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The Hydrogen Blog


PEM Electrolyzer Degradation Explained: Top Causes and How to Fix Them
Proton Exchange Membrane (PEM) electrolyzers have emerged as one of the most promising technologies for producing green hydrogen, a fuel that is increasingly seen as essential for decarbonizing heavy industry, long-haul transport, and energy storage. Their appeal lies in their ability to operate at high current densities, their compact design, and their responsiveness to fluctuating renewable energy inputs such as wind and solar. Yet despite these advantages, PEM electrolyzer
21 hours ago5 min read


Where do the "impurities" in hydrogen come from? In-depth investigation: cross-permeation, corrosion, and system contamination
In PEM (Polymer Electrolysis) water electrolysis hydrogen production systems, the purity of hydrogen produced at the cathode is one of the core indicators for evaluating system performance and reliability. We aim for not just "H₂", but "high-purity H₂". However, in reality, the produced hydrogen always contains trace amounts of "impurities," such as oxygen (O₂), nitrogen (N₂), water vapor (H₂O), and metal cations . These impurities not only affect downstream applications of
1 day ago6 min read


Balancing Coal Phase-Out and Energy Security: Germany’s Hydrogen-Enabled Transition
Germany to become a hydrogen country I. Current Transformation: Slowing Coal, Accelerating Renewables Germany’s energy transition has reached a decisive turning point. In 2024, renewable energy accounted for 62.7% of net public electricity generation , with solar power alone reaching a record 72.2 TWh Fraunhofer-Institut für Solare Energiesysteme ISE Bundesnetzagentur . Wind and solar together made up nearly half of the mix, while coal’s share fell to 21.9% , down from
1 day ago4 min read


Top Hydrogen Generator Manufacturers in 2026
Introduction: The 2026 Hydrogen Market Inflection Point The year 2025 has marked a pivotal turning point for the green hydrogen industry, transitioning from pilot projects to large-scale production. As global industries race toward carbon neutrality, the demand for reliable hydrogen generator manufacturers has surged. The economic logic is clear: producing hydrogen on-site using PEM (Proton Exchange Membrane) technology can deliver up to 79.3% cost savings compared to tradit
6 days ago3 min read


How a Flame Ionization Detector (FID) Works and Hydrogen’s Role in It
The Flame Ionization Detector (FID) is one of the most widely used detectors in gas chromatography and environmental monitoring because of its exceptional sensitivity to hydrocarbons. At its core, the FID operates by burning a sample in a hydrogen flame. When organic compounds enter this flame, they undergo combustion and partial ionization, producing charged fragments such as CHO⁺ and other carbon‑based ions. These ions are collected by electrodes under an applied potential,
Jan 164 min read


PEM Hydrogen Electrolysers and Europe’s Grid-Constrained Renewable Transition
Introduction Europe’s renewable energy transition has reached a decisive juncture. As highlighted in the attached research, the continent is no longer constrained primarily by the pace of renewable deployment or the availability of capital for wind and solar projects. Instead, the bottleneck lies in the electricity grid itself. Transmission and distribution networks, once considered supportive infrastructure, have now become the defining ceiling for renewable expansion. The a
Jan 166 min read


Understanding Equipment Selection for PV Green Hydrogen Power Plants
Green Hydrogen Power Plants The global shift towards renewable energy sources has catalyzed the development of green hydrogen production, particularly through photovoltaic (PV) systems. Green hydrogen, produced via the electrolysis of water for hydrogen using electricity from renewable sources, is seen as a key player in decarbonizing various sectors, including transportation, industry, and energy storage. This article discusses the identification of appropriate equipment for
Jan 146 min read


leXsolar and HOVOGEN Announce Strategic Partnership to Advance Global Renewable Energy Education and Hydrogen Training Solutions
January 6, 2026 – Hong Kong leXsolar , a pioneer in renewable energy education systems, and HOVOGEN , a leading innovator in hydrogen energy technology, today announced a strategic cooperation aimed at accelerating global awareness, training, and adoption of renewable energy and hydrogen solutions. leXsolar and Hovogen Announce Strategic Alliance at Hovogen Headquarters Preparing the Next Generation for the Energy Transition For over two decades , leXsolar has been dedicated
Jan 142 min read


Technological Pathways for Gray, Blue, And Green Hydrogen: Economic and Environmental Assessments and Their Role in Energy Transition
Against the backdrop of global efforts to address climate change and pursue deep decarbonization of the energy structure, hydrogen energy is widely regarded as a key component of the future clean energy system due to its advantages such as zero carbon emissions from combustion, high energy density, and wide range of applications (covering industry, transportation, energy storage, and power generation). The International Energy Agency (IEA), in its "Global Hydrogen Review 2023
Jan 59 min read


Dynamics and Future Prospects of the Green Hydrogen Market
The year 2025 marks a pivotal turning point for the green hydrogen industry, transitioning from pilot projects to initial large-scale hydrogen production. This review examines the multifaceted definitions of market inflection points, PEM electrolyzer technology advancements, cost reductions in industrial hydrogen generators, and hydrogen generation equipment developments , focusing on cost, capacity, application, investment, and policy developments. 1. Multidimensional Defi
Dec 26, 20255 min read


Can Hydrogen-Powered Homes Truly Reduce Heating Costs? An In-Depth Analysis of Economic Viability, Infrastructure Challenges, and Future Outlook
A "hydrogen ready" gas boiler. https://www.cleanenergywire.org/ 1. Current Development Status of Hydrogen-Powered Homes Hydrogen-powered homes are emerging as an innovative solution in the global clean energy transition. Pilot projects such as Scotland’s H100 Fife initiative and similar programs across the European Union have demonstrated the technical feasibility of using hydrogen for residential heating and cooking. However, the critical question of whether these systems ca
Nov 13, 20252 min read


Hydrogen Energy in Buildings and Residential Areas: Market Insights and Real-World Applications
Hydrogen energy is rapidly emerging as a key solution for decarbonizing residential and building energy systems. Supported by robust market data and successful global implementations, hydrogen offers a sustainable pathway to reduce carbon emissions in heating, electricity, and transportation. Below, we explore the latest market trends and real-world case studies that demonstrate hydrogen’s growing role in the energy transition. Illustration of a typical use case scenario for
Nov 13, 20252 min read


The Shift from Helium to Hydrogen in Gas Chromatography Explained
Gas Chromatography (GC) has long been a cornerstone of analytical chemistry, enabling scientists to separate, identify, and quantify...
Sep 30, 20254 min read


Impact of Water Quality on Energy Consumption in PEM Water Electrolysis for Hydrogen Production
Proton Exchange Membrane (PEM) electrolysis has become a mainstream method for hydrogen production due to its high efficiency, large...
Sep 30, 20253 min read


Understanding the Thickness Limit of Proton Exchange Membranes in Proton Exchange Membranes
Introduction Reducing the cost of hydrogen production via PEM water electrolysis requires focusing on lowering the ohmic losses, which...
Sep 30, 20254 min read


Understanding Hydrogen Crossover and Oxidation Reactions in High-Pressure PEM Water Electrolyzers
Introduction This study evaluates hydrogen crossover in standard PEM Membrane Electrode Assemblies (MEAs) under high differential...
Sep 30, 20254 min read


Scalable Fabrication of Pt Composite Layers for PEM Water Electrolysis and Suppression of H2 Crossover
Introduction In PEM water electrolysis, hydrogen crossover through the membrane is a critical safety issue. To reduce hydrogen concentration and ensure efficient operation, a Pt-based hydrogen recombination layer is incorporated into the Membrane Electrode Assembly (MEA). This study develops a scalable method to integrate a composite catalyst layer into the MEA. Using slot-die coating, an insulating resin layer followed by a Pt composite recombination layer (each 5 μm thick)
Sep 30, 20254 min read


How On-site Hydrogen Improves Forklifts Efficiency in Warehouse
In the fast-paced world of logistics and warehousing, efficiency isn’t just a goal—it’s a necessity. Every second counts, and businesses ...
Sep 23, 20251 min read


Core Challenges Facing the Green Hydrogen Economy
The green hydrogen economy faces two fundamental hurdles: cost competitiveness and market mechanisms . This section explores the root...
Sep 23, 20253 min read


Japanese Scientists Invent Solid-State Hydrogen Battery, Bringing Hydrogen-Powered Vehicles One Step Closer to Reality
Hydrogen energy is hailed as the ultimate clean energy of the 21st century. But have you ever wondered why hydrogen-powered vehicles...
Sep 23, 20252 min read


Analysis on Performance Degradation Mechanisms for PEM Electrolyzer Durability Tests
Introduction: For large-scale hydrogen production, durability is crucial. PEM Electrolyzer requires lifetimes between 40,000 and 80,000...
Sep 23, 20254 min read


China's PEM fuel cell breakthrough reduces platinum use and boosts power with a COF-enhanced catalyst layer
Researchers in China have dramatically reduced platinum consumption to improve the efficiency of PEM fuel cells . The commercialization...
Sep 18, 20252 min read


High-Purity Laboratory Hydrogen Generators for Precision Use
Whether you’re running gas chromatography carrier gas systems or fuel cell testing protocols, choosing a hydrogen generator for...
Sep 16, 20253 min read


Off-Grid Hydrogen Production Systems: Powering the Future with Industrial Hydrogen Generators
As the global energy landscape shifts toward sustainability, hydrogen has emerged as a key player in the clean energy transition. With...
Sep 10, 20253 min read
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