PG&E Filed 10-Year Plan to Bury 5,000 Miles of Line
Utility operators should watch how this massive grid hardening effort shifts maintenance budgets and long-term capital priorities.
Updated on Oct. 5, 2026 in Utilities
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Should utility companies prioritize long-term grid safety improvements over deferring planned operational spending?
PG&E has filed a 10-year Electrical Undergrounding Plan targeting 5,000 miles of distribution lines across more than 30 counties in northern and central California. The project, which spans from 2028 to 2037, aims to mitigate wildfire risks and improve grid safety.
Why it matters
The plan signals a shift in utility infrastructure strategy that could impact regional operational costs and grid reliability. This filing arrives alongside a broader strategic business review launched by the company in September 2026.
PG&E projects $117 billion in total long-term benefits from the project compared to $6 billion in avoided maintenance and operations costs. The utility also recently announced it would defer $2 billion in spending for next year as part of its strategic review.
The players
PG&E
A major California utility provider responsible for electricity and natural gas distribution that emerged from bankruptcy in 2020.
California Office of Energy Infrastructure Safety
The state regulatory body tasked with overseeing utility-led wildfire mitigation plans and infrastructure safety filings.
The details
The initiative targets high-wildfire-risk areas by moving electricity distribution lines underground, a process intended to replace overhead lines that pose significant ignition hazards. This long-term capital investment follows the utility's emergence from bankruptcy in 2020 and its current focus on balancing wildfire response revamp proposals with fiscal constraints. The project represents a major pivot in how the utility manages its grid footprint over the coming decade.
Timeline
2020: PG&E emerged from bankruptcy.
September 2026: The utility launched a strategic business review and announced spending deferrals.
2028 to 2037: The proposed timeline for the electrical undergrounding project.
Market Landscape
This move follows a trend of heightened regulatory pressure on California utilities to mitigate wildfire risks through infrastructure hardening. It represents a significant commitment relative to the state's stringent wildfire safety mandates.
Operators in the region should track how the $2 billion spending deferral impacts near-term utility service levels and maintenance timelines. Monitoring the 10-year plan will be critical for businesses anticipating long-term grid stability improvements.
The takeaway
Large-scale infrastructure shifts like this offer a preview of how utilities are reallocating capital to minimize long-term wildfire liability. Owners should review their own facility energy reliability plans against the proposed 2028-2037 undergrounding schedule.
Further reading
For more on grid updates, see the Utilities section.
Live Poll
Should utility companies prioritize long-term grid safety improvements over deferring planned operational spending?
