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Enthusiasts Electromobility: Why the hydrogen car has no future

11:00  23 april  2021
11:00  23 april  2021 Source:   t3n.de

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Hydrogen is an integral part of Future Mobility - but not as an alternative drive for cars. A comment.

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Over the past two years, the discussion about the future of mobility has won rapidly. Wide parts of humanity have meanwhile understood that internal combustion engines have been exhausted in their current form. See also the big car makers, many of which have already decided the medium-term exit from this technology. Instead, they focus fully on the topic Electromobility . Even the Environment Federal Office came in 2019 to the conclusion that electric cars "are the most cost-effective option for the conversion of transport to a greenhouse gas neutral sector.

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and yet in discussions around electric cars always appears at least one person who explains that they will never buy "such an environmentally harmful electric rubring". Anyway, "electric cars will not enforce, because the future belongs to the hydrogen car". At this point there are two possibilities: Either you roll with your eyes and ignores the comment, or you politely ask how the or that comes to its assessment. Most of the time you get a dubious link from a telegram group, or the one gives you, just the inscription from the FDP election poster has been replenished.

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Roughly estimated 99 percent of people who see the future in the Hydrogen Car , have never driven a hydrogen car. The irony of it: roughly estimated 99 percent of people who call a hydrogen car their own, see no future in the hydrogen car.

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and there are good reasons for that.

The hydrogen car and its problems

to understand why the use of hydrogen or fuel cells in a car makes little to no sense, one does not have to study physics, nor scientific treatises have read. It is enough to keep in mind that a modern electric car brings about 70 to 80 percent of a kilowatt hour of electricity as a drive power on the street. A hydrogen car needs twice to three times as much power for the same route.

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This brings us to the topic of efficiency. Because hydrogen does not occur naturally, but must first be generated by electrolysis. Water is disassembled by electrically electricity in hydrogen and oxygen. Subsequently, however, the hydrogen can not be pumped through any pipeline, but must be transported in special truck tanks to the petrol stations. As if that were not enough, the necessary tank systems are extremely expensive - and usually can not refuel more than four to six cars per hour. This in turn is because when refueling a hydrogen car, large pressure differences can occur and the tap can protect. Therefore, between two tank operations always has to pass a certain time.

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The poor efficiency and the high cost of infrastructure are then even higher acquisition and maintenance costs. For a hydrogen car is similarly built like an electric car, but also has a highly complex fuel cell and a special tank. In the medium term, only the workshops of the car dealerships benefit.

It is therefore little surprising that Vw has already turned back to the hydrogen and also manufacturers such as Toyota are now set to electric cars .

Hydrogen as an energy carrier in other areas

You can not make the mistake of using hydrogen as a technology completely. On the contrary: Hydrogen will play an elementary role in many areas in many areas - just not at the car.

Two locations regularly listed in science are steel production and ammonia production. Because there is hydrogen generated to overproduction times with electricity from renewable energies that replace the coal. This results in a immense CO2 savings potential up to climate neutrality.

and then there would be a heavy duty traffic: trains, trucks and ships need a lot of energy due to their high weight. Here larger reaches with battery-based electromobility can only be difficult to reflect. For this purpose, hydrogen or fuel cells can fully play their potential.

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