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2025 Iberia Blackout Report [pdf]

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Re: 2025 Iberia Blackout Report [pdf]

#11
Page 130 is where the actual human readable summary is. Although the previous pages were pretty detailed in explaining the cumulative instabilities.

Sadly, some news outlets are probably only going to look at the recommendations and read "cybersecurity" and (even though they are common sense recommendations) assume there might be more to say about the matter.

Re: 2025 Iberia Blackout Report [pdf]

#12

Reads very similar to some blackouts we had in Australia. Weakly connected grids with vast geographical distances leading to oscillations that took down the grid. https://en.wikipedia.org/wiki/2016_South_Australian_blackout Completely solved with lithium based grid storage at key locations btw. This grid storage has also been massively profitable for it's owners https://en.wikipedia.org/wiki/Hornsdale_Power_Reserve#R…

> nor are brief periods of multi-gigawatt draw/dumping as needed.

Actually this is typically an issue for grid batteries.

Spinning generators can easily briefly go to 10x the rated current for a second or so to smooth out big anomalies.

Stationary batteries inverters can't do 10x current spikes ever - the max they can get to is more like 1.2x for a few seconds.

That means you end up needing a lot of batteries to provide the same spinning reserve as one regular power station.

Re: 2025 Iberia Blackout Report [pdf]

#14

Reads very similar to some blackouts we had in Australia. Weakly connected grids with vast geographical distances leading to oscillations that took down the grid. https://en.wikipedia.org/wiki/2016_South_Australian_blackout Completely solved with lithium based grid storage at key locations btw. This grid storage has also been massively profitable for it's owners https://en.wikipedia.org/wiki/Hornsdale_Power_Reserve#R…

> nor are brief periods of multi-gigawatt draw/dumping as needed. Actually this is typically an issue for grid batteries. Spinning generators can easily briefly go to 10x the rated current for a second or so to smooth out big anomalies. Stationary batteries inverters can't do 10x current spikes ever - the max they can get to is more like 1.2x for a few seconds. That means you end up needing a lot of batteries to prov…

Collectively Australia's battery storage systems will be able to beat any single power plant for peak output in Australia once fully built out based on pure numbers. But for these sorts of grid oscillations the more important thing is the localization of generation. Which obviously favours the batteries over large centralized power stations in any case.

Re: 2025 Iberia Blackout Report [pdf]

#15
post #8
post #3

[flagged]

What I'm reading from that quote is that the issue wasn't renewables as such, but an issue of power generation reacting too quickly and too intensely to price fluctuations. "Renewables" only matter insofar as they're the sort of generation that, under the current regulatory regime, get to react to those pricing changes.

[dead]

Re: 2025 Iberia Blackout Report [pdf]

#17
It doesn't look like this report really identifies the root causes...

I would like to see: "We have simulated the complete 200 and 400 kV grid of the iberian peninsula and western europe, and can reproduce the situation that occurred. Any one of the following changes would have prevented the issue, and we suggest implementing them all for redundancy. This simulation will be re-run every day from now on to identify future cases similar incidents could occur"

Re: 2025 Iberia Blackout Report [pdf]

#19

> Non-confidential version of the report of the committee for the analysis of the circumstances surrounding the electricity crisis of the April 28, 2025 Now I'm curious about what's in the confidential version of the report.

Based on the redacted bits, it is mostly company names and locations.

Re: 2025 Iberia Blackout Report [pdf]

#20
post #11

Page 130 is where the actual human readable summary is. Although the previous pages were pretty detailed in explaining the cumulative instabilities. Sadly, some news outlets are probably only going to look at the recommendations and read "cybersecurity" and (even though they are common sense recommendations) assume there might be more to say about the matter.

Don't worry, some news outlets will summarize this as "renewables = bad" regardless of what the report actually says.

Oh wait, they already did: https://www.telegraph.co.uk/business/2025/06/18/renewable-en...

Ed: Do I need a /s tag here or something? My point was that we shouldn't worry too much about about the presentation of the report, its actual contents will be spun to suit any narrative regardless.

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