Routine work on a substation apparently led to a power outage that left more than 1.4 million customers – about 5 million people – without power for 12 hours Sept. 8 and 9 in Southern California,Arizona and Mexico.According to the Arizona Public Service, the outage began about 3:30 p.m. PDT Thursday when a major 500-kV line from Arizona to Southern California tripped off. The outage forced the automatic shut down of the San Onofre Generating Station, a nuclear powerplant. The powerplant and power imported from Arizona on the 500-kV line are the region’s primary sources of power. Without that electricity,
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.