More than 1.4 million SDG&E customers are without power, with millions of people affected by the outage. All other service providers have power. California Independent System Operator is helping to bring power back on.
An SDG&E official just stated, "We expect power to be out well into the night and into tomorrow in some areas."
A transmitter line between Arizona and California was severed, causing both major connections in the region, causing the outage. The extreme heat in some areas also may have caused some problems with the lines, according to SDG&E.
"Essentially we have two connections from the rest of the world: One of from the north and one is to the east. Both connections are severed," said the SDG&E official.
Source: Power Out Into the Night | NBC San Diego