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The fact is that, in addition to combating climate change, we now also have problems with security of supply. The question then arises as to whether one should encourage the most diverse technical solution approaches, or perhaps ask them to focus on the essentials.

No, we want to find an answer to the question in this chapter and not settle for a simple 'both and'. Let's take a look at politics, too much is being subsidized at the moment. Of course, one should not knit laws with a hot needle but on the other hand, time is sometimes short and amendments are absolutely necessary.

But tying the premiums for the purchase of electric cars to a period of use of only six months should not have happened, even in a hurry. That is probably the only advantage of the situation at the moment, if you sell your car abroad at the new price, you will hopefully not get your new one immediately because of the long delivery times.

The bonus for plug-ins and the benefits for company car taxation in Germany were probably written into it by lobbyists of the upper-class manufacturers. Away with it. On the other hand, buyers of solar collectors only get around 10 cents and one advertises in droves that they should add energy storages, please. The premium for solar panels, not just photovoltaics, should be increased.

How do we get as much effect as possible without much ado? Certainly not by 'self-sufficient households'. Also, the unconditional recommendation for heat pumps is perhaps more of a business for heating installers, and probably only makes sense for new builds. But you have to understand the Minister of Energy , who is currently in favor of anything away from natural gas.

What about the renewable fuels? As long as Porsche and Siemens pay for it, OK. The emphasis on these projects, however, boils down to a revival of the internal combustion engine. But perhaps it will become a hydrogen- derived gas project. After all, people who are currently converting to heat pumps usually only lock the old gas line with a plug.

Yes, hydrogen has a future because it can be stored best. But in which areas it will be used, nobody really knows. We bet, not in the passenger car sector and even not in the truck sector? The operation of heavy trucks is also possible if you think about the statutory rest periods and are prepared for a reduction in payload from 23 to around 20 tons.

Therefore, the expansion of truck stops should definitely be promoted, because the rest stops are already hopelessly overwhelmed. Will the pantographs on the cabins help? Because even with the German Federal Railways, only one train occupies the system on a longer section and not an incredible number of trucks in a row.

Does the railway need hydrogen on non-electric routes? At least it wouldn't have to be pumped up to 900 bar and there wouldn't be a queue at the only gas station. But wouldn't it be easier to 'fill up' the electrics at the end points? Especially since there would be no personnel costs, because the train would have to be one of the first to be able to drive autonomously with a control station.

Curtailment, a large area comes to mind for the automobile, namely the software. Certainly, the cars would not be lighter until if sensors and actuators were also saved. Such as electric seat adjustment, which often requires the seat to be positioned higher. A memory function should also be possible with manual adjustment.

Yes, a head-up display is great, but dispensable. Instead, a traffic-safe user guidance in addition to voice control. Are two or even more displays necessary? In the meantime, there are already a number of possible duplications of the center display with the one behind the steering wheel. Why not above or even just one display? Sometimes sports cars are content with it.

There should have been a standardized cloud regulation for all vehicles long ago, where experiences can be stored in bulk and retrieved in milliseconds. Where is the intelligent re-storage of vehicles in the grid, which might even make the storage of electricity in hydrogen superfluous?

The completely irrelevant all-wheel drive is probably unavoidable. But if a majority is currently in favor of a speed limit on motorways, from which combustion engines suffer more than electric cars, there would be a technical limitation on acceleration in order to reduce the higher fine dust pollution that has now been proven with CO2.

Flatter electric station wagons would not be bad.

Also a time that is already over . . .

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