Earlier quoted context omitted.
> this must be something with fast cold start. So black/brown coal power plan will not help you, similarly nuclear. Nuclear plants provide base load and they are extremely fast at ramping up/lowering production. All modern nuclear plants are capable of changing power output at 3-5% of nameplate capacity per minute: https://www.oecd-nea.org/upload/docs/application/pdf/2021-12... You don't shut down power plants. None…
> Nuclear plants provide base load and they are extremely fast at ramping up/lowering production The obvious counterexample is Chernobyl, where a big contributor was the fact that they were unable to scale it down & back up as desired. Yes, nuclear reactors can scale down rapidly - but you have to wait several hours until it can scale back up! Besides, the linked paper only covers load-following in a traditional grid…
You mean the obsolete design that is not used even in old reactors, not to say of modern designs?
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The minimum requirements for the manoeuvrability capabilities of modern reactors are defined by the utilities requirements that are based on the requirements of the grid operators. For example, according to the current version of the European Utilities Requirements (EUR) the NPP must at least be capable of daily load cycling operation between 50% and 100 % of its rated power Pr, with a rate of change of electric output of 3-5% of Pr per minute.
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> The situation is going to look drastically different for a renewables-first grid, where additional sources are needed for at most a few hours a day, for a few months per year.
Ah, to live in these mythical times...