To be fair to PG&E, they were forced to sell or turn over many assets, by the PUC and lawsuits. Some of their most lucrative power generation plants (such as the Steam Geysers plant) were forced sales. At the same time, PG&E was forced to maintain infrastructure used by power generated by other companies. Turning off the power to avoid risk of further lawsuits makes sense.
Like at the end of Atlas Shrugged.
Who is John Galt?