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French Power Price Plunges Below Zero as Solar Swamps the Grid
(www.bloomberg.com)
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this post was submitted on 01 Apr 2025
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Economy
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There is no problem with instability. Solar can be instantaneously shut off with no ill effects. This is purely an economic "problem."
In principle it can be. The question is whether it's configured to allow for that.
The economic problem is a symptom of a grid stability problem.
There are no electrical connections to the grid without a shut off. Every wire is required to have a rated shut off at the most basic level.
Ok, so how do the grid controllers access that? How do you decide fairly which sites to turn off?
It depends on the supplier contract that has to be filed with RTE before you're allowed to connect and transmit power.
Every system operator where renewable saturation is even remotely possible requires it for all large plants. It's a technically trivial problem that has no impact on grid stability.