What Happens During a Power Outage? Solar vs. Solar + Battery on the Central Coast

Power outages can happen even in sunny California. For homeowners on California’s Central Coast and throughout PG&E territory, outages can be caused by storms, equipment failures, extreme heat, wildfire conditions, Public Safety Power Shutoffs (PSPS), and rotating or ​“rolling” blackouts. These outages can range from a brief disruption to extended periods without electricity, making backup power an increasingly important consideration for California homeowners.

But what happens inside your home when the grid goes down depends on how your home is powered.

If you rely entirely on the electric grid, you lose electricity until your utility restores service. If you have solar panels, you might assume California’s sunshine will keep your home powered, but that’s usually not how a grid-connected solar system works.

Pair solar with home battery storage, however, and your home has another source of electricity when the grid isn’t available.

Here’s what Central Coast homeowners should know about solar panels, battery backup, and power outages.

No Solar or Battery: Your Home Loses Power

If your Central Coast home relies entirely on the electric grid, a utility outage means your home loses its source of electricity.

Lights turn off. Outlets stop working. Refrigerators, Wi-Fi, appliances, and other electrical equipment can no longer operate normally. Your home remains without power until the utility restores electricity.

Without another source of energy at your property, you’re completely dependent on the grid coming back online.

California homeowners have seen just how disruptive extended outages can become. During major PG&E Public Safety Power Shutoff events in October 2019, electricity was intentionally shut off across large portions of Northern California to reduce wildfire risk. One series of shutoffs impacted approximately 941,000 customers across 38 counties, and some residents who lost power on October 26 did not have service restored for six days.

California can also experience rotating outages, commonly called rolling blackouts, during periods when electricity demand exceeds available supply. These outages are used to help stabilize the grid and prevent a much larger system-wide failure. While rotating outages are typically much shorter than wildfire-related shutoffs, both are reminders that California homeowners cannot always predict when or how long grid power will be unavailable.

Do Solar Panels Work During a Power Outage in California?

This is one of the biggest misconceptions about residential solar.

Most grid-connected solar systems do not continue powering your home during a power outage.

When your solar system detects a grid outage, it typically shuts down automatically through a safety feature known as anti-islanding protection.

This helps protect utility workers who may be repairing electrical infrastructure. If residential solar systems continued sending electricity onto utility lines while crews were working, it could create a serious safety hazard.

So even if your Central Coast home is sitting under bright California sunshine, solar panels alone generally won’t keep your home powered during a grid outage.

Solar + Battery: Backup Power for Your Central Coast Home

Adding home battery storage changes what happens when the California grid goes down.

Whether the outage is caused by severe weather, a PG&E Public Safety Power Shutoff, a rotating blackout, or another grid disruption, a properly configured solar and battery system can disconnect your home from the utility grid and begin using energy stored in your battery.

Instead of being completely dependent on PG&E or another utility to restore electricity, your home has access to its own stored energy.

Depending on your system design and backup priorities, battery storage can help keep important loads operating, including:

How Solar and Batteries Work Together During a California Power Outage

Solar and battery storage work together because one generates energy while the other gives you somewhere to store it.

During daylight hours, your solar panels can generate electricity. That energy can power household loads while available excess solar production can recharge your battery.

When the sun goes down, your home can draw electricity stored in the battery.

Then, when the sun comes up again, solar production can begin and potentially recharge the battery.

This ability can be especially valuable during an extended California power outage or PG&E Public Safety Power Shutoff. Instead of relying solely on a backup energy supply that gradually depletes, solar provides an opportunity to produce additional electricity and recharge your battery while the utility grid remains unavailable.

Be Ready for the Next Central Coast Power Outage

You don’t get to decide when the grid goes down, but you can decide how prepared your home is when it happens.

Photon Brothers designs and installs solar and Tesla Powerwall battery systems on California’s Central Coast, helping homeowners create energy systems designed around their electricity usage and backup priorities.

Whether you’re considering solar and battery storage together or want to add a Tesla Powerwall to an existing solar system, our Central Coast solar and battery team can help you determine the right setup for your home.

Frequently Asked Questions About Solar and Power Outages on the Central Coast