Re: OT: report by the The Institute for Technological Research (IIT) at Comillas Pontifical University [Was: The real story of the Iberian blackout]

From	"Carlos E.R." <robin_listas@es.invalid>
Newsgroups	comp.os.linux.misc
Subject	Re: OT: report by the The Institute for Technological Research (IIT) at Comillas Pontifical University [Was: The real story of the Iberian blackout]
Date	2025-10-03 13:23 +0200
Message-ID	<pao4rlxhj8.ln2@Telcontar.valinor> (permalink)
References	<10bejip$35i1j$7@dont-email.me> <n1gtqlxlvf.ln2@Telcontar.valinor>

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On 2025-09-30 19:19, Carlos E.R. wrote:
> On 2025-09-29 20:36, The Natural Philosopher wrote:
>> https://www.youtube.com/watch?v=MzCiEHGVMwA
>>
>>
> Or you could read other accepted reports, including the official one 
> (posted previously on sci.electronics.design)
Other reports just published:



"This is the report paid for by Iberdrola and Endesa. Coincidentally, it 
was presented three days before the official ENTSOe report."

No blame on renewables.


<https://www.comillas.edu/noticias/el-iit-presenta-un-informe-preliminar-que-analiza-las-causas-del-apagon-del-pasado-mes-de-abril/>

     The IIT presents a preliminary report analysing the causes of last 
April's blackout
     29 September 2025

     Large voltage fluctuations, low synchronous generation and a weak 
transmission network are some of the causes

     The Institute for Technological Research (IIT) at Comillas 
Pontifical University—one of Europe's leading electrical systems 
research centres—has today published an independent preliminary report 
analysing the causes of the blackout that left the Iberian Peninsula 
without power on 28 April. The document, prepared by professors Luis 
Rouco, Enrique Lobato and Francisco M. Echavarren, concludes that the 
blackout was the result of a combination of voltage instability in the 
previous days, insufficient synchronous generation, an insufficient 
safety margin against overvoltage collapse and a weak transmission 
network, aggravated by the disconnection of renewable generation and 
operational manoeuvres that reduced the safety margin.


     The analysis reveals that synchronous generation (mainly combined 
cycle and nuclear power plants) in the southern and central areas was 
unusually low, with only one combined cycle plant in Andalusia and one 
nuclear plant in the centre. In addition, more than a third of the 400 
kV grid was disconnected for maintenance or voltage control, leading to 
poorly damped oscillations.

     The report introduces the concept of ‘overvoltage collapse’, a 
phenomenon unprecedented in Europe, where voltage increases 
uncontrollably when renewable generation is disconnected. It adds that 
the cascading overvoltage that occurred is unprecedented in the European 
electricity system.

     The researchers also emphasise that the manoeuvres carried out by 
Red Eléctrica de España between 12:00 and 12:30 —connecting lines to try 
to dampen the oscillations— further reduced the safety margin, 
accelerating the collapse of the system.

     The IIT recommends reviewing the criteria for synchronous 
generation scheduling and voltage control procedures, especially in 
scenarios of high renewable penetration, and urges the use of more 
advanced metrics to anticipate risk situations. The report also 
highlights the importance of strengthening coordination between the 
various players in the electricity sector and adapting the operation of 
the system to the new challenges of the energy transition, with the 
massive integration of renewables.



Translated with DeepL.com (free version)


-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-29 19:36 +0100
  Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-09-29 21:49 +0200
    Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-29 21:03 +0100
    Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-09-29 22:21 +0200
      Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-30 10:31 +0100
        Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-09-30 12:33 +0200
          Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-30 12:55 +0100
            Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-09-30 19:03 +0200
              Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-30 21:11 +0100
                Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-09-30 22:22 +0200
                Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-30 22:45 +0100
                Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-10-01 00:28 +0200
                Re: OT: The real story of the Iberian blackout Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-09-30 18:45 -0700
                Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-10-01 09:19 +0100
                Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-10-01 11:20 +0200
                Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-10-01 12:20 +0100
                Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-10-01 13:45 +0200
                Re: OT: The real story of the Iberian blackout Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-01 09:35 -0700
                Gnome 49 [Was: OT: The real story of the Iberian blackout] "Carlos E.R." <robin_listas@es.invalid> - 2025-10-01 19:22 +0200
                Re: Gnome 49 John Ames <commodorejohn@gmail.com> - 2025-10-01 10:48 -0700
                Re: Gnome 49 Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-01 11:16 -0700
                Re: Gnome 49 rbowman <bowman@montana.com> - 2025-10-01 18:47 +0000
                Re: Gnome 49 Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-01 15:38 -0700
                Re: Gnome 49 rbowman <bowman@montana.com> - 2025-10-02 04:24 +0000
                Re: Gnome 49 Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-01 22:22 -0700
                Re: Gnome 49 rbowman <bowman@montana.com> - 2025-10-02 07:20 +0000
                Re: Gnome 49 Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-02 11:17 +0100
                Re: Gnome 49 The Natural Philosopher <tnp@invalid.invalid> - 2025-10-02 12:04 +0100
                Re: Gnome 49 Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-02 11:13 +0100
                Re: Gnome 49 John Ames <commodorejohn@gmail.com> - 2025-10-02 07:46 -0700
                Re: Gnome 49 Jim Jackson <jj@franjam.org.uk> - 2025-10-02 16:12 +0000
                Re: Gnome 49 John Ames <commodorejohn@gmail.com> - 2025-10-02 09:38 -0700
                Re: Gnome 49 Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-03 00:04 +0100
                Re: Gnome 49 Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2025-10-04 09:45 +0300
                Re: Gnome 49 "Carlos E.R." <robin_listas@es.invalid> - 2025-10-04 20:27 +0200
                Re: Gnome 49 Rich <rich@example.invalid> - 2025-10-04 15:28 +0000
                Re: Gnome 49 John Ames <commodorejohn@gmail.com> - 2025-10-06 08:41 -0700
                Re: Gnome 49 Jim Jackson <jj@franjam.org.uk> - 2025-10-02 11:18 +0000
                Re: Gnome 49 The Natural Philosopher <tnp@invalid.invalid> - 2025-10-02 11:19 +0100
                Re: Gnome 49 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-02 19:03 +0000
                Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-10-01 18:33 +0100
                Re: OT: The real story of the Iberian blackout Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-03 10:02 +0100
                Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-10-03 10:07 +0100
                Re: OT: The real story of the Iberian blackout Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-01 09:25 -0700
                Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-10-01 18:31 +0100
            Re: OT: The real story of the Iberian blackout Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-03 09:50 +0100
              Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-10-03 10:05 +0100
              Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-10-03 13:35 +0200
      Re: OT: The real story of the Iberian blackout Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-03 09:21 +0100
        Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-10-03 13:28 +0200
  Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-09-30 19:11 +0200
    Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-30 21:13 +0100
      Re: OT: The real story of the Iberian blackout Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-03 10:48 +0100
        Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-10-03 10:56 +0100
  Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-09-30 19:19 +0200
    Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-30 21:14 +0100
      Re: OT: The real story of the Iberian blackout "Carlos E.R." <robin_listas@es.invalid> - 2025-09-30 22:22 +0200
        Re: OT: The real story of the Iberian blackout The Natural Philosopher <tnp@invalid.invalid> - 2025-09-30 22:45 +0100
    Re: OT: report by the European Network of Transmission System Operators for Electricity (ENTSO-E) [Was: The real story of the Iberian blackout] "Carlos E.R." <robin_listas@es.invalid> - 2025-10-03 13:23 +0200
    Re: OT: report by the The Institute for Technological Research (IIT) at Comillas Pontifical University [Was: The real story of the Iberian blackout] "Carlos E.R." <robin_listas@es.invalid> - 2025-10-03 13:23 +0200

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