Dunkelflaute

We can expect huge problems for the power supply in Germany, when the last nuclear power plant shut down in 2022 and the fossil plants in the years thereafter.

At times there is Dunkelflaute in Germany, which means windless when it is dark.
For several days during Dunkelflaute, the key figures for the German electricity supply were approximately the following:
– 26 000 wind turbines produced less than 1 GW
– 1.2 million solar panels (PV) max 2.3 GW at noon.
– The power plants not depending on wind and weather and instead
depending on biofuels and Hydro supplied about 7 GW.
In all, the total “green” production was less than 10 GW at midday.
Demand for Electric energy not considering heat and with little for transport is almost 75 GW.
More at peak times.
This means that approximately 90% of electricity production came from nuclear power, fossil fuels and imports, some of this will be nuclear.
Source: Der Spiegel, which is almost banned by “the greens”.

YET:
Still at the beginning of the ambitious Energiewende, it only has economic consequences.
More about the German difficulties.

If you want to save, just the day-night variations, in batteries, already this will be furious expensive.

  • Here it is natural to ask wether imported biofuels in fact is green.
    In any case it is not green when we see how Germany destroys villages in order to get space for strip mine for brown coal to feed new power plants.
  • If you want to store biofuels or biogas for backup, it will be a very expensive drip in the ocean.
    Until now I have not seen anything in this direction.
  • New opportunities for Hydro is almost nonexistent.
  • In the European context, there is virtually only one opportunity for new and affordably pumped storage.
    This is a Mega-sized plant in Scotland which assumes that we can pump brine into a fresh water lake.

Tysk solkraft variation For solar energy alone we have the following:
– The best day: June 21 the solar
cells produced 23 GW
at noon.
– Similarly, 18 January the
production was less than
1 GW also at noon.
Of course, not so much the rest of the day and nothing at night.

If solar energy, as planned, should provide an essential part of the German needs – even at wintertime.
Then, of course, there will be disastrous overproduction in summer.
This energy can’t “just” be exported to Norway, which have abundant hydropower in the summer and would like to export.
Perhaps Poland may buy something.

  • It is of course understandable that German industry would like to have an extra gas pipeline established from Russia through the Baltic Sea.
    Then, in the future, they have backup for wind and solar energy.
    At least until the final collapse of the ambitious Energiewende.
  • Perhaps it can also be understood that there are dreams of a connection to Norway.
    Such a connection will be long, expensive and have a considerable energy loss.
  • To me it is utterly incomprehensible that the “German public opinion” has not understood the seriousness of the situation.
  • The only explanation I can find is, that all this hubbub is the result of a skillful and relentless propaganda, where everything dealing with nuclear and radioactivity is done to be a major risk.

Greetings and good reflection
Thorkil Søe

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