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Battery Storage & Backup Power in Bastrop & Fayette County, TX

Keep the lights, the well pump, and the fridge running through a Texas grid outage. Battery storage pairs with a new solar install, bolts onto a system you already have, or stands on its own without solar at all — sized around which circuits actually need to stay on.

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Quick Check

What's Driving Your Decision?

Start with what actually needs to stay on. If outages are frequent, the real question is whole-home coverage or just the essentials. See Whole-Home Battery Backup and Essential Circuits Backup.

Common request. Most grid-tied systems can have battery storage added without replacing the panels or inverter. See Battery Storage for Existing Solar.

Two paths. Add battery from the start of a new solar install, or get backup power without solar at all. See Battery with New Solar Installation or Backup Without Solar.

This is what most homeowners actually need. A well pump, medical equipment, or a freezer full of food doesn't require whole-home capacity. See Essential Circuits Backup.

Battery storage doesn't require solar. A standalone battery can charge from the grid and discharge during an outage on its own. See Backup Power Without Solar.

Sizing comes from your loads, not a guess. We calculate it from what you actually want to keep running. See Battery Sizing & Load Calculation.

Built specifically for Bastrop & Fayette County
Works with new or existing solar systems
Sized around which circuits matter to you
Before You Decide

Is Battery Storage Right for Your Property?

How long can a battery actually power my house during an outage?
It depends entirely on battery capacity and what's drawing power. A battery sized for a few essential circuits — a fridge, some lighting, a well pump — can often run for a day or more between charges. A battery trying to cover a whole house with AC running will drain much faster. This is why sizing starts with a real load calculation instead of a flat "hours of backup" number that doesn't account for what's actually plugged in.
Can I add battery storage to solar panels I already have?
In most cases, yes. Most grid-tied inverters and panel setups can have a battery added without replacing the original equipment, though the exact compatibility depends on your specific inverter. We check this during the assessment rather than assuming every existing system can take a battery without modification.
Do I need solar panels to get battery backup, or can I get a battery without solar?
You can get a battery without solar. A standalone battery charges from the grid during normal operation and discharges to your home during an outage, the same way a generator would kick in — just silently and without fuel. It won't lower your electric bill the way a solar-charged battery does, since it's not generating anything, but it's a real option if backup power is the only goal.
What's the difference between whole-home backup and essential-circuits backup?
Whole-home backup keeps everything in the house running during an outage, including AC and large appliances — it takes a bigger battery bank and usually a subpanel or transfer switch upgrade. Essential-circuits backup uses a dedicated panel to power just what you choose ahead of time: a well pump, refrigerator, a few lights, medical equipment. It's the more common choice because it covers what actually matters at a fraction of the battery capacity.
How many batteries do I need for my home?
It comes down to what you want covered and for how long, not square footage. A single battery unit is often enough for essential circuits; whole-home coverage, especially with AC included, usually needs more than one. We calculate this from your actual loads during the assessment rather than a generic recommendation.
On This Page

Jump to a Specific Battery Storage Option

Battery Storage with a New Solar Installation

The most efficient time to add battery storage is when a new solar system is being designed in the first place — the inverter, wiring, and panel layout can all be planned around it from day one instead of retrofitted later. If you're getting solar installed and outages are a real concern for your property, telling us upfront lets us size the whole system, not just the battery, around that goal. See Residential Solar Panel Installation for the panel side of a new system.

Battery Storage for Existing Solar Systems

Solar without battery storage still shuts off during an outage for safety, even with the sun out — that's how grid-tied systems work by design. Adding a battery to a system you already have is one of the most common upgrade requests we get. Compatibility depends on your specific inverter and panel setup, which we check during an on-site assessment before quoting anything, rather than assuming every existing system is a drop-in fit.

Whole-Home Battery Backup

Whole-home backup keeps everything in the house running during an outage — AC, appliances, everything you'd normally use on a regular day. It takes a larger battery bank than partial backup, and often a subpanel or automatic transfer switch to manage the handoff between grid and battery power. It's the right call for households with medical equipment that can't lose power at all, or anyone unwilling to choose which circuits matter most ahead of time — but it costs more than covering just the essentials, and that tradeoff is worth being upfront about before committing to it.

Essential Circuits & Partial Backup

Most homeowners don't actually need whole-home backup — they need the fridge, a well pump, some lighting, and maybe a medical device to keep running. A dedicated essential-loads subpanel routes just those circuits to the battery during an outage, which means a much smaller (and less expensive) battery bank can cover what genuinely matters. This is the most common setup we install, and it's worth deciding on your essential-circuits list before sizing anything, since that list is what the whole system gets built around.

Backup Power Without Solar

A battery doesn't require solar panels to work as backup power. A standalone battery charges from the grid during normal operation, then discharges to your home automatically during an outage — similar to how a generator kicks in, but silent, with no fuel to store or run out of mid-outage (within the battery's capacity). It won't reduce your electric bill the way a solar-paired battery does, since nothing is generating power, but it's a legitimate option for a property where backup power is the only goal, not lower utility bills.

Battery Sizing & Load Calculation

Battery sizing starts with a real load calculation: what you want to keep running, for how long, and whether that includes big draws like AC or well pumps. Undersizing means the battery runs out mid-outage when it matters most; oversizing means paying for capacity that never gets used. We calculate this from your actual circuits and priorities during the on-site assessment rather than selling a standard package and hoping it fits.

Battery Monitoring & App Control

Most battery systems come with an app that shows charge level, current power draw, and which circuits are pulling from the battery versus the grid at any given moment. That visibility matters most during an actual outage, when knowing how much runtime is left changes what you decide to run. We walk through setup and monitoring as part of every install so it's not something you're figuring out for the first time when the power's already out.

A Real Comparison

Battery Storage vs. a Generator

Battery + Solar

Silent, no fuel, and it also lowers your electric bill day-to-day by using stored solar power in the evening. Runtime during an extended outage depends on both battery capacity and whether the sun comes back out to recharge it.

Battery Without Solar

Silent and no fuel, but it only recharges from the grid — so once the grid's down and the battery's depleted, it's out until the grid comes back. Doesn't lower your bill, since nothing is generating power.

Generator

Can run indefinitely as long as fuel keeps coming, which matters for a multi-day outage — but it's loud, needs fuel stored or delivered, and needs regular maintenance to start reliably when you actually need it.

Where We Install

Serving Homes Across Bastrop & Fayette County

Battery storage and backup power installation throughout Bastrop and Fayette County, whether or not solar is part of the plan.

More Questions

Battery Storage & Backup Power FAQ

Does Texas's solar property tax exemption cover battery storage too?
It depends on how the battery is set up. Texas Tax Code Section 11.27 exempts "solar energy devices," defined to include equipment that stores energy that same equipment converted from sunlight — so a battery paired with solar panels is very likely covered. A standalone battery with no solar panels attached, charging only from the grid, doesn't convert any solar energy, so it likely falls outside that definition, though there's no published Comptroller ruling addressing that exact scenario directly. If a standalone battery is part of your plan, it's worth confirming with your county appraisal district before assuming it's exempt.
Is there still a federal tax credit for battery storage in 2026?
No. The federal Residential Clean Energy Credit covered battery storage the same way it covered solar panels, and it was terminated for any system placed in service after December 31, 2025, with no separate carve-out for storage versus solar. Marketing that still references a 30% federal credit for battery storage in 2026 is outdated.
What happens when the battery runs out during a long outage?
If it's paired with solar, the battery recharges during daylight hours as long as the sun's out, which can stretch a battery through a multi-day outage depending on capacity and usage. A standalone battery with no solar only recharges once the grid comes back, so once it's depleted during an outage, backup power stops until then.
Can a battery charge from the grid, or only from solar?
Both, depending on the setup. A battery paired with solar typically prioritizes charging from panels first and can also top off from the grid if needed. A standalone battery with no solar only ever charges from the grid.
How long do home batteries actually last before needing replacement?
Battery lifespan is measured in charge cycles rather than just years, and most residential batteries are warrantied for somewhere around 10 years or a set number of cycles, whichever comes first. How hard the battery is used — daily cycling for bill savings versus occasional backup only — affects how it wears over that period.
Can I have both a battery and a generator?
Yes, and it's a reasonable setup for a property that wants both quiet, immediate backup for shorter outages and a fuel-based fallback for extended ones. The two systems need to be integrated correctly so they don't conflict with each other, which we plan for during design if a generator's already on the property or being added alongside the battery.

Ready to Talk About Backup Power?

Get a free, no-pressure assessment for your home in Bastrop or Fayette County — with or without existing solar.

Call (512) 866-4970