New Energies, new possibilities

Beijing, China – July 4, 2025 – In a significant move for the global energy sector, Beijing HYDROGENEE Energy Technology Co., Ltd. and Shaanxi HYDROGENEE SHUANGNENG Technology Co., Ltd. today unveiled their innovative "Yi Series" 3MW PEM and 100kW AEM electrolyzers at a grand launch event in Beijing. This release marks a pivotal moment for China's independent innovation in hydrogen energy equipment, offering compelling solutions for the global energy transition.

Responding to the "Double Carbon" goals, HYDROGENEE has spent two years developing the "Yi Series," achieving critical breakthroughs that promise to redefine the industry's technical and economic landscape. The new electrolyzers boast extreme safety, high differential pressure operation, and an ultra-long lifespan, addressing key barriers to widespread green hydrogen adoption.

The core innovations include:

• High Performance and Safety: PEM single cells can produce 600 Nm³/h and AEM single cells 20 Nm³/h, ensuring high output with an ultra-low leakage rate of 0.01%.

• Cost-Saving Operation: The 3.2MPa full-life cycle differential pressure operation technology is a game-changer. It not only eliminates hydrogen-oxygen crossflow risks but also removes the compression step in traditional processes, which accounts for a substantial 20% of energy consumption. This feature seamlessly integrates with the fluctuating characteristics of wind and photovoltaic power, enabling more efficient "wind-solar-hydrogen production" systems.

• Extended Service Life: Proprietary gradient membrane electrode and alternating sealing technology extend the equipment's operational life to 80,000 hours, significantly reducing maintenance and replacement costs.

Mi Wanliang, Chairman of HYDROGENEE, underscored the economic impact: "Our electrolyzers achieve an energy consumption level of 4 kWh/Nm³, which is 10% lower than international mainstream products. This, coupled with a 30-40% reduction in single-cell costs, positions China's green hydrogen equipment as economically superior to international peers." He also highlighted the vital role of domestic breakthroughs in low-iridium catalysts and gradient membrane electrode technology, which have completely ended foreign material monopolies, crucial for scaling the industry.

The collaborative spirit was evident, with Professor Zou Jijun of Tianjin University emphasizing the energy-saving benefits of the high differential pressure technology. Zhang Wenwei, General Manager of Shaanxi HYDROGENEE Shuangneng, noted that the fully domestically produced R&D system for the entire industry chain will foster innovation in supporting sectors, accelerating the creation of a robust and independent hydrogen energy ecosystem.

The product unveiling, attended by key government and academic figures, symbolized China's official entry into the global forefront of green hydrogen equipment. Deputy Mayor Li Lianlian of Dongsheng Town pledged comprehensive local government support, aiming to leverage HYDROGENEE's leadership to make "green hydrogen" a key driver for low-carbon development.

HYDROGENEE has already established a clear commercial roadmap. Their independently designed BOP system ensures full-scene coverage for isobaric/differential pressure structures, making the products versatile for applications in medicine, chemicals, electric power, and transportation. A 5,000-ton/year hydrogen production project utilizing the "Yi Series" is projected to save approximately 20 million yuan in electricity costs annually. This scale of efficiency is expected to make the cost of green hydrogen competitive with gray hydrogen two years sooner than anticipated, thereby fully unlocking the commercial market.

This launch is more than a product debut; it's a statement of China's growing influence in the hydrogen energy industry. By fostering a positive cycle of "technological breakthrough-cost reduction-market expansion," HYDROGENEE is accelerating the transition of green hydrogen from concept to widespread commercial reality, leading the green hydrogen revolution with both technological independence and strategic industrial collaboration to contribute to global sustainable development.

Source:HYDROGENEE

三菱重工グループの三菱重工エンジン＆ターボチャージャ（MHIET、神奈川県相模原市）は、東邦ガスと共同開発した、最大15％（体積比）の水素混焼が可能なガスエンジン・コージェネレーション（熱電併給）・システム「SGP M450」を新たに発売する。7月4日に発表した。発電出力は450kWになる。

　都市ガス専焼ガスエンジン「GS6R2」をベースに、燃料ガス系統やエンジン制御装置を水素混焼向けに改良した。従来のガスエンジンからの変更範囲を最小限にすべく、水素混焼率を最大15％に設定した。15％水素混焼時のCO2削減効果は約4％。

　都市ガス13A専焼モードと水素混焼モードを負荷運転中に任意に切り替え可能。また水素混焼では、エンジン始動時に都市ガスのみを用いる仕様とすることで、停電発生時の初期負荷投入量を都市ガス専焼仕様と同等にでき、BCP（事業継続計画）対応も可能にした。

　東邦ガス技術研究所で500時間以上の実証試験を行い、水素混焼時の信頼性やCO2削減効果を確認した。また、発電設備に必要な電力需要の変動に応じた調整力や、安定運転が可能であることを検証するため、さまざまな運転パターンを模擬して試験した。異常燃焼などのリスクがなく都市ガス専焼仕様と同じ運用ができることを確認した。

　このほか、将来の水素利用を検討する顧客向けに「水素レディ」パッケージも販売する。同パッケージは、初期導入時は都市ガス専焼仕様だが、あらかじめ水素混焼に必要な機能を組み込んだもので、水素混焼仕様への現地改造時に工事期間を短縮できる。

　三菱重工グループでは、ガスタービンの水素混焼についても研究開発を行っており、中型では100％、大型では30％混焼にめどをつけている（関連記事：高砂で「水素時代」を先取り、最新鋭火力に水電解装置を併設）。

水素混焼率15％のガスコージェネ、三菱重工が発売 - ニュース - メガソーラービジネス plus : 日経BP

A recent review in Nature Reviews Clean Technology presents, for the first time, a pathway for scaling up decoupled water electrolysis (DWE) technologies to produce industrial-scale green hydrogen.

Hydrogen, a key chemical feedstock, is usually produced from fossil fuels, generating high CO₂ emissions. Water electrolysis powered by renewable energy emits oxygen rather than CO₂ and offers a clean alternative. Green hydrogen production on an industrial scale is one of the holy grails of the energy transition, as it would unlock the potential of replacing the world's dependency on fossil fuels.

Conventional electrolysis uses two electrodes separated by a membrane to split water into hydrogen and oxygen. This approach is expensive, suffers from internal hydrogen leakage, and is incompatible with intermittent solar and wind power.

DWE overcomes these issues by separating the hydrogen and oxygen production in time or space, eliminating the need for membranes. Rather, it uses redox materials that can absorb and release ions from which oxygen or hydrogen are produced.

The article reviews different DWE methods and, for the first time, presents feasible scale-up pathways. The authors include leading experts from all over the world: Prof. Avner Rothschild of the Technion Faculty of Materials Science and Engineering, Prof. Mark D. Symes of the University of Glasgow, Prof. Jens Oluf Jensen of the Technical University of Denmark, Dr. Tom Smolinka of the Fraunhofer Institute for Solar Energy Systems ISE, Rotem Arad and Gilad Yogev from the company H2Pro, Technion postdoctoral fellow Dr. Guilin Ruan, and University of Glasgow doctoral student Fiona Todman.

Prof. Mark Symes and his collaborators at the University of Glasgow pioneered the original embodiment of decoupled electrolysis in 2013, using solution-phase redox mediators. He has continued his work on decoupled electrolysis using a variety of liquid-based systems and is actively trying to commercialize this technology through the company Clyde Hydrogen Systems.

In 2015, Prof. Avner Rothschild pioneered a new technology together with Technion colleagues Prof. Gideon Grader, Dr. Hen Dotan, and Dr. Avigail Landman, using nickel-based redox electrodes. Their breakthrough led to the founding of H2Pro in 2019.

Prof. Jens Oluf Jensen and Dr. Tom Smolinka are world-renowned experts on state-of-the-art electrolyzer technologies. Their work in proton exchange membranes (PEM), anion exchange membranes (AEM), electrode materials, and their application in cell stacks for large capacity PEM and AEM electrolyzers provided valuable insight into the challenges of scale-up and operation of commercial electrolyzers, and a sound base for comparison of disruptive decoupled and membrane-less electrolyzer concepts. Rotem Arad and Gilad Yogev provide insights into transforming these concepts into technologies for green hydrogen production at scale.

This review is the first to detail feasible scale-up strategies for DWE. While lab-scale DWE experiments produce less than a gram of hydrogen per day, industrial systems must generate about a ton daily—a million times more.

Indeed, meeting current hydrogen demand would require around a million full-scale electrolyzers. Conventional industrial electrolyzers, on the other hand, require a stable grid supply and can only be used to a limited extent with highly dynamic power fluctuations such as those caused by solar and wind energy.

DWE's unique advantage lies in its energy storage capability via redox materials, functioning like an electrolyzer with a built-in battery. This allows it to buffer energy fluctuations from renewable sources, making it highly compatible with solar and wind systems, thereby offering a critical pathway to low-cost, green renewable hydrogen production.

The potential impact of scaling up green hydrogen production is huge. The hydrogen market is currently worth about $250 billion annually. Once it becomes available on an industrial scale, the market for green hydrogen is expected to reach $550 billion within ten years.

"Green hydrogen is expected to account for 10% of the future energy market. Once it becomes possible to produce green hydrogen at large-scale and sell it at reasonable prices, hydrogen will replace a large part of the energy used in industry, heavy transportation, and other sectors," Prof. Rothschild predicted.

"Traditional electrolyzers should evolve to fit this market and, as noted by Darwin, it is not the strongest species that survives through evolution but, rather, the one that is best able to adapt and adjust to the changing environment in which it finds itself. I believe DWE would be it."

"Decoupled electrolysis is only about 12 years old. More conventional technologies, such as alkaline and proton-exchange membrane cells, have had decades (if not centuries) for development. This gives some context to the rate of scaling of some of the new decoupled systems starting to emerge," elaborated Prof. Symes.

"On the current trajectory, I expect that the next decade will see decoupled electrolysis systems becoming serious competitors to more conventional electrolyzers, especially for the conversion of renewable energy to green hydrogen."

The new ideas presented in the review article are compelling and shed light on the long-term prospects of scaling up DWE technologies for the benefit of all humanity.