Iberien Peninsular Blackout

There is an interesting article on Medium https://medium.com/@IntrinsicalAI/just-a-blackout-what-public-data-reveals-about-the-iberian-grid-collapse-of-april-28th-2025-cb9acc1f783a that strongly notes that there was a major IT outage (loss of internet connectivity) across Portugal and Spain 5 minutes before the main power outage. 

This appears to be the 'wrong' way around from a Power Systems first perspective. There may have been a clock synchronisation issue, but I think that would be completely unrealistic (but who knows?). Perhaps more likely the power system control had slowly been digitised and now was suffering from a loss of connectivity between control nodes, resulting in unhelpful fall backs of operating status.

Also noted was that the open source power reports showed that the Portuguese power grid started going down first. Ultimately the guy reporting the details then falls back onto the conspiracy theory that this was expressly planned as a cyber attack on the whole grid. Again I don't think this wasn't really the case.

It could easily be that there was a small cyber attack on the Portuguese internet's Border Gateway Protocol (BGP) system (or thereby) that controls how the main internet servers talk to each other, which then had unforeseen consequences that ultimately tripped the grid collapse.

At least the guy gives references. A good story to ponder.

There is an interesting article on Medium https://medium.com/@IntrinsicalAI/just-a-blackout-what-public-data-reveals-about-the-iberian-grid-collapse-of-april-28th-2025-cb9acc1f783a that strongly notes that there was a major IT outage (loss of internet connectivity) across Portugal and Spain 5 minutes before the main power outage. 

This appears to be the 'wrong' way around from a Power Systems first perspective. There may have been a clock synchronisation issue, but I think that would be completely unrealistic (but who knows?). Perhaps more likely the power system control had slowly been digitised and now was suffering from a loss of connectivity between control nodes, resulting in unhelpful fall backs of operating status.

Also noted was that the open source power reports showed that the Portuguese power grid started going down first. Ultimately the guy reporting the details then falls back onto the conspiracy theory that this was expressly planned as a cyber attack on the whole grid. Again I don't think this wasn't really the case.

It could easily be that there was a small cyber attack on the Portuguese internet's Border Gateway Protocol (BGP) system (or thereby) that controls how the main internet servers talk to each other, which then had unforeseen consequences that ultimately tripped the grid collapse.

At least the guy gives references. A good story to ponder.