Hi,
I read this thread about possible cause of the big Spain blackout: Thread by @BurggrabenH on Thread Reader App – Thread Reader App
My idea:
Could this inertia effect be imitated by the software controlled inverters?
As I understand my small Victron inverter, it can contribute to the grid in a such way it could help to “pull the wave” in a needed direction.
So it could be fixed by just software update.
Do you want external parties to be able to control your inverter?
The same party already do - inverter matches frequency of the grid. All I propose is to let inverter help the grid in stabilizing the frequency when it detects this kind of issue.
They were missing 15GW, thats lots of small inverters.
Spain has lots of sun and free space, but they don’t have much solar. I wonder why they don’t build more, they could probably even reach those 15GW.
They would need that much battery too - which makes it expensive…
In this case…the blackout started at high noon under the full sun…no batteries needed.
And in first case I’d prefer hydroelectric power plants over batteries, Spain has thousands of mountains and valleys, mostly uninhibited.
Hi Ludo, from the article referenced above, it seems like the export route for the solar power suddenly collapsed, so a battery storage system would be needed to absorb the power to stabilise the system.
Of course, if you put in a lot of hydro, then you can use pump storage as a gravity battery. Had one of those in my county back in Wales. The Dinorwic pump storage system was operational in the 1970’s as a dump load for the local Nuclear plant…Probably cheaper than lithium at large scale, and less to go wrong.
Yes it could - and for example in the German Grid-Code, there even is a requirement, that ANY ESS needs to raise it’s output to 100% nominal power, if grid frequency drops bellow 49.8 Hz.
That obviously is some sort of “try to avoid grid-breakdown by utilizing every ESS existing” rule.
(But no need to worry about loosing valuable SoC in that case - if grid drops to 49.8 Hz, it’s a matter of seconds until it either stabilizes or breaks down completly)
Heres a nice site, gridfrequencyradar, usually only varies by +/- 0.05%: