Brick T9/T10/T11/T12? Thermal insulation vs. sound insulation

Hello,

and right here:

the government's goal is to become (more) independent from fossil fuels - on the one hand for political reasons and on the other hand for environmental considerations.

lies the entire problem of the energy transition: sun and wind do not make us independent from fossil fuels at all. They actually can't, only the average politician and eco-fascist are intellectually incapable of realizing this.

The entire conventional power plant capacity must continue to be fully maintained and runs completely inefficiently in the background. There are supposed to be windless winter nights. There is no sun or wind then, but everyone wants their heat pump running.

Heat pumps in particular are absolutely dependent on fossil energy! When these devices are needed the most, we have the "dirtiest" electricity. *argh*

On a calm winter night you can choose whether to run the heat pumps with electricity from coal or with nuclear power from France, there simply is no other option!!! What on earth is environmentally friendly about that?

Best regards,

Andreas

Don't say that I agree, only how the argumentation is. But I do think that something will still happen there... at least as soon as the 100 billion € puzzle of electricity storage has been solved.

No Bauexperte,

you are mistaken here

What in my opinion is because they simply do not want to recognize the opportunities for themselves, prefer to lament about old privileges and therefore still do not want to invest in storage technologies.
Last Sunday, photovoltaic and wind power plants temporarily covered 87.5 percent of the German electricity demand.

unfortunately wrong. There simply are no storage technologies for electricity that can provide sufficient amounts of energy. Not even for a few hours, let alone some consecutive windless winter days! And not because some stubborn people don’t want it, but because physics simply does not allow it! There is not enough lithium in the world to have large batteries in every house, not enough platinum to convert everywhere via power to gas to power using electrolysis.

Besides, manufacturing batteries is not exactly environmentally friendly. Why do you think most of them come from China????

A country like Norway could help itself with pumped-storage power plants, we cannot, and with the few possibilities we have for hydroelectric power plants, immediately some eco-fascists stand in the front row and demonstrate that again a toad/field hamster/whatever loses its home. Besides, you still need power lines, a very bad word.

It is true that the big electricity giants completely missed the future. Resting on nuclear power plants and coal subsidies was also more comfortable. You didn’t have to think...

They are now rightly going down the drain!

But you cannot say they don’t invest in storage technologies out of laziness, because there are none!!!! There simply is no storage technology that could supply an entire country!

And yes, it is true that on a nice, sunny, and windy day our country can supply itself completely or almost completely from renewables. But that is not the challenge we are talking about!

As long as people are not willing to accept that in winter electricity and thus heating can fail for a week in an emergency, this complete energy transition will not work. And I am NOT willing to accept that!

Best regards,

Andreas

I seem to remember that there are now also alternatives to platinum as a catalyst - at least in research. I also believe that the Li battery will not be the final step - maybe other molecules will also be able to work in a battery someday. I think the field is exciting and one of the mega-trends of the next 10 years - the government is currently creating a huge demand for new technologies - in capitalism not the worst move... the money is just screaming and pushing itself on everyone who finds the answer.

And not because some blockheads don't want it, but because physics simply doesn't allow it!

I'm not a physicist, so I can neither confirm nor deny this statement. What I do know is that only last year a research team succeeded in improving the energy density of lithium-ion batteries; meaning, the storage capacity has increased.

I am therefore convinced that—provided power producers invest money in research—it will eventually be possible to develop short-, medium-, and long-term storage systems. And who knows—it wouldn't be the first time that a so-called byproduct leads to new possibilities.

One small PS: most batteries come from China because they are (still) cheaper and human environmental awareness ends at their own wallet.

Rhineland greetings

Oh, the whole energy transition is just a big web of lies that could make you sick. The end product, electricity, is supposed to be clean, but first, all the world’s resources are exploited for it. Where does lithium come from? Exactly... from lakes in Bolivia, from Tibet, etc. And how is it extracted? I recommend looking that up... It’s not like batteries don’t also contain toxic chemicals like battery acid... We’re just shifting the problem. How will all the batteries, which are considered hazardous waste, be disposed of in the future? And how will we operate all the millions of heat pumps connected to the grid that consume electricity and make power plant control so complex that coal- and gas-fired power plants are needed to balance the load? Especially in winter, when the heat pumps become electric heaters and you could also heat your house with an electric fan from the socket... But yes... in the glossy brochures of the heat pump lobby and in the orbit of the federal government, the energy transition is of course a shift to more conscious use of electricity, fossil fuels, CO2, and resources... *cough* The only semi-green electricity is the one from your own roof! Only the sun shines too rarely in winter and the storage capacity is not large enough... oh, and then we have the battery problem again... No matter how you look at it: turning away from fossil fuels only shifts problems and causes exploitation of the planet elsewhere. Electricity has never been green and it never will be, no matter what technology is used to generate it. Photovoltaic modules have a disastrous climate balance in their production, but they’re oh so green. The same goes for heat pumps. But we keep convincing ourselves that the world is fine and nurture our eco-fascism thanks to dangerous half-knowledge and blinded sight. And in China, India, and on the world’s oceans, they continue to blow dirt unfiltered into the atmosphere – and here the “little man” has to follow the eco-dictate, pay dearly for it, and watch as other countries buy their way out of the environmental problem and shamelessly dump pure poison into the world. Brave new (eco) world!