H2
Hydrogen
the basic building of all life and the energy source of tomorrow
Wasserstoff H2 ist ein chemisches Element, welches in der Natur in Form von Molekülverbindungen vorkommt. So ist die bekannteste Kombination Wasser – H20 – welches Grundbaustein des Lebens auf der Erde ist. Wasserstoff ist das erste Element in unserem Periodensystem und durch seinen Atomaufbau sehr leicht und klein. Dadurch entstehen viele Vorteile, die wir nutzen können um Wasserstoff als Energieträger von morgen einzusetzen.
Wasserstoff H2 hat durch seine chemischen Eigenschaften extreme Vorteile zu anderen Energieträgern.
1 The greatest advantage is in the energy density. At 33.33 kWh/kg, hydrogen is the energy carrier that can release by far the most energy relative to its own weight.
In der Darstellung sehen Sie die Energiedichte von verschiedenen Energieträgern im Vergleich.
| Fuel | Calorific value in kWh/kg |
| Hydrogen | 33,33 |
| Natural gas | ca. 10,56 |
| Gasoline | ca. 12,12 |
| Batteries (state of the art) | Energy storage density in kWh/kg |
| NCA Lithium Nickel Cobalt Aluminum Oxides | 0,2 – 0,26 |
| LCO Lithium Cobalt Oxides | 0,15 – 0,2 |
Sources: RP-Energie-Lexikon – Heizwert, Energiedichte, Autor Dr.Paschotta
Sachstand-Energiespeicher der Elektromobilität Entwicklung der Energiedichten –
Aktenzeichen: WD 8 – 3000 – 090/20
- Another main advantage is that hydrogen, unlike fossil fuels, can be produced and used in a climate-neutral way. It is also inexhaustible, since it is only converted and not consumed.
3. Furthermore, hydrogen is safe, easy to handle and transportable. Storage is also relatively simple.
All these advantages combined make hydrogen the Energy source of tomorrow - or as Jules Vernes recognized it already in 1874 : "The energy of tomorrow is water that has been decomposed by electric current".
The different color designations here each stand for a different way of production.
Green Hydrogen – the energy source that makes the energy turnaround possible
Hydrogen produced by electrolysis with electricity from sustainable energy sources is referred to as green. These include, for example, wind turbines or photovoltaic systems. This hydrogen is therefore produced in a very environmentally friendly way and releases no further emissions during production.
Grey Hydrogen – Hydrogen from fossil fuels
Gray hydrogen is defined as that which is extracted from fossil fuels. The best-known process is the so-called "steam reforming". Here, for example, natural gas is split into hydrogen and CO2. For every ton of hydrogen produced, about 10 tons of CO2 are released into the earth's atmosphere. This type of hydrogen production is therefore by far the most environmentally harmful and should be avoided. It is used, among other things, in industrial processes such as fertilizer production.
Blue Hydrogen – Still fossil but CO2 neutral
Blue hydrogen is basically gray hydrogen, which has the advantage that the escaping carbon dioxide is captured and stored during production. Thus, this process is considered CO2 neutral, yet fossil fuels are needed and further energy is required to make the storage possible in the first place. Therefore, this mehtode is considered to be more ecologically compatible than that with gray hydrogen, but it also has major disadvantages.
Turquoise Hydrogen – Methane splitting
For turquoise hydrogen, a process called methane pyrolysis is used. In this process, methane is thermally cracked and then separates into hydrogen and solid carbon dioxide. If electricity from renewable energy sources is used and the resulting carbon dioxide is stored, this method is also considered CO2 neutral.
Conclusion
In the future, green hydrogen will be the energy carrier of choice. The advantages are obvious - it can be produced in a climate-friendly way and is not dependent on limited fossil fuels. In addition, the production can use overcurrent capacities and thus in principle use energy that would otherwise not be usable - another advantage for green hydrogen!In the future, green hydrogen will be the energy carrier of choice. The advantages are obvious - it can be produced in a climate-friendly way and does not rely on limited fossil fuels. In addition, the production can use overcurrent capacities and thus in principle use energy that would otherwise not be usable - another advantage for green hydrogen!
Fassen wir kurz zusammen – Wasserstoff H2 hat einen wesentlich höheren Heizwert als alle anderen Brennstoffe. Wasserstoff kann klimafreundlich hergestellt werden und durch die Flexibilität bei der Herstellung können Überstromkapazitäten genutzt werden, welche sonst verfallen würden.
In addition, it is inexhaustible, there are no problems with environmental pollution in case of leakage or the like, and it is easily transportable.
All this makes it the energy source of our choice!
Wasserstoff H2 wird in vielen verschiedenen Branchen genutzt.
In industrial processes, for example, it is often used as a component in the production of various substances such as ammonia.
As an energy carrier, it is used in the sectors of heat generation, mobility, power generation & storage, and as a medium for transporting energy.
The future belongs to green hydrogen. But where will it come from in the future?
Schon heute gibt es Projekte, welche Wasserstoff als Energieträger einsetzen um den im Norden erzeugten Strom in südlichere Regionen von Deutschland zu bringen.
For the future, however, bigger things are being thought of. There are numerous projects, such as the "Joint Declaration of Intent for the Establishment of Hydrogen Cooperation between Germany and Saudi Arabia," which all aim to produce hydrogen in sunny areas with a lot of open space and then send it through an international logistics network to the regions that want to use the hydrogen.
A worldwide infrastructure is to be created where hydrogen is produced where it is most efficient and then transported to the countries that need it.
Hydrogen is currently still a relatively expensive fuel. The price averages around 9.50 euros/kg.
But this is set to change significantly in the future.
According to a study by the analysis company Statista, the production price for green hydrogen is expected to fall from the current level of around 16.5 ct/kWh to 9-12 ct/kWh by 2030. By 2050, Statista expects the price of green hydrogen production to drop to 6-9 ct/kWh, which roughly corresponds to a price of 2-3 euros per kilogram of hydrogen.
Source: Wasserstoff: Produktionskosten nach Typ bis 2050 | Statista
Hydrogen ist emissionsfrei und kann uns dabei helfen unsere net zero Ziele zu erreichen. Da Hydrogen keinerlei Emissionen Verursacht, wenn er aus nachhaltigen Mitteln gewonnen wird, also wenn er grün ist,. Dann kann er uns auf Grund dessen, das er emissionsfrei ist den net zero zielen ein wenig näher bringen.
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