5 ms·

Not grid following inverters, or "any DC source", as we saw in Spain in Summer

• jamescrowley 11mo ago
  Nothing to do with the blackout in Spain - https://www.reuters.com/business/energy/what-caused-iberian-power-outage-what-happens-next-2025-06-18/ https://www.reuters.com/business/energy/what-caused-iberian-... - voltage surge and various thermal power generators failing to provide the voltage correction services they were being paid for But yes, grid following alone does not provided the required stability - synthetic inertia etc needed
  • namibj 11mo ago
    True DC grids avoid this stability issue by not having a phase and allowing power flow to pretty much just self-balance through voltage gradients and clipping of connections/devices to whatever current they can handle. With enough voltage range that wouldn't even need the tricky loops of voltage regulation common in incandescent-targeted legacy AC grids.
• bryanlarsen 11mo ago
  Yes, if you don't install grid stabilization inverters, they don't supply grid stabilization.
• icehawk 11mo ago
  From what I saw: In Spain, inverters are not allowed to provide voltage control, and what we saw in Spain, was a voltage spike that caused generators to drop offline, which then caused frequency issues.
  • robocat 11mo ago
    See report and first comment: https://news.ycombinator.com/item?id=44358668 https://news.ycombinator.com/item?id=44358668 It looked to me that regulators wanted to make solar the scapegoat for political reasons. The report indicates to me that different operators were using a random monkey theory to make changes until the grid stabilised (they clearly didn't have a handle on the root cause of the instabilities). The regulator screwed up: they are supposed to engineer the network so it can be stable (even in the face of political pressure).