What Happens to Your Automatic Gate During a PG&E Power Outage?

As this is written, PG&E's own site is carrying an active Public Safety Power Shutoff alert, and the North Bay is doing exactly what fire season does. A strong ridge has flattened the marine layer, northwest winds are filling back in behind it, humidity has dropped hard, and the dry seasonal grass is behaving like ready fuel. Two fires already broke out in Wine Country. One near Hood Mountain forced evacuations in the Oakmont neighborhood of Santa Rosa before crews held it to roughly sixteen acres, and the Hardin Fire in Pope Valley was stopped at seventy-nine with no homes lost. In Mill Valley, PG&E contractor crews spent a fourteen-hour shift clearing branches off the lines ahead of a shutoff.

Which leads to the one question every Bay Area gate owner should be able to answer without hesitating: if PG&E cuts your power tonight, does your gate open?

For a lot of homeowners the honest answer is - "I'm not sure," and that uncertainty is the whole problem. Every wildfire season across the Bay Area, PG&E turns off power to cut the risk of its equipment sparking a fire, so if you own an automatic gate in this region, an outage is not a rare accident but a seasonal near-certainty you should plan for. A power outage should never be the first time you learn how your gate behaves without electricity. The good news is that the fix is straightforward once you understand what actually fails, and the failure is bigger than most people expect. It is not just the motor.

The Context

Why Bay Area Gates Need an Outage Plan

PG&E turns off power on purpose during dangerous fire weather, and it is blunt about why. Severe weather like high wind can damage equipment, dry vegetation can turn a spark into a wildfire, so the utility shuts the power off to keep people safe. That planned shutoff is a Public Safety Power Shutoff, or PSPS. PG&E decides to call one based on a specific set of conditions: low humidity, forecasted high winds, dry material on the ground, vegetation near the powerlines, Red Flag Warnings from the National Weather Service, and real-time observations on the ground. Read that list again next to what the North Bay is doing right now and the connection is obvious. The conditions the utility watches for are the conditions outside.

There is a second kind of outage worth knowing about, because it gives no warning at all. Enhanced Powerline Safety Settings, often called "fast trip," make the protective equipment on a line hypersensitive during fire season, so the line de-energizes in a fraction of a second the moment a fault is detected, such as a branch touching a conductor. These outages tend to be short, but they arrive with no advance notice, and your gate loses power just the same as it would in a planned event.

Not every address faces the same odds. The California Public Utilities Commission sorts the state into wildfire-risk tiers, and homes in Tier 2 (elevated risk) and Tier 3 (extreme risk) are the ones most likely to be shut off. That is why the wooded, wind-exposed parts of the region get hit first: the Santa Cruz Mountains, the hills east of Milpitas around Calaveras, the Oakland and Berkeley Hills, the Mount Diablo foothills, and the North Bay ranges. The scale has come down from the worst years. The 2019 season affected roughly two million PG&E customers with outages averaging around forty-three hours, while 2022 saw no de-energizations at all and recent seasons have been far more surgical, with the most recent event on PG&E's report page falling in May 2026. Smaller than it was, though, is not the same as gone. In the hills it remains a near-annual event, and that is reason enough to have a plan.

The Problem

The First Problem: Does the Gate Move at All?

When the grid drops, your operator loses its normal power, and what happens next depends entirely on the equipment and how it was installed.

If the operator is AC-powered with no backup, or if the backup batteries are dead, weak, disconnected, expired, or never installed in the first place, the motor stops operating. This is the case homeowners are most likely to run into, and the symptoms are easy to recognize once you know to look for them:

• Remote controls do not open the gate.
• Keypads stop working.
• Intercoms lose power.
• App control stops responding.
• Wi-Fi or cellular controllers may go offline.
• Exit loops may not trigger the gate.
• Safety loops may not function.
• Card readers and RFID readers may lose power.
• Maglocks or electric strikes may change state depending on how they are wired.
• The gate may stay open, stay closed, or stop wherever it happened to be when the power failed.

If the operator has working battery backup, it keeps running for a limited number of cycles and, for a while, you may not notice any difference at all. Some systems are programmed to fail open, meaning the gate opens on power loss or before the battery runs down, which favors access over security. Others are set to fail secure, holding closed and leaning on battery, an override, or the manual release, which favors security over access. And in the most basic case, the motor has no power but the manual release still lets you disconnect it and move the gate by hand.

Those are the surface outcomes, and they are the ones most people picture when they imagine an outage. The deeper problem is the one they miss.

The Core Problem

The Real Problem: The Whole System Loses Power, Not Just the Motor

A gate is not a motor with a remote. It is a chain of devices that all have to be awake at the same time for the gate to do its job, and every link in that chain runs on electricity. The failure shows up like this. A homeowner tells us, with complete confidence, that their gate has battery backup. Then the power goes out, they pull up to the keypad, and nothing happens. The operator was ready the whole time. The problem was that the open command never reached it, because something upstream was dark.

Battery backup on the operator is not battery backup on the system.

Walk the chain and the risk becomes clear. The keypad needs power. So does the intercom, whether it is a video unit like a DoorBird, a cellular entry system like a CellGate Watchman, a LiftMaster CAPXL or CAPXS, a DoorKing telephone entry panel, or a BFT unit. All of them go silent without it. The router, the Wi-Fi bridge, the PoE switch, and the modem behind those devices need power too, and when they lose it, app control and remote entry stop working even if the gate itself is fine. The loop detectors that open the gate for a departing car need power, which means an exit loop can fail to open a battery-powered gate, a genuinely dangerous surprise if you are trying to leave during an evacuation. The locks are their own trap: an electric gate lock or strike that needs power to release will physically hold the gate shut, so a fully charged, battery-backed operator strains against a lock it cannot open and the gate never moves. And the safety devices, the photo eyes and edges that stop the gate from closing on a car or a person, must stay powered as well, because a faulted safety device can stop the operator from running at all. Bypassing those to force the gate open during an outage is exactly the wrong move and puts people at risk.

None of these are exotic add-ons. They are the ordinary parts of a modern gate, and any one of them, left on grid power while the operator sits on a battery, breaks the whole system. That is the real problem an outage exposes, and it points directly at the solution: outage readiness means making the entire gate system power-independent, not just the piece that moves.

The Fix

The Primary Fix: Whole-System Battery Backup

The core solution is battery backup, applied to the whole system rather than the motor alone. On a modern DC operator, the motor runs directly off a 12-volt or 24-volt battery kept charged while the grid is up, so during an outage the gate behaves normally, and the remotes, keypad, and powered relays keep working right along with it.

The number that matters is cycles, not hours, and it swings widely with conditions. Gate weight and length, battery size, age, and charge level, wind load, the condition of the hinges, rollers, and track, mechanical drag, accessory draw, temperature, whether it is a single or dual gate, and how many times you cycle it during the outage all move that figure. To put real numbers on it, LiftMaster's residential RSW12 swing operator is rated around 147 standby cycles on a single 7Ah battery, which works out to roughly 63 days of standby, and that scales to about 354 cycles with two 7Ah batteries and as high as 877 with a 33Ah battery. DoorKing's 6524 and 9024 operators deliver roughly 40 cycles on their standard 7.2Ah batteries and up to about 150 with the larger 18Ah upgrade on a typical 16-foot, 1,000-pound gate. As a general rule of thumb, integrated backups tend to land somewhere between 50 and 200 cycles, enough for guests to leave and emergency vehicles to get in during a several-hour outage, while a standalone UPS built around a larger battery bank can carry a gate anywhere from a few hours up to 24 or 48. A light residential gate can coast through a long outage. A heavy iron slider on worn rollers can flatten the same battery in an afternoon.

Modern DC operators from LiftMaster, All-O-Matic, Viking, Nice/HySecurity, Apollo, FAAC, BFT, DoorKing, Mighty Mule/GTO, USAutomatic, Ramset, and Eagle may include or support battery backup, but the actual behavior depends on the specific model and how it was installed. That caveat is not a hedge, it is the point: two homes with the same brand on the gate can behave completely differently in an outage depending on what was wired in.

Because the real problem is the whole system, the backup has to cover the whole system. Whether you get integrated backup at all depends on the operator: modern DC units have it built in, while older AC operators need a retrofit, either a kit that adds a small secondary DC motor and controller to open the gate once and hold it open until power returns, or a full inverter that converts battery power to the 110 volts an AC motor expects. From there the same logic extends to the access control and network gear, which belong on protected power too, whether through a UPS sized for the intercom, router, and PoE switch, or an inverter system like DoorKing's 1000 and 2000 series where an entire multi-tenant access system has to stay online. One professional habit is worth adopting for long outages: set the gate to open and hold open once it is running on battery, which conserves charge and guarantees access when you need it most.

The Fix

Solar, Configuration, and the Manual Release

For long driveways, rural parcels, and hillside gates where trenching power is expensive, solar is a strong addition, as long as it is understood correctly. Solar does not run the gate directly. The panel charges the batteries, and the batteries run the gate. Gate loads are modest, since the motor only draws for a few seconds per cycle and the average draw sits somewhere around 10 to 50 watts, so even a small 10 to 30 watt panel can keep a light residential gate charged. In this region the output still has to survive coastal fog, tree cover, north-facing installs, and short winter days, so the panel and battery have to be sized with margin, and lithium iron phosphate (LiFePO4) batteries are increasingly used outdoors for their longer life and better tolerance of temperature swings. The upside during an outage is real, because a solar system keeps topping up the battery through a multi-day shutoff whenever the sun is out. What solar will not do is make a gate independent forever, and a small panel feeding a heavy gate plus a video intercom, a cellular router, and a maglock will fall behind.

The fail-open versus fail-secure choice deserves a deliberate decision rather than whatever the installer happened to leave in the menu. Fail-open suits fire lanes, HOA and apartment entrances, and high-traffic sites where getting people and fire apparatus through matters most. Fail-secure suits private estates and security-sensitive properties. The right setting follows fire requirements, emergency access, how much security the site needs, traffic volume, and local code, and wherever the gate blocks a required fire route, the fire authority's rules decide the answer.

The manual release is the last-resort fix, and every operator listed to the UL 325 safety standard has one. What matters is knowing where it is and which key opens it, how to disengage the motor and how to re-engage it after power returns, and never forcing the gate against an operator that is still engaged. One caution ties it back to maintenance: the release only helps if the gate is kept in good enough shape to actually move by hand once the motor is disconnected.

PG&E's Own Guidance, Put to Work

PG&E's PSPS page gives clear advice, and most of it maps straight onto your gate.

Start with alerts. If you are a PG&E account holder you are already enrolled, but it is worth confirming your contact details are current at pge.com/myinfo, and PG&E is honest about a catch that changes how you should prepare: because forecasts shift, the first alert may not arrive until the same day your power is shut off. That is precisely why the gate has to be ready in advance rather than the morning of. PG&E also offers Address Alerts for other properties that matter to you, a parent's home, a rental, a second gate across town, and Medical Baseline or Vulnerable Customer status for anyone in the household who depends on power for health and safety. There is a seven-day PSPS forecast you can check yourself, and alerts are available in English plus fifteen other languages and American Sign Language, including Russian, which is worth knowing for our Russian-speaking clients.

One more piece of PG&E guidance connects directly to the gate. The utility recommends charging your electric vehicle fully before an outage, which is sound advice, with an obvious corollary once you own an automatic gate: a fully charged EV does you no good if an unpowered, un-backed-up gate traps it behind the property. For the details of what to expect, PG&E's "Your Guide to Public Safety Power Shutoffs" and its PSPS fact sheet are the authoritative sources, and PG&E's guide is where the common "plan to be self-sufficient for several days" advice comes from.

The Fix

What Backup Costs and How to Keep It Working

Outage resilience is one of the more affordable upgrades on a gate, and knowing the rough numbers helps you weigh it against the cost of being stranded. Recent pricing in the Bay Area lands in these ranges:

• Replacement backup battery: a generic 12V 7Ah sealed lead-acid battery runs about $20 to $40, and a genuine LiftMaster MBAT pack is around $38. A DoorKing 18Ah battery is roughly $147 to $167.
• Battery-backup controllers and add-on kits: a LiftMaster DC2000 battery-backup controller runs roughly $556 to $635, though prices vary widely between retailers, and a full add-on kit installed by a professional generally lands between $200 and $500 including labor, with gate labor often around $80 per hour.
• Solar add-ons: entry-level panel kits run from about $119 for a small 10-watt Ghost Controls panel to around $222 for a 30-watt Mighty Mule panel, and a factory DoorKing solar kit that pairs a 10-watt panel with two 18Ah batteries is roughly $549.

Maintenance is what keeps any of this working when it counts. Sealed lead-acid batteries hold up for about three to five years before their capacity degrades, while lithium packs last closer to eight to twelve. Test the backup at least twice a year rather than trusting a status light, and replace batteries that have fallen off: a 24-volt LiftMaster pack dropping below 20 volts, or a 12-volt battery below 10, is done. Watch for low-battery warning lights, beeps, or error codes, such as LiftMaster's Code 41 or 42, and keep in mind that Bay Area heat and outdoor temperature swings shorten battery life, so a battery in an exposed enclosure may need replacing sooner than the label suggests.

Preparation

PG&E's Own Guidance, Put to Work

PG&E's PSPS page gives clear advice, and most of it maps straight onto your gate.

Start with alerts. PG&E aims to send a 48-hour and a 24-hour heads-up, an alert just before the shutoff, and updates during the event, all by automated phone call, text, and email. If you are a PG&E account holder you are already enrolled, but it is worth confirming your contact details are current at pge.com/myinfo, and anyone who is not the account holder, a tenant, a family member, a property manager, can sign up for Address Alerts by texting "ENROLL" to 97633 or calling 1-866-743-6589. PG&E is also honest about a catch that changes how you should prepare: because forecasts shift, the first alert may not arrive until the same day your power is shut off, and an EPSS fast-trip outage gives no advance warning at all. That is precisely why the gate has to be ready in advance rather than the morning of. PG&E also offers Address Alerts for other properties that matter to you, a parent's home, a rental, a second gate across town, and Medical Baseline or Vulnerable Customer status for anyone in the household who depends on power for health and safety. There is a seven-day PSPS forecast you can check yourself, and alerts are available in English plus fifteen other languages and American Sign Language, including Russian, which is worth knowing for our Russian-speaking clients.

One more piece of PG&E guidance connects directly to the gate. The utility recommends charging your electric vehicle fully before an outage, which is sound advice, with an obvious corollary once you own an automatic gate: a fully charged EV does you no good if an unpowered, un-backed-up gate traps it behind the property. For the details of what to expect, PG&E's "Your Guide to Public Safety Power Shutoffs" and its PSPS fact sheet are the authoritative sources, and PG&E's guide is where the common "plan to be self-sufficient for several days" advice comes from.

Code & Access

Fire Department Access and Knox Key Switches

Wherever a gate blocks a required fire apparatus road, a shared driveway serving a fire route, or an HOA or apartment entrance, the local fire authority may require an approved way in during an emergency. That can mean a Knox key switch or Knox box, a fire department key switch, a siren or strobe sensor, a Click-to-Enter receiver, an emergency keypad, mandated battery backup, fail-open programming, or an approved manual release.

The backbone is the California Fire Code. Section 503.6 requires security gates across fire access roads to have an approved means of emergency operation that is kept working at all times, requires electric operators to be listed to UL 325, and requires automatic gates to be built and installed to the ASTM F2200 standard. Many local amendments go further and add an emergency key switch along with a requirement for battery backup or a manual disconnect. In Santa Clara County, the county fire department and city departments such as San Jose and Santa Clara work with the Knox Company, and the specific requirements are set by your local fire code official.

It is worth being precise here, because overstating it helps no one: not every private residential gate needs a Knox switch. What is true is that any gate affecting required emergency access should be reviewed, and the local fire authority has the final word on what it needs.

What To Do

The Pre-Season Test Checklist

The single strongest thing a homeowner can do is move all of the discovery to a calm day. Before wildfire season, or ahead of a forecast shutoff, test the whole system rather than assuming any part of it:

• Battery backup under real load, not just by confirming a green light is on.
• Manual release, including how to re-engage the operator afterward.
• Gate movement by hand, along with the hinges, rollers, V-track, chain, guides, stops, and brackets that let it move.
• Access control: remotes, keypad, and intercom, whether that is a DoorBird, CellGate, CAPXL, or DoorKing panel.
• Lock behavior: confirm any maglock, electric strike, or electric gate lock will release on backup power.
• Loops: exit, reverse, and shadow loops, and confirm their detectors are backed up.
• Safety devices: photo eyes and edges functioning correctly.
• Fire access: the Knox switch or emergency override, where your property requires one.

Alongside the tests, identify your operator brand and model, confirm whether the gate is set to fail open or fail secure, back up the router, modem, or cellular gear if you rely on it, update your PG&E alert information, and decide in advance whether you want the gate left open during an extended outage. For HOAs and commercial sites, put that plan in writing so it does not live only in one person's head.

What To Do

During and After the Outage

If the gate is running on battery, treat every cycle as a withdrawal from a limited account. Open it only when you need to, keep the path clear, watch for slow movement or a low-battery warning, and on a long outage consider leaving it open if security allows. If the gate does not respond, do not force it. Work out which part failed, the operator, the keypad, the intercom, the receiver, a loop detector, a lock, the router, or the battery, then use the manual release if you can do it safely and re-secure the gate afterward. For HOAs and commercial properties, notify residents or tenants, follow the written plan, and keep fire access clear.

When power returns, clear the gate path, reverse the manual release to re-engage the operator, restore power, and give the control board a moment to reset. Run one full open-and-close cycle and watch it reach both ends cleanly, then retest the access control, loops, safety devices, and locks, and check for low-battery warnings or lost programming. If the gate moved slowly on battery, stopped halfway, failed to run on backup, was hard to release or push, came off track, threw battery faults, or lost its access control settings, that is the system telling you it was closer to the edge than you want, and it is worth a professional look.

Summary

The Bottom Line

A PG&E outage should never be the first time you learn how your gate works without power. The properties that sail through a shutoff have the same short list in common: whole-system battery backup rather than a backed-up motor alone, a tested manual release, a gate that moves smoothly by hand, backed-up access control, locks configured on purpose, working loops and safety devices, fire department access where it is required, a written plan, and regular maintenance. None of it is exotic. It just has to be handled before the wind picks up rather than after.

Questions

Frequently Asked Questions

In Short

What Happens to Your Gate During a Power Outage

When PG&E shuts off power in a PSPS or an unannounced fast-trip outage, your automatic gate loses its normal power source, and what happens next comes down to your equipment. With no working backup, the motor stops and the gate sits wherever it was, usually closed, while the remote, keypad, intercom, and app go dark. With battery backup on a modern DC operator, the gate keeps opening and closing for a limited number of cycles. Depending on how it was programmed, it may also fail open for access or fail secure for security, and if all else fails, the manual release lets you disconnect the motor and move the gate by hand.

The catch most owners miss is that a backed-up motor is not a backed-up system. The keypad, intercom, cellular controller, router, loop detectors, locks, and safety devices all need their own power, and any one of them left on the grid can leave the gate dead even when the operator is fine. So the real answer to the question is this: your gate works during a PG&E outage only if the whole system was made power-independent ahead of time, and the way to be sure is to test the battery backup, manual release, gate movement, access control, locks, loops, safety devices, and fire access before wildfire season, not during the outage.

Book an Inspection

Make Your Gate Outage-Ready with Bay Area Lions Gate

Your gate does not have to be a question mark the next time the wind picks up. Bay Area Lions Gate inspects the whole system, not just the motor, and tells you plainly where you stand: whether your battery backup still holds a charge, whether the manual release works and everyone can find it, whether the intercom, keypad, loops, locks, and safety devices keep working when the grid goes down, and whether your gate meets fire access requirements for your street. Where something falls short, we fix it. We replace tired backup batteries, add battery or solar backup to operators that never had it, bring older AC systems up to a power-independent DC setup, back up the access control and network gear the gate actually depends on, and set fail-open or fail-secure behavior to match how you use the property.

Do it before wildfire season, not during the outage. Book a gate power-outage readiness inspection with Bay Area Lions Gate today.

One inspection now means that when PG&E cuts the power, your gate keeps doing its job, your family gets in and out, and emergency crews are never left waiting at a dead gate.