PG&E’s Bankruptcy Shows Blindspots in Green Investing
The bankruptcy filing by PG&E Corp. is the latest stumble by a company rated highly by environmentally focused investors, further exposing a weakness in a scoring system meant to measure risk for shareholders, the Wall Street Journal reported. The California utility’s moves over the past 10 years to rely more on renewable sources such as wind and solar resulted in high scores on environmental, social and governance metrics, which are considered by many investors to be a positive factor in choosing a stock and used by others as a way of managing risk. What the ratings couldn’t predict is that the stock would lose nearly 70 percent of its market value since early November, as investors worried about potential liabilities for the role PG&E’s equipment may have played in multiple wildfires. PG&E Corp. filed for bankruptcy protection on Jan. 29. Even as the world’s biggest asset managers pile into ESG investing strategies — an estimated $22.89 trillion invested with ESG in mind, according to industry group the Global Sustainable Investment Alliance — the ratings and analysis that underpin sustainable investment scores remain more art than a science. The data is often self-reported, and there can be blind spots, like those revealed when companies such as PG&E, Volkswagen AG and Facebook Inc. ran into trouble. “These data providers almost have an impossible task in front of them” because it isn’t standardized, said George Serafeim, a professor at the Harvard Business School. “The whole field is very messy.”
