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From: Jeroen Belleman <jeroen@nospam.please>
Newsgroups: sci.electronics.design
Subject: Re: Grand Apagon - Electricity (not) in Spain
Date: Thu, 1 May 2025 13:06:03 +0200
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On 5/1/25 12:24, Liz Tuddenham wrote:
> Chris Jones <lugnut808@spam.yahoo.com> wrote:
> 
> 
>> There is nothing magic about the current from a rotating generator that
>> cannot be exactly replicated by an inverter ...
> 
> Inertia.  Not magic but physics.   A store of energy that can be drawn
> on instantly for several seconds.  Only an inverter with a massive
> energy storage system could match that; domestic systems can't.
> 
> 

I'm convinced it's becoming necessary for small domestic systems
to servo the injected power to the grid frequency, just as is done
for large power plants. There is no need for massive storage; Each
contributes what he is able to. I *do* think the dP/dF will need to
be adjusted by some central authority to keep a stable system.

Jeroen Belleman