Colleyville, Texas
What home battery backup costs in Colleyville.
A whole-home battery system in Colleyville — one sized to carry central air conditioning, not just a refrigerator and a few lamps — typically runs about $25,000–$40,000 or more installed, using two to three batteries totalling roughly 27–40 kWh. An essentials-only system built around a single battery is closer to $12,000–$15,000. Where a home lands inside that span comes down to four things: how much of the house you want running, how much air conditioning has to start on battery, whether your main electrical panel can accept the equipment as it stands, and how far the batteries sit from that panel. These are planning ranges rather than a quote — the fixed written price that follows a consultation replaces them with one number.
What the installed price actually includes.
A battery quote is not a hardware receipt. Most of what you buy is a commissioned electrical system, and identical batteries carry very different installed prices depending on the work around them.
- The batteries and their electronics. The cabinets themselves, plus the inverter and the automatic gateway that separates your home from the grid and re-energizes it from storage the moment the grid drops.
- The electrical work. A backup panel or whole-panel gateway, conductors and conduit, breaker changes, disconnects and surge protection, and grounding brought to current code. This is what varies most between homes.
- Mounting and siting. A wall or pad rated for the equipment, in a location that meets clearance and ventilation requirements and keeps the batteries out of the worst of a Texas summer.
- Permit and interconnection handling. A grid-tied battery here needs a City of Colleyville electrical or building permit, an inspection, and an interconnection agreement with Oncor. Your installer prepares and files all of it — the detail is on the permits and Oncor interconnection page.
- Commissioning and handover. Setting how much reserve the system holds back, testing it against a deliberate outage before anyone leaves, and configuring the monitoring app with you.
Equipment is the largest single line on most quotes, but it is the electrical work that explains why two Colleyville homes with the same batteries are quoted thousands of dollars apart. A number that looks unusually low has usually had one of the middle items removed from it.
Why Colleyville homes sit toward the upper end.
Colleyville’s housing stock changes the arithmetic. Homes here are frequently 3,500 to 6,000-plus square feet and often run two separate air-conditioning systems, so a backup design has to satisfy two different requirements at once.
The first is energy — the kilowatt-hours the house draws over the length of the outage. The second is power: a compressor pulls several times its running current in the instant it starts, and the system has to absorb that surge without tripping. A single battery often meets one requirement for a large home and not the other, particularly when two compressors can call at the same time. That is why most true whole-home projects here need two to three batteries, and why the low end of the range belongs to smaller homes with single-system cooling.
Cost by scope: essentials or the whole house.
The largest decision you make is not which battery to buy. It is how much of the house should behave normally during an outage.
| What you are comparing | Essentials only | Whole home, air conditioning included |
|---|---|---|
| Batteries | One | Two to three |
| Approximate capacity | A single battery | About 27–40 kWh |
| What it carries | Refrigeration, internet, selected lighting and outlet circuits, garage door, and a small amount of comfort load | The panel as a whole, including one or more central air-conditioning systems, kitchen, laundry, and well or pool equipment where present |
| Planning range, installed | About $12,000–$15,000 | About $25,000–$40,000+ |
| Suits a homeowner who | Wants the house safe and livable through a short outage | Wants the outage to be something the household never really notices |
What moves the number for your specific home.
The age and capacity of your main panel.
This is the caveat we flag most often. A panel that is old, fully populated, or rated too low for the new equipment has to be upgraded or worked around before a battery can be tied in, which adds both equipment and additional permitted work. Two otherwise identical homes can sit at opposite ends of the whole-home range on this point alone.
How much air conditioning has to start on battery.
Compressor tonnage and the number of systems drive the power side of the design. Sometimes the cheaper answer is not another battery: soft-start hardware, or load management that stops two compressors starting together, can keep a home inside a smaller system. A good design tests that before selling you capacity.
Which battery platform is specified.
Three platforms are commonly installed in North Texas — Tesla Powerwall 3, FranklinWH aPower and Enphase IQ Battery — and they price differently because they are built differently. Some arrive as one larger cabinet, others stack as smaller modules, and their continuous output ratings differ, which matters precisely when a compressor starts. We do not claim a particular brand for your project; your installer specifies the platform that fits your measured loads and explains why in writing.
Where the equipment goes, and how far that is from the panel.
The least expensive install is a garage wall a short run from the main panel. Costs rise with distance and difficulty: an exterior run along the side of the house, a detached garage, a finished wall that has to be opened and closed again, or a location needing trenching all add conduit, conductors and hours.
Why a 2026 quote carries no federal tax credit.
The federal residential clean energy credit that applied to home battery storage ended on December 31, 2025. Systems installed in 2026 are quoted without it, and every figure on this page is a gross installed price with nothing assumed back. If a program you qualify for applies when you sign, it belongs on the quote as its own line rather than inside a headline estimate. We would rather show you the real number.
What a written fixed-price quote should contain.
You receive one quote, from one vetted installer, because your details go to a single installer and are never resold. The trade-off is that the document has to stand on its own, so insist that it is specific:
- The battery platform, the number of units, and usable capacity in kilowatt-hours.
- The circuits being backed up, named individually rather than described as “essentials”.
- Whether a main-panel upgrade or a backup panel is included, and what happens to the price if the inspection reveals something a site survey could not see.
- Permit, inspection and Oncor interconnection work stated as included, with any city or utility charges itemized separately.
- Battery, inverter and workmanship warranties, each stated in its own right.
- Commissioning, including a tested outage before handover.
- One price, signed, valid for a stated period.
Vagueness on any of those is where a change order comes from later. And if you are still choosing between storage and a standby generator, read the battery versus generator comparison before pricing either — the answer depends on the kind of outage you are planning for.
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Find out what your home actually needs.
A private consultation is a short conversation, an honest read of your panel and your cooling load, and a fixed written price. One local specialist, and only one.
Request a private consultationColleyville battery cost questions.
Does the price include the permit and the Oncor interconnection?
Yes. A grid-tied battery here needs a City of Colleyville electrical or building permit, an inspection, and an interconnection agreement with Oncor, and your installer prepares and files all of it. That work sits inside the installed price; any city or utility charges should appear as their own line items on the written quote.
Why is the 2026 price higher than the figures I saw last year?
Much of what is still online was written while the federal residential clean energy credit applied, and that credit ended on December 31, 2025. Systems installed in 2026 are quoted without it, so an older article showing a net-of-credit figure describes a number that no longer exists. The ranges here are gross installed prices.
Can I start with one battery and add a second later?
Often, yes — but only if it is designed in from the start. Some platforms expand by adding units to the same gateway, and if the conduit, conductors and backup panel are specified for the larger system on day one, the second battery becomes a much smaller job later. Ask for that in writing.
Is a battery cheaper than a standby generator in Colleyville?
The first invoice is only part of it. A battery has no fuel to store, no service contract and no noise, while a standby generator is better suited to very long outages. Because the decision turns on how you expect to lose power rather than on price alone, we cover it separately on the battery versus generator page.