[Robert357]

Actually since it was interruptible, it should have been a stage 2. However, why there wasn't an announcement is beyond me. I find it especially interesting that the WECC is saying that "... deficient CISO ACE as a result of load shedding not occurring when planned."

Therefore, either some load tripping relays didn't work (which is really, really bad) or somebody refused to dump load when they should have (which is also really, really bad).

This whole thing smells of something strange going on. Yes there were fires that were beyond the control of the various transmission facility owners and the ISO, but the ISO is really suppose to follow Standard Operating Procedures or else things will end up in complete chaos.

[snopercod]

why there wasn't an announcement is beyond me

No it's not. You know exactly why there wasn't an announcement.

somebody refused to dump load when they should have

I'd bet money on that. It happened once before, remember? I'm pretty sure that it was the City of Lodi that set the trend. I can't find the article on FR, sorry.