy performance and the co-production of medical oxygen throughout hydrogen generation. This extra functionality makes it more useful for healthcare applications. In the end, the study points out how intelligent energy management can contribute to the move towards hospitals with near-zero energy consumption.

System Design AI Optimisation Simulation

In this study, a holistic simulation-based framework is used for precise and consistent assessment of the system. It incorporates building energy modelling, renewable energy system simulation and sophisticated optimisation techniques into one single workflow. The first step involves the creation of a model of a hospital building in OpenStudio and EnergyPlus based on the standards of the U.S. Department of Energy.

The model predicts explained energy demand profiles, including heating, ventilation and air conditioning – HVAC operations, medical equipment loads, along with occupancy profiles. It indicates a multi-floor hospital, and it determines the hourly energy demand for a full year to account for realistic operating conditions.

Then the renewable energy system for hospitals is modelled through the use of Transient System Simulation TRNSYS. It comprises photovoltaic panels, an electrolyser, a fuel cell, hydrogen storage tanks, and oxygen storage units. Solar energy is the main power source throughout daylight hours. The system electrolyses the excess electricity into the gas and stores it for use later. As solar generation decreases, the fuel cell transforms the hydrogen back into electricity so as to keep the energy flowing.

System operation is governed by a supervisory control algorithm. It prefers direct use of solar, hydrogen storage, and then grid electricity as a fallback. The study results in a dataset based on Sobol sampling and TRNSYS simulations for optimisation. An artificial neural network undergoes training as a surrogate model in terms of system performance prediction. Then a genetic algorithm scans optimal configurations so as to balance cost and carbon emissions as well as system reliability.

Performance, Energy Balance and Efficiency

The integrated system works well in the Beijing climate. The model is validated against continuing research and experimental data, and the deviation in photovoltaic performance is less than 4%, which indicates the reliability of the model. The system reduces dependence on the grid to a great extent. Photovoltaic panels cover 45.22% of the total electricity demand, while hydrogen storage covers 32.84%. The grid only accounts for 21.94%; thus, the system is operated with more than 78% of the hospital energy demand supplied from renewable sources.

The system performance is highly dependent on seasonal variations. Solar generation is highest in summer, when the radiation is higher and the daylight hours longer, but it falls off sharply in winter. Hydrogen storage may make up for this fluctuation by providing stored energy, guaranteeing a constant and stable power supply regardless of low solar periods. Also, the system reacts well to altering energy demand. Electricity consumption rises in the summer months with increased cooling needs and falls in the winter months with the use of other sources of heat. The hybrid configuration efficiently handles these fluctuations, and stability of the system is maintained.

In addition to supplying energy, the system offers an important healthcare advantage by producing oxygen. The electrolyser generates medical-grade oxygen and hydrogen, enabling thousands of oxygen cylinders to be produced annually.

The optimisation results show the benefits of AI-based control. The optimised configuration consists of a large number of photovoltaic panels and correctly sized electrolyser and fuel cell units. The result is lower operating costs and a big reduction in CO2, estimated at some 2000 tonnes per annum. Overall, the results show that the combination of solar energy, hydrogen storage and AI-based optimisation provides a reliable, efficient and sustainable energy solution in terms of hospital applications.

AI & Hydrogen for Hospitals with Near-Zero Energy

The present study shows the significant potential of the integrated solar-hydrogen systems in healthcare applications. The blend of PV generation, hydrogen storage and smart control is a robust and dependable energy solution. It reduces carbon emissions significantly and reliance on fossil fuels.

A major contribution of this study is the use of AI-driven optimisation. The method combines neural networks as well as genetic algorithms to overcome the shortcomings of traditional simulation methods. It allows designing systems faster, improving precision and making effective real-time decisions.

The system adds value by generating medical-grade oxygen, too. The electrolyser also produces oxygen, which will increase the hospital’s self-sufficiency and support critical health care. This ability is particularly critical during times of emergencies or supply interruptions, such as natural disasters or pandemics, when access to medical-grade oxygen may be compromised.

This research contributes to the trend towards sustainable buildings and low-carbon infrastructure. It showcases the application of advanced energy systems in essential amenities such as hospitals. The fact is that AI-optimised solar-hydrogen systems represent an encouraging path to near-zero energy hospitals. They boost energy security, decrease ecological effects and support healthcare robustness.

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This first hub in the U.S. is going to be operated by the subsidiary of the company, Charbone Corporation USA, and goes on to mark a key strategic milestone when it comes to roll out of the integrated production and distribution network of the company in North America. The Albany site apparently is going to productively serve a varied industrial client base which spans the artificial intelligence, semiconductor, healthcare, aerospace, as well as advanced industrial process sectors, that are positioned strategically in the middle of the Northeast technology region.

According to the President and CEO of Charbone, Dave Gagnon, “Albany is much more than a new hub for Charbone. It’s our strategic entry point into the United States. We’re building a local infrastructure to supply essential molecules to the industries of tomorrow, with UHP quality standards, reliable execution, and a long-term vision. This hub positions Charbone at the heart of a key technology ecosystem and strengthens our ability to become a leading industrial gas player in North America.”

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The project was carried out based on the high-quality salt rock resources of a gas storage and salt chemistry company in China Pingmei Shenma. The most important technological breakthroughs were spearheaded by the Institute of Rock and Soil Mechanics of the Chinese Academy of Sciences, alongside the participation of China National Petroleum Corporation – CNPC and China Petrochemical Corporation – Sinopec in design and construction.

As per Liang Wuxing, China Pingmei Shenma’s deputy chief economist, the project aims to build a salt cavern with a water-soluble volume of over 30,000 cubic meters along with a hydrogen storage capacity of 1.5 million standard cubic meters.

Currently, the project utilises two compressors in order to inject hydrogen at a pressure of 15 MPa and at a flow rate of 2,000 standard cubic meters per hour. According to Yang, the project has confirmed the long-term sealing capability and engineering feasibility of hydrogen storage in layered salt rocks.

The project’s engineers have pledged to investigate further possibilities when it comes to large-scale hydrogen power utilisation and proactively encourage diversified application scenarios like hydrogen-blended natural gas, hydrogen-powered heavy-duty trucks as well as hydrogen-fired boilers.

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