California is casting off fossil fuels on its way to becoming a fully electrified state. But it's unclear whether the aging electricity grid can deliver.
What could happen if PG&E, which provides natural gas and electricity to 16 million people in northern and central California, goes bankrupt in the aftermath of the deadliest blaze in state history.
Reaching Gov. Jerry Brown's goal of a carbon-neutral California would require massive expenditures on the electrical grid and for zero-emission vehicles.