Lights out

It's almost criminal that Southern California should have as many blackouts as it has had in the last week, but no one blames the power companies (LA Dept of Water & Power and Southern California Edison.) Why not?

If Phoenix, Tucson, Yuma and Palm Springs, which have daily temperatures exceeding 100 degrees in the summer, can have uninterrupted electrical power, why can't Southern California?

The power outages are mostly caused by faulty transformers, some of which are 50 or more years old. Those old transformers, besides being old, were installed at a time when the electrical load was much less that it is now. Why have those old transformers not been upgraded? Perhaps because power company management and the California Public Utilities Commission are criminally negligent.