Analysis: ‘Spain was running its grid with very little of what’s called ‘dispatchable spinning generation’ – Therefore, power plants were not able to ‘quickly adjust their output to keep the grid stable’

Before the outage hit, Spain was running its grid with very little of what's called "dispatchable spinning generation" (also known as inertia). ... "Dispatchable spinning generation" means power plants, like gas or nuclear, that can quickly adjust their output to keep the grid stable. The name "spinning" refers to the turbines that traditional generation plants such as coal, gas, nuclear that use spinning turbines help with this. Traditional plants provide this with their spinning turbines, but renewables don't, making the grid more fragile if you don't have a way to very rapidly load-balance in the case of an outage. This likely contributed to the outage that hit Spain, Portugal, and parts of France, as the grid couldn't handle sudden disruptions well.

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