Green hydrogen – clean energy for emission-free energy solutions
Green hydrogen is considered one of the most promising energy sources of the future and plays a key role in the transformation to a climate-neutral energy economy. The main advantages of green hydrogen lie in its flexibility, as it can be used in numerous sectors – as a clean fuel in transport, for heat and power generation in buildings or as a raw material in industry. It can efficiently store renewable energy and thus compensate for fluctuations in electricity production – a decisive factor for stability and security of supply in a decarbonized energy system.
Green hydrogen is therefore of crucial importance for the energy transition, as it not only reduces CO₂ emissions, but also promotes independence from fossil fuels and opens up new opportunities for sustainable economic growth.
Green hydrogen in the energy industry – challenges & opportunities
Green hydrogen is an indispensable building block for a sustainable energy future due to its flexible applications. It serves as an environmentally friendly raw material in industry and as an emission-free fuel in transport. Additionally, green hydrogen can help stabilize the energy grid by acting as a flexible energy storage medium. In industry, green hydrogen can be used in various chemical processes and to produce steel and other materials without harming the environment. In transportation, fuel cell vehicles powered by green hydrogen offer a clean alternative to conventional combustion engines. Green hydrogen also shows great potential in the heat supply sector for heating systems and industrial processes. A key advantage of green hydrogen is its ability to store energy. This is particularly valuable when electricity production from renewable sources like wind and solar fluctuates significantly. By storing surplus energy as hydrogen, a continuous energy supply can be guaranteed even when renewable energy production is seasonally unavailable.
The following criteria apply for hydrogen to be recognized as green:
- Proof of renewability – hydrogen producers must prove that the electricity used comes from renewable sources.
- Electricity source – the electricity can either come directly from the producer's own renewable energy source or be drawn from the general electricity grid.
- Additionality – increasing demand for hydrogen must go hand in hand with the expansion of new renewable energy sources.
- Timely & location-specific production – green hydrogen may only be produced when and where sufficient renewable energy is available.
Production of green hydrogen
The production of green hydrogen starts with electrolysis, an environmentally friendly process where water is split into hydrogen and oxygen using electrical energy. This electricity exclusively comes from renewable sources like wind, solar, or hydroelectric power. Unlike conventional hydrogen production, which often relies on fossil fuels and releases CO₂ emissions, electrolysis produces no harmful carbon dioxide. A typical electrolysis system uses electricity to break down water into its component parts in an electrochemical process. The resulting hydrogen gas can be used as a clean energy source in various sectors, including power generation, transportation, and industry.
A key technology related to electrolysis is the power-to-gas process. Here, surplus electricity from renewable energy sources is used to produce hydrogen that can be injected into the existing gas grid. This method makes electricity usable in the form of storable gas and can therefore help to stabilize the energy system by providing a flexible storage solution for excess renewable energy.
Efficient storage solutions for green hydrogen – hydrogen storage systems by Hexagon Purus
After production, the storage of green hydrogen is also an important challenge – hydrogen is a very light gas that requires specific conditions for efficient storage. A common method is compression, where hydrogen is stored under high pressure (typically 350 up to 700 bar) in special pressurized containers, such as our hydrogen type 4 cylinders.
Hexagon Purus offer innovative and customizable hydrogen storage systems specifically designed for the entire hydrogen value chain. The key features and benefits of our ground storage solutions are their ease of use, cost efficiency and the fact that they do not require strong foundations. They are also non-corrosive and fatigue resistant, which contributes to a long service life. The systems are expandable for future upgrades and modular in design, allowing for a complete storage solution. Maintenance and high cycle performance are also simple and effective.
All benefits of green hydrogen at a glance
Green hydrogen offers a number of benefits that are both environmentally and economically relevant – it is a flexible energy source that has the potential to drive the energy transition and shape a sustainable future.
The key benefits of green hydrogen include:
- Climate neutrality – no direct CO2 emissions are generated during the production of green hydrogen
- Reduction of greenhouse gas emissions – green hydrogen can replace fossil fuels in many areas & significantly reduce overall emissions
- Air pollution control – no pollutants that affect air quality when using green hydrogen
- Energy independence & regional value creation – the use of national renewable energies can minimize dependence on fossil energy imports & contribute to strengthening the regional economy
- Innovation driver – the use of green hydrogen promotes innovation in many areas of the economy
- Flexible applications – for example in industry, transport, energy generation and heat supply
- Combinability with other technologies – can be combined well with other renewable energies & energy storage systems
Find out about the innovative uses and benefits of hydrogen and become part of the energy transition – contact us to learn more about customized hydrogen solutions for your needs and experience the future of energy to transform your industry sustainably.
Contact →Hexagon Purus ASA
Haakon VII's gate 2
0161 Oslo
Norway
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