Grid · Analysis

Public safety power shutoffs, and the year the winds behaved

Southern California Edison's shutoff program is the bluntest resilience tool the basin has. Here is how the call gets made, what backup really costs, and what the year-over-year trend shows.

BY THE RENEWABLE ENERGY LA EDITORS · FILED OCTOBER 2, 2026 · 6 MIN READ ·

How Edison decides to pull the plug

Edison's meteorology team does not flip one switch for the whole territory. The decision runs circuit by circuit, weighing sustained and gusting wind speed, how dry the brush is (fuel moisture, measured in the field and by weather stations), and whether the National Weather Service has posted a red flag warning for that stretch of mountain or valley. A canyon line above Malibu can go dark while a flatland feeder a few miles south stays on, because the wind and the fuel are not the same on both.

None of this is automatic, and that is the part worth sitting with. The utility aims to warn customers ahead of a shutoff, often on the order of a day or two when the forecast allows, though fast-building wind events can shrink that window to hours. After each event, Southern California Edison files a post-event report with the California Public Utilities Commission, the state regulator that reviews whether a shutoff was justified and whether customers were told in time. If you want to check the reasoning on your own outage, that public filing is where it lives.

The year the winds behaved

Some Santa Ana seasons simply do not show up. The offshore wind that drives the worst fire weather, dry air sliding down from the high desert in fall and early winter, varies a great deal year to year, and a mild season can mean far fewer shutoff hours than a bad one. This desk is careful not to put a hard number on it, because the honest answer is that the count swings with the weather and no two autumns are alike. A quiet year is luck, not a fixed new baseline.

Over a longer arc, the utilities are trying to make the tool less blunt. Covered conductor (power lines wrapped in insulation so a branch or a blown object is less likely to spark) and selective undergrounding are meant to shrink how many customers a shutoff has to touch. The CPUC has pushed in the same direction, pressing for narrower, shorter events. Whether that shows up as fewer dark hours depends, again, on how hard the wind blows in any given October.

What backup actually looks like

Backup in the basin spans a wide range of money and effort. At the low end, a reader keeps a few charged power banks and a cooler. In the middle sit portable generators, which need fuel on hand and cannot run indoors. At the high end are home batteries paired with rooftop solar, which can carry a refrigerator and a few circuits through a multi-day shutoff but cost real money up front. Edison also opens Community Crew Vehicles and resource centers during longer events, where people can charge phones and pick up water, though those are a stopgap, not a substitute for power at home.

The honest math is that the people most exposed to shutoffs, in the foothill and canyon communities, are not always the ones who can most easily afford a battery. California's Self-Generation Incentive Program (SGIP, a state rebate that can cover part of a storage system) sets aside money for medical-baseline and higher-risk customers, but the funds are limited and the paperwork is real. If your household depends on powered medical equipment, telling Edison so matters, because medical-baseline customers are supposed to get extra notice and outreach before the lights go out.

Worth watching this month

1. Watch the National Weather Service Los Angeles office for red flag warnings through October and into the heart of Santa Ana season, since those posts are the clearest early sign a shutoff may be coming.

2. Watch for Southern California Edison's post-event PSPS reports at the CPUC after any shutoff, which is the routine filing that shows why your circuit was de-energized.

3. Watch SGIP battery rebate availability, especially the equity and resiliency budgets, which open and close as funds are committed and are worth checking before you assume a rebate is there.

4. Watch the CPUC's ongoing PSPS oversight proceeding, a slow docket that rarely moves fast but is where any tightening of the rules would actually happen.

5. Watch fuel moisture and humidity in the local forecast discussion, routine readings that quietly decide how twitchy the grid operators will be on a windy afternoon.

Where this dispatch reads

California Public Utilities Commission, PSPS page (state regulator, .gov), www.cpuc.ca.gov/psps, The state's oversight of shutoffs, including utility post-event reports and the rules utilities must follow.
National Weather Service, Los Angeles/Oxnard office (federal, .gov), www.weather.gov/lox, Red flag warnings and the forecast discussions that signal when Santa Ana fire weather is coming.
CAL FIRE (state fire agency, .gov), www.fire.ca.gov, Fire conditions, incident information, and context on why the fire-weather thresholds matter.
Southern California Edison, PSPS information, www.sce.com/wildfire/psps, The utility's own shutoff maps, alerts signup, and resource-center locations during events.
LADWP (Los Angeles city utility), www.ladwp.com, Power-supply and outage information for customers inside the City of Los Angeles.
California Self-Generation Incentive Program (SGIP), www.selfgenca.com, The state battery-storage rebate, including the equity and resiliency budgets aimed at higher-risk customers.

Questions readers have asked

Is a PSPS the same as a rolling blackout?

No. A PSPS is a fire-safety shutoff during dangerous wind and dry conditions. A rolling blackout is a grid-operator step when there is not enough electricity supply, usually in a heat wave, and the California Independent System Operator manages those separately.

Does the City of Los Angeles see many shutoffs?

Far fewer than the foothill suburbs. The city proper is served by LADWP, and most of its lines do not run through the worst wind-driven brush, so the program mostly affects Edison territory at the basin's edges.

Will Edison pay for spoiled food or a hotel?

Sometimes, under limited claim programs the utility runs for longer shutoffs, but the terms change and are not guaranteed. Check the utility's current PSPS claims page rather than assuming reimbursement.

How much notice will I get?

Often a day or two when the forecast cooperates, and much less when a wind event builds fast. Keeping your contact details current with Edison is the single best way to get whatever warning there is.