CompanyGraph
PG&E Corporation
PCG · NYSE Arca · United States
Delivers electricity and gas to 47 Northern and Central California counties as the only provider allowed to do so.
PG&E delivers electricity and natural gas to every home and business across 47 Northern and Central California counties under a state certificate that makes it the only legal provider in that territory — customers cannot switch even during an outage. Because the service area spans vast stretches of fire-prone forest and grassland, the power lines connecting that grid cannot realistically be buried, so each worsening fire season adds wildfire ignition liability that PG&E cannot reduce without undergrounding costs it cannot recover from ratepayers — a dynamic that already pushed the company into bankruptcy once. The one asset that keeps the grid carbon-free and economically stable is Diablo Canyon, a 2,200 MW nuclear plant running on an extended federal license inside a state that has banned new nuclear construction, meaning no one can build a replacement regardless of how much money is available. When Diablo Canyon closes in 2030, that carbon-free capacity is gone, and the permitting processes required to interconnect anything new to the California grid take longer than the closure timeline allows, leaving PG&E legally obligated to serve 47 counties with a gap in its generation that nothing in the pipeline can fill in time.
How does this company make money?
The CPUC sets the rates PG&E can charge based on the capital PG&E has invested in its grid and generation assets — the more approved infrastructure it owns, the more revenue it is allowed to collect. Fuel costs and certain operating expenses are automatically passed through to customers rather than absorbed. PG&E can also earn additional payments if it hits specific safety and reliability targets set under multi-year rate plans approved by regulators.
What makes this company hard to replace?
Customers cannot switch because the CPUC franchise certificate makes it illegal for any other utility to serve PG&E's territory. There is no competing electric or gas provider to move to — not during a Public Safety Power Shutoff, not at any other time. Diablo Canyon's grid connections and transmission rights are also tied to CAISO operational requirements and would require full environmental review to transfer or replace, a process that takes years.
What limits this company?
The overhead power lines running through high fire-risk land are the core physical constraint. Burying all of those lines underground would cost more than the company could ever recover, so most of them stay above ground. Every mile left overhead adds the risk of starting a wildfire, and that risk grows worse each year as fire seasons get longer and more severe — not because of anything PG&E decides, but because of climate change and the sheer size of the territory it is required to serve.
What does this company depend on?
PG&E cannot operate without four things: the CPUC certificates that grant it the exclusive right to serve its territories, the NRC operating license that keeps Diablo Canyon running, the Sierra Nevada snowpack and reservoir system that feeds its hydroelectric generation, and the Pacific Gas Transmission pipeline system that moves natural gas to customers. It also relies on CAISO and PJM grid interconnections to buy and sell wholesale power.
Who depends on this company?
Bay Area data centers — including major tech facilities — go dark immediately during Public Safety Power Shutoffs because there is no other grid to switch to. Central Valley agricultural operations lose the irrigation pumps that water their crops during extended outages. All residential and business customers across 47 counties have no alternative electric or gas provider to call, because the exclusive franchise means PG&E is the only option by law.
How does this company scale?
When regulators approve new spending on grid upgrades or generation, PG&E earns a set return on that investment through its rates — so approved capital spending reliably grows earnings. What does not get easier as the company grows is wildfire liability: every additional mile of overhead line in a high fire-threat area adds exposure that compounds faster than the territory expands, and those lines cannot be economically buried across a service area this large.
What external forces can significantly affect this company?
California's wildfire seasons are getting longer and more destructive due to climate change and forest management conditions, which directly worsens the risk posed by PG&E's overhead lines every year. The CPUC requires PG&E to help California reach carbon neutrality by 2045, which means transitioning customers away from natural gas — a significant part of the current business. Seismic activity along the San Andreas and Hayward faults is a constant physical threat to both Diablo Canyon and the transmission lines that cross earthquake-prone terrain.
Where is this company structurally vulnerable?
If an earthquake on the San Andreas or Hayward fault forces the NRC to suspend Diablo Canyon's operating license before 2030, or if Diablo Canyon closes as scheduled in 2030 without CAISO having approved new power connections to replace its 2,200 MW, PG&E loses its carbon-free baseload anchor. California's environmental review process for approving new generation connections takes longer than the closure timeline allows. PG&E would still be legally required to serve all 47 counties, but the generation capacity that made that manageable would be gone.
Supply Chain
Electricity Grid Supply Chain
The electricity grid is shaped by three structural constraints that no other supply chain faces simultaneously: electricity cannot be stored at scale and must be consumed the instant it is generated, power degrades over distance with capacity set by the weakest link in the transmission path, and grid topology was built over a century and cannot be quickly reconfigured.
Nuclear Energy Supply Chain
The nuclear energy supply chain is shaped by three structural constraints that most industries never encounter: regulatory and licensing timelines that stretch beyond a decade before a reactor generates a single watt, a fuel cycle where each step — mining, conversion, enrichment, fabrication — is restricted by both physics and international treaty, and a decommissioning obligation embedded from the moment a plant is approved, binding operators to costs that extend decades beyond the last kilowatt-hour sold.