Hydrogen energy has become one of the most promising components of the global energy transition, driven by the need to reduce greenhouse gas emissions and ensure sustainable industrial growth. In the United States, hydrogen is increasingly viewed not only as a clean energy carrier but also as a strategic resource for enhancing energy security and supporting decarbonization across multiple sectors [1]. Recent developments in production technologies, storage systems, and infrastructure have accelerated the integration of hydrogen into industrial processes, transportation, and power generation. At the same time, government initiatives and private investments are fostering large-scale pilot projects and expanding the scope of hydrogen applications.

This article aims to analyze the practical use of hydrogen energy in the United States, focusing on its role in industry and its contribution to energy saving. Particular attention is given to technological advancements, economic implications, and the challenges associated with scaling hydrogen solutions.

Industrial use of hydrogen in the USA

One of the key areas where hydrogen is gaining practical importance in the United States is the industrial sector. It is widely applied in oil refining, chemical production, metallurgy, and, more recently, in the development of green steel and ammonia [2]. The U.S. Department of Energy reports that hydrogen consumption is steadily growing, especially in sectors with high energy intensity and demand for decarbonization. Figure 1 illustrates the distribution of hydrogen consumption by industry in the United States.

Figure 1. Distribution of hydrogen consumption by industry in the USA (2024)

The analysis shows that hydrogen use in the USA remains concentrated in traditional sectors such as refining and fertilizers, while its expansion into metallurgy and energy is only beginning. This indicates both the dependence of current hydrogen demand on established industries and the potential for diversification as new technologies mature.

Hydrogen and energy saving potential in the USA

Hydrogen is considered one of the most promising tools for improving energy efficiency and reducing greenhouse gas emissions in the United States. Its use as an alternative fuel in transport, power generation, and energy-intensive industries allows for partial replacement of fossil fuels and contributes to decarbonization strategies [3, 4].

According to projections by the International Energy Agency (IEA) and the U.S. Department of Energy (DOE), large-scale adoption of hydrogen could reduce primary energy demand and significantly cut emissions by 2030–2040. Figure 2 illustrates estimated scenarios of energy savings resulting from hydrogen integration in different sectors of the U.S. economy.

Figure 2. Estimated energy savings from hydrogen adoption in the USA by 2030 and 2040

The results indicate that hydrogen can make a substantial contribution to energy efficiency, particularly in transportation and heavy industry [5]. The growing gap between the 2030 and 2040 scenarios highlights the importance of long-term investment and supportive policies for scaling hydrogen infrastructure in the United States [6].

Barriers and challenges of hydrogen deployment in the USA

While hydrogen energy has strong potential for decarbonization and energy saving, large-scale adoption in the United States faces technological, economic, and infrastructural challenges. Production of low-carbon hydrogen via electrolysis remains costly due to high electricity prices and limited efficiency of electrolyzers, while storage and transportation require specialized pipelines and cryogenic systems. Economically, hydrogen projects demand higher upfront investments compared to conventional energy. The price gap between fossil-based grey hydrogen and renewable-based green hydrogen hinders industrial adoption without subsidies. Although the Inflation Reduction Act and Bipartisan Infrastructure Law provide incentives, long-term market stability is still uncertain [7]. Infrastructure is another barrier, as the U.S. lacks a nationwide network of refueling stations and pipelines, and regional differences in renewable energy resources limit large-scale production. Regulatory issues, such as safety standards and certification of hydrogen origin, also slow down adoption [8].

One of the most critical obstacles remains cost. Grey hydrogen is the cheapest at about $1.5/kg, blue hydrogen costs around $2.5/kg, while green hydrogen reaches $4.0/kg, making it the most expensive option (figure 3).

Figure 3. Estimated production costs of different types of hydrogen in the USA

The comparison shows that while grey hydrogen remains economically dominant, the transition to blue and green hydrogen will require substantial policy support and technological innovation [9]. Without reducing production costs, industries may be reluctant to scale the adoption of clean hydrogen solutions.

Conclusion

Hydrogen energy in the United States demonstrates considerable potential for industrial application and energy saving. Current consumption is concentrated in refining and chemical production, while new opportunities emerge in metallurgy, transport, and power generation. Despite clear advantages for decarbonization, large-scale deployment faces technological, economic, and infrastructural barriers. Government initiatives and private investment will play a decisive role in reducing costs, expanding infrastructure, and ensuring the integration of hydrogen into the national energy system. Overall, hydrogen is positioned as a strategic element of the U.S. energy transition, with significant long-term benefits for industry and sustainability.