Wind is only useful up to a point, once it gets above 20% of generation capacity ensuing grid stability becomes expensive either through huge price swings or grid level energy storage.
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https://www.abc.net.au/news/2024-08-06/what-australia-can-le...
> For the first time ever, California's batteries took over gas as the primary source for supplying evening power demand in April, providing "akin to the output from seven large nuclear reactors" one evening, according to the New York Times.
You'll notice in your article they are almost always talking about power instead of energy because energy is the problem.
We still need about 100 - 1000x improvements to rely on batteries without reliable power plants, depending on how much the generation capacity is overbuilt.
https://reneweconomy.com.au/a-near-100-per-cent-renewables-g...
In reality we will still have a lot of fossil generation which will make it 'easier'.
There are numerous camps with strong impassioned and conflicting arguments as to cause.
https://en.wikipedia.org/wiki/2025_Iberian_Peninsula_blackou...
The only sense in which there are conflicting arguments, is that the leftist Spanish government read the above report and concluded that it was the fault of the gas plants for not being available when they were needed. Because they were switched off. Because of their own policies. This is not an argument that deserves genuine consideration.