this post was submitted on 08 Sep 2023
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Totally wrong - you need to source this claim if you’re going to make it. All of the studies I have found claim the opposite - wind power is the best for stabilising a grid both in energy demand and frequency response. With renewables and pumped storage there is no need for batteries or for fossil/nuclear power.
The source is at the bottom of my comment, you can refer to it. It's only in french unfortunately but nothing an online translator can't help with.
On the other hand you are welcome to provide your sources too.
I can’t read French well enough to really dig in to your source and the website doesn’t seem to work for Google translate and it’s too much text to copy/paste, sorry, so I can’t really confirm what you say except the fact that I looked on the site and I saw that they didn’t include pumped storage, which seems extremely foolish. I’m guessing that they were bribed by the nuclear power companies in some way.
If you go into the detailed explanation (and can read French) they do have some hydraulic pumping included in their "batteries" section.
In their 100% renewables scénario on a peak consumption (105gw) hour and peak energy production (sun at zenith) they would store the excess production like such:
Also even in their most nuclear scenario (50% nuclear, 50% renewables) they still include 7.2gw of water pumping.
I'm curious of why you put so much value in water pumping? As a Quebecois I have a small notion of how disruptive (flooding of vast areas of land, massive amounts of concrete, dead rivers downstream of the dam ) water reservoirs for hydroelectricity can be and I have a hard time imagining a viable way of relying extensively on that technique.