You are conveniently leaving a few details:
1. PG&E was required by the State of California to provide power no matter what.
2. PG&E was not allowed by the State of California to change retail prices without the State's approval. This resulted in them being forced to buy and sell electricity at a loss until they went bankrupt.
3. ENRON's little scheme was a two part scheme. ENRON was nothing but paper. The entire company was essentially fake. Anyone holding their stock got ripped off. The other part was to take advantage of CA idiotic price fixing scheme to bleed both PG&E and the taxpayers of CA dry which they did for years. Everyone at ENRON was a criminal set on taking advantage of a situation created by the State of California not the market.
4. CA put itself in the situation where they had to buy power from outside the State since they killed off all but the cleanest natural gas power plants with heavy handed environmental regulation.
5. What little solar and wind power was available PG&E was forced to buy at an enormous loss. To add insult to injury, the Federal Gov't was heavily subsidizing wind farms through grants and purchase requirements, causing areas such as Tehachapi to sprout wind turbines like weeds forcing PG&E to buy even more power from them far above the rates charged to customers.
6. With the retail prices set artificially low PG&E customers gorged themselves on electricity priced bellow the market price. This accelerated the collapse of PG&E and resulting in the summer rolling blackouts which continued even after the State stepped in to bail out the now bankrupt PG&E.
So yes I called ENRON a side show, because California set itself up for failure, all ENRON did was take advantage of the very system that California had created.
ENRON could not have pulled off their theft without the utility monopoly created by California, the price fixing set by California, and the severe lack of in state power production, again created by California.