Live data from Hacker News

Europe: close to power grid blackout (49,74Hz power line frequency)

twitter.com

1–10 of 146 posts

Re: Europe: close to power grid blackout (49,74Hz power line frequency)

#3
> If I haven't miscalculated, then this waste means the #Netzfrequenz that there was a sudden drop in power of over 4.5GW. That would be a lot more than a power plant. So junction could get there.

https://twitter.com/netz_frequenz/status/1347537615097049101...

Re: Europe: close to power grid blackout (49,74Hz power line frequency)

#4
Google translate of the first tweet (in German):

> Extreme nightcap in the #network frequency. Quite unusual at this height and at this point in time. One of my measuring devices even shows 49.74Hz as a minimum. Has a major #power plant failed somewhere?

And second tweet:

>Here is another representation of the # mains frequency from just now. Extremely unusual, as a malfunction is to be suspected. Unfortunately, none of my network analyzers are currently running to check the exact course.

Re: Europe: close to power grid blackout (49,74Hz power line frequency)

#5
My German is limited to introductory conversations and ordering food, so I'm not really sure what's going on with this case. It does, however, look like the warning signs were there.

https://www.mobilityhouse.com/int_en/magazine/company/tmh-wo...

https://www.armstrongeconomics.com/markets-by-sector/energy/...

Re: Europe: close to power grid blackout (49,74Hz power line frequency)

#6
post #2

As someone who doesn't speak German and has only a cursory understanding of the electrical grid - how significant is this?

One of the comments in the Twitter thread was "I've been measuring the grid for 10 years and have never seen anything like this".

Re: Europe: close to power grid blackout (49,74Hz power line frequency)

#7
post #2

As someone who doesn't speak German and has only a cursory understanding of the electrical grid - how significant is this?

In general, slowing frequency is an indicator of a heavily loaded grid. I don't have an appreciation how much the frequency can practically be off the nominal 50 Hz (in Europe) before it indicates grid failure.

Re: Europe: close to power grid blackout (49,74Hz power line frequency)

#10
post #8
post #2

As someone who doesn't speak German and has only a cursory understanding of the electrical grid - how significant is this?

Very. It means that the grid suddenly lost a significant amount of generating power.

Or added a ton of load faster than it could ramp up
Post reply on HN