China Achieves Breakthrough in Clean Coal-Hydrogen Co-firing Technology

Chinese researchers have achieved a major breakthrough in clean, low-carbon coal-hydrogen co-firing technology, successfully demonstrating a 50% green hydrogen blending ratio and 100% pure hydrogen combustion for the first time. The advancement, announced on June 7 by state-owned China Energy Group, could significantly reduce carbon emissions from the world’s largest coal-fired power fleet while maintaining energy output.

A Critical Step for China’s Dual Carbon Goals

China operates the world’s largest installed coal-fired power capacity, exceeding 1,100 gigawatts, with coal accounting for approximately 60% of the country’s total electricity generation. The green transformation of this sector is widely regarded as essential to achieving China’s “dual carbon” goals — peaking carbon emissions by 2030 and reaching carbon neutrality by 2060.

The breakthrough validates a promising technological pathway for existing coal-fired power plants to dramatically cut emissions. As CCTV News reported, the achievement “is of great significance for China’s green low-carbon transformation of coal power and the integrated development of coal power with new energy.”

China’s hydrogen industry has been rapidly maturing. The country’s hydrogen production and consumption exceeds 36.5 million tons annually, accounting for 36.6% of global production — ranking first worldwide for consecutive years. Meanwhile, green electricity and green hydrogen production costs have been reduced by 50% compared to initial levels, making technologies like hydrogen-coal co-firing increasingly viable economically.

How the Technology Works

The system, developed by China Energy Group — the nation’s largest state-owned energy enterprise — employs a fully self-developed low-nitrogen burner designed for hydrogen-coal co-firing. A comprehensive safety protection system covers the entire process from hydrogen transportation to furnace combustion, enabling hydrogen and pulverized coal to be thoroughly mixed and combusted within the boiler.

On the experimental test platform, researchers achieved a 50% hydrogen blending ratio by heat value. When green hydrogen is used, coal consumption and carbon emissions can be reduced by up to 50%, with effective control of nitrogen oxide (NOx) generation, according to the Science and Technology Daily.

Policy Backing and Industry Context

The breakthrough comes amid strong policy support for hydrogen-coal co-firing in China. In March 2024, the National Energy Administration’s “2024 Energy Work Guidance” explicitly called for deep exploration of hydrogen and ammonia co-firing in thermal power. The National Development and Reform Commission later included “electricity-hydrogen-electricity” model demonstration projects in its first batch of green low-carbon advanced technology demonstration projects.

China Energy Group, formed in 2017 through the merger of China Guodian Corporation and Shenhua Group, has been steadily advancing its hydrogen strategy. In 2025, its wholly-owned subsidiary China Energy Hydrogen Technology Co. increased registered capital by 252%, and the group’s 2026 investment plan prioritizes hydrogen as a key emerging technology, including a large-scale wind-solar hybrid electrolytic hydrogen production project expected to produce 24,000 tons of green hydrogen annually.

Implications for Global Climate Efforts

As the world’s largest coal consumer, China’s ability to reduce emissions from coal-fired power through this technology carries significant global climate implications. The Global Times noted that the achievement “validates a promising technological pathway for significantly reducing carbon emission from future coal-fired power units.”

Industry analysts view hydrogen-coal co-firing as a potential “bridge” technology, allowing China to utilize its massive coal power infrastructure while transitioning toward cleaner energy systems. By reducing coal consumption per unit of energy output, the technology could help China manage resource depletion while maintaining energy security.

Challenges Ahead

Despite the breakthrough, several challenges remain before widespread commercial deployment. Large-scale adoption depends on sufficient green hydrogen production capacity, which itself requires massive renewable energy expansion. The broader hydrogen supply chain — including storage, transport, and distribution — remains a critical bottleneck.

Cost competitiveness is another key factor. While green electricity and hydrogen production costs have been reduced by 50% compared to initial levels, the economic viability of hydrogen-coal co-firing at commercial scale has yet to be demonstrated. Retrofitting existing coal plants also requires significant capital investment.

Hydrogen storage and transport remain key technical hurdles. Current methods include high-pressure gas, liquid, and carrier-based storage and transport. In September 2025, the Chinese Academy of Sciences demonstrated a 5-ton-per-day liquid hydrogen production system, marking progress toward large-scale efficient liquid hydrogen plants.

What to Watch For

The breakthrough comes as 2026 marks the first year of China’s 15th Five-Year Plan (2026–2030) and a shift from energy consumption control to carbon emission control. The establishment of a National Low-Carbon Transition Fund, called for in the 2026 Government Work Report, could provide financial support for scaling up technologies like hydrogen-coal co-firing.

According to the Global Energy Interconnection Development and Cooperation Organization, hydrogen gas turbine installed capacity is expected to reach 1.3% of China’s total power capacity by 2050 and 2.5% by 2060. The current breakthrough lays a technical foundation that could accelerate this trajectory, though the timeline for moving from experimental platform to commercial-scale demonstration remains an open question. The technology’s performance under different coal quality grades and operating conditions will also need to be established as deployment progresses.