Key Takeaways:
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Hydrogen is a clean energy source gaining global momentum, driven by the need to cut carbon emissions, improve energy security, and move away from fossil fuels.
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Green hydrogen is the cleanest but most expensive option, while blue and gray hydrogen offer cheaper but less sustainable alternatives.
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We must overcome major challenges in hydrogen production, storage, and transportation, including the high cost of electrolysis, limited infrastructure, and complex logistics.
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Governments, industries, and innovators must collaborate to lower costs, build infrastructure, and promote hydrogen’s role in decarbonizing heavy industries and clean transportation.
The hydrogen economy is growing fast. Around the world, more countries, companies, and communities are investing in hydrogen energy. Why? Because hydrogen is a clean fuel that could help lower carbon emissions, reduce our need for fossil fuels, and create a new path toward sustainability.
Below, we’ll explain what’s driving the expansion of the hydrogen economy, how different types of hydrogen are made, and what must happen to make hydrogen a big part of our global energy system.
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The Global Expansion of the Hydrogen Economy
Several forces are pushing the world toward hydrogen adoption. One big reason is the need to cut greenhouse gas and carbon emissions. As climate change worsens, many countries are trying to move away from coal, oil, and natural gas. They are looking for low-carbon or zero-emission options, and hydrogen technologies are a key part of the solution.
Another driver is energy security. Some countries don’t want to rely too much on foreign energy sources. By producing their own clean hydrogen, they can reduce this risk and build a more stable energy system.
Investments in hydrogen infrastructure, including pipelines, refueling stations, and hydrogen hubs, are growing. Governments and companies are also launching hydrogen projects to test new ways to create, store, and use hydrogen.
How Does Green Hydrogen Compare to Blue and Gray Hydrogen?
Hydrogen comes in different “colors,” based on how it is made:
- Green hydrogen: Made using renewable electricity from wind or solar. This process creates little to no harmful emissions.
- Blue hydrogen: Made from natural gas, but the carbon emissions are captured and stored using carbon capture storage technology.
- Gray hydrogen: Made from natural gas or methane without emissions capture and storage, making it less clean.
- Pink hydrogen: Made using nuclear energy.
- Black or brown hydrogen: Made using lignite coal, making it the dirtiest of the hydrogen types.
- Turquoise hydrogen: One of the newest processes that creates hydrogen through a process called methane pyrolysis.
- Yellow hydrogen: Another fairly new process that creates hydrogen using only solar power.
- White hydrogen: Naturally occurring hydrogen in the earth. As of 2025, there is no feasible way to extract this hydrogen.
Right now, green hydrogen production is the cleanest and most expensive. It requires a lot of electricity and the equipment costs a lot. Blue hydrogen is cheaper, but not fully clean. Gray, black, and brown hydrogen are the cheapest but worst for the environment.
To expand the hydrogen economy, we need to lower the cost of green hydrogen so it’s more cost-competitive with other fuels. As technology improves and more large-scale projects are built, these costs are expected to drop.
What Are the Biggest Challenges in Hydrogen Production, Storage, and Transportation?
Hydrogen is light and easy to burn, but that also makes it hard to handle. There are three big challenges:
- Production: Making hydrogen cleanly takes a lot of power. Electrolysis — the process of splitting water (H2O) into hydrogen and oxygen — is still expensive. Plus, many electrolysers are not built for large-scale use yet.
- Storage: Hydrogen is difficult to store. It needs to be kept in high-pressure tanks or turned into a liquid, which requires even more energy.
- Transportation: Moving hydrogen through pipelines or trucks is tricky. Hydrogen can weaken metal and requires special equipment.
New hydrogen technologies are being developed to solve these problems. Better energy storage systems and safer hydrogen infrastructure are key to scaling up this clean fuel.
How Can Policymakers Accelerate the Adoption of Hydrogen as a Clean Energy Source?
Policymakers play a significant role in the development of hydrogen. They can make laws, provide money, and create rules that help hydrogen grow.
- Governments can support clean hydrogen by:
- Funding research and development
- Giving tax breaks for hydrogen projects
- Creating a national hydrogen strategy or roadmap
- Setting targets for clean hydrogen production
- Building refueling stations and hydrogen infrastructure
They can also bring together stakeholders like companies, scientists, and local leaders to work on collaborative solutions. In some places, leaders link hydrogen energy to other goals, like creating jobs or boosting local industries.
What Role Does Hydrogen Play in Decarbonizing Hard-to-Abate Industries Like Steel, Cement, and Chemicals?
Some industries are hard to clean up because they use a lot of heat or chemical reactions that produce carbon emissions. These include making:
- Steel
- Cement
- Chemicals
- Ammonia
- Fertilizers
In these cases, hydrogen-based solutions can replace fossil fuels. For example, using hydrogen instead of coal to make steel creates almost zero emissions. This is part of the bigger picture of decarbonization: cutting emissions from all parts of the economy, not just cars or power plants.
By helping to clean up these tough sectors, hydrogen is becoming a vital part of the energy transition.
How Does Hydrogen Compare to Batteries in the Transition to Clean Transportation?
When people think of clean cars, they often think of electric vehicles with batteries. But hydrogen can power cars too, using fuel cells. Both are clean, but they have different strengths:
Batteries are better for short trips and small cars.
Hydrogen fuel cell vehicles are suitable for long trips, big trucks, buses, and trains.
Fuel cell electric vehicles (FCEVs) refuel faster than it takes to charge an EV’s batteries. FCEVs also require less weight when increasing range compared to EVs. However, there are fewer hydrogen refueling stations than EV chargers, and the fuel is still more expensive than electricity.
As the hydrogen infrastructure grows, more people may choose hydrogen-powered vehicles, especially in areas where building charging stations is harder.
Global Hydrogen Economy: Economic and Geopolitical Implications
A global hydrogen economy could change how countries trade energy. Today, many countries depend on oil and natural gas from other places. In the future, they could make or import clean hydrogen instead.
This shift could:
- Reduce dependence on fossil-fuel-rich countries
- Create new jobs in renewable energy and hydrogen
- Change which countries are leaders in the energy market
- Increase energy security
Some countries in the Middle East are investing in hydrogen production to stay relevant in the energy world. Others, like those in Europe and North America, are working on creating their own hydrogen supply chains.
Experts believe hydrogen could meet up to 12% of the world’s energy needs by 2050. That’s a significant change from today’s 2.5%.
Which Regions Are Leading in Hydrogen Production and Infrastructure Development?
As with many technological developments, various regions of the world are racing to be the leaders. Today, several countries are well ahead of the rest of the world. The leaders are:
- China: Always an innovator in tech, China unsurprisingly has a massive lead over the rest of the world. Its operational hydrogen capacity is 117 kilotonnes (kT) per year, and another 1,061 kT per year is in the final stages of being operational.
- Saudi Arabia: This Middle East country has no operational capacity, but 339 kT per year of capacity in the final operational stages.
- Sweden: This European country has 3.8 kT per year of operational capacity and another 231 kT in the final stages.
- USA: The U.S. has 5.89 kT of annual operational capacity and another 154 kT nearly operational.
- United Kingdom: The UK has 1.2 kT of operational capacity and another 157 kT nearly ready for operation.
Each region has its own strengths, but all are working toward the same goal: clean, affordable hydrogen for all.
How Can Hydrogen Infrastructure Be Scaled Efficiently?
To grow the hydrogen economy, we need to build more hydrogen infrastructure. This includes:
- Pipelines to move hydrogen
- Refueling stations for cars and trucks
- Storage tanks for extra fuel
- Connections to renewable electricity sources
- Export terminals for shipping hydrogen
One idea is to reuse existing natural gas pipelines by upgrading them. This can save money and speed up the process. Cities can also build hydrogen hubs that bring together supply, storage, and users in one place.
Governments can help by making building permits easier and working with companies on shared infrastructure plans.
What Innovations Are Needed to Make Hydrogen More Cost-Competitive With Fossil Fuels?
To beat fossil fuels, hydrogen needs to be cheaper. Right now, that means:
- Making electrolysis cheaper and more efficient
- Building bigger and better electrolysers
- Using renewable energy at lower costs
- Improving hydrogen storage and transport
- Finding new byproducts from hydrogen use, like sustainable aviation fuel
Other ideas include using turbines that run on hydrogen or mixing hydrogen with natural gas in power plants. With more research and investment, these ideas could become a reality soon.
Research shows that the cost of green hydrogen could fall by 50% or more by 2030 if enough money and support are invested in the right initiatives.
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A Cleaner Future With Hydrogen
The expansion of the hydrogen economy is more than just a trend. It’s a real movement that combines sustainability, innovation, and the need for cleaner energy.
As we move away from fossil fuels, hydrogen offers a flexible, clean, and powerful tool to help power the world. Whether it’s through fuel cells, clean hydrogen production, or decarbonizing big industries, hydrogen has a key role to play.
But to succeed, we need everyone involved: governments, companies, communities, and individuals. With the right policies, smart investments, and a shared vision, hydrogen can help us build a cleaner, more resilient energy system for future generations.
Until hydrogen power becomes a reality, you can reduce your carbon footprint by choosing an energy provider with a green option. Explore Just Energy’s residential electricity plans and our JustGreen add-ons.
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