Massive Blackout Leaves One-Third of San Francisco in Darkness
Subtitle: What Sparked the PG&E Facility Fire — and Why It Matters
Abstract:
When I was in high school, electrical power engineering was considered the pinnacle of the technical sciences. It was demanding, unforgiving, and only about half the students who entered the program would graduate. Today, the brightest talents are drawn instead to software, finance, and networking — fields with faster rewards and fewer sleepless nights.
But the cost of that shift is now becoming visible.
Because when the lights go out, the world suddenly remembers how essential — and how vulnerable — our power systems really are.
And unless we make this field attractive again, we may lose far more than we expect.
Preamble (🇱🇷English):
On December 20, 2025, a massive power outage, triggered by a fire at a PG&E electrical substation, plunged nearly one-third of San Francisco into darkness, cutting electricity to about 130,000 homes and businesses . The blackout darkened entire neighborhoods on the city’s north side – including the Richmond and Presidio districts and areas around Golden Gate Park – leaving even street lights and Christmas decorations dark
Why did the PG&E substation catch fire
- and how did it plunge San Francisco
into darkness?"
“Yes — it’s electricity time. ⚡️
When the lights are on, nobody thinks about “availability.”
But when a city goes dark… everyone suddenly remembers Edison and Tesla.
And speaking of electricity —
America has always had a quiet tradition of broken promises…
especially when innovation meets business.
Edison once promised Tesla great rewards —
then refused to pay him.
Tesla replied not with anger —
but with AC power.
And today, when a single substation fire can silence one-third of San Francisco,
we are reminded that AC didn’t “win” by chance.
It won because the grid is a living, breathing system —
designed to survive faults, arc failures, and breaker mis-operations.
A journalist asked PG&E why
— after “preventive maintenance” only two weeks ago —
a single event caused such a collapse.
Their COO said:
“Some of our updates were inaccurate. We’ll make things right.”
But that is the point:
🛑 When promises fail — systems fail.
🛑 When reliability becomes PR — cities go dark.
Even the circuit breaker mentioned in the briefing
is not just a switch —
it is the guardian of the grid.
Breakers fail rarely —
but when they do, the arc sits mid-transition,
and if isolation paths are not available or properly coordinated,
fire arrives — and the grid bows.
Tesla and Edison both knew that AC must survive fault-energy —
or it would never power a city.
🔌 So yes — AC won.
But promise-keeping should win too.
Because trust is the real current that keeps a city alive.
#SanFrancisco #PowerOutage #GridReliability #Tesla #Edison #ENTSOE
🌿 We continue forward.
— Abdolhamid
@ENTSO_E
#SanFrancisco #PowerOutage #GridReliability #Tesla #Edison #ENTSOE #SanFrancisco #PowerOutage #GridResilience #CriticalInfrastructure
#EnergySecurity #ElectricGrid #UtilityOperations
#FERC #DOE #NERC #IEEE #CISA #FEMA
#InfrastructureSafety #PublicSafety #ResilientCities
#TransmissionAndDistribution #PowerEngineering
#FERC (Federal Energy Regulatory Commission)
#DOE (US Department of Energy)
#NERC (North American Electric Reliability Corporation)
#CISA (Cybersecurity & Infrastructure Security Agency)
#IEEE (Institute of Electrical and Electronics Engineers)
#FEMA (Federal Emergency Management Agency
#Substation #CircuitBreaker #ACvsDC
#ElectricUtility #GridOperations
#Reliability #Maintenance #RiskManagement
#EngineeringLeadership #EnergySystem
#GridReliability @FERC @emra #Hitachi Energy Energy Market Regulatory Authority (EMRA)
#CriticalInfrastructure @POTUS EU Energy
#GüçSistemleri @NERC_Official @FERC Careers
🌿 We continue forward.