Pacific Gas and Electric Company

PG&E says prospective data-centre projects in its service area now exceed 12 GW. Its estimate that each additional 1 GW could cut monthly customer bills by 1% or more depends on “appropriate pricing”—the condition that decides whether new load shares grid costs or transfers them.

San Bruno shows why a gas utility must treat pipe records, material verification, integrity assessment, control-room recognition and rapid isolation as one safety system rather than separate engineering and administrative functions.

The pipe that ruptured in San Bruno was not an unknowable object buried beyond managerial control. It had been assembled from short welded pieces, moved during a 1956 construction project, represented incorrectly in company records, operated without a strength test that would have exposed its weakest seam, and placed inside an integrity program that treated manufacturing defects as stable. When a routine electrical project raised pressure on 9 September 2010, the line remained below its federal maximum allowable operating pressure. A properly constructed pipe should have held. The failure therefore tested more than metallurgy: it tested whether a gas utility, its regulator and the federal safety system could turn construction history, uncertain records, operating data and emergency capability into defensible evidence of safety.

The Camp Fire was ignited by a specific mechanical failure on a specific 115 kV transmission tower. Its scale, however, cannot be explained by one broken hook. The public record connects worn century-old hardware, inspections that could not reliably see the relevant components, deficient records, risk decisions that excluded the line from pre-emptive shutoff, extreme fire weather, and an evacuation system overtaken by extraordinary fire spread. Accountability depends on keeping those layers distinct while asking who controlled each one and what evidence can now prove that the controls changed at the component, operating and remedy levels.