Colleyville, Texas

Home battery or standby generator for a Colleyville home.

It depends on how long your power actually goes out. For the short outages Northeast Tarrant County sees most, a home battery is the better instrument: it carries the house instantly, in silence, with no fuel to store and no annual service visit. For a genuine multi-day event, a standby generator running on a gas line will outlast any battery that is not being refilled by the sun. Most Colleyville homes meet the first situation far more often than the second, which is why a battery is usually the right everyday answer — but not always.

We should be plain about where we sit. We arrange battery installations, not generators. If, after reading this, a generator is clearly the better answer for your home, we would rather say so here than sell you the wrong system.

How each one behaves when the power goes out.

Startup: instant, versus a short wait

A battery system holds the house up through its inverter, so the handover is effectively instantaneous — clocks do not reset, the internet stays up, and you often learn there was an outage from a neighbor's text. A standby generator has to crank an engine, let it come up to speed, and throw a transfer switch, so the house goes dark for a short interval while the engine starts and the switch transfers. For most households that is a minor inconvenience — it matters mainly if something in the home objects to losing power at all.

Noise, and where the equipment lives

A battery has no moving parts and makes no noise; cabinets are typically mounted on a garage or exterior wall, out of sight. A standby generator is an engine in a weather enclosure on a pad in the yard — audible while it runs and, on Colleyville's quieter streets, sometimes audible from the house next door. Most units also exercise themselves briefly on a schedule while the grid is fine, which is how you know they will start when it is not.

Fuel, refueling and runtime limits

This is where the generator wins, and it is not close. If your home has gas service, a standby generator draws from the line and needs no refueling — it runs as long as the gas keeps flowing and the engine keeps being serviced. On propane or diesel it needs a tank, and refueling is exactly what becomes difficult during the events that cause long outages. A battery has no fuel but it has a ceiling: its stored kilowatt-hours divided by what you are running. Central air conditioning is the largest draw in a Texas summer, which is why whole-home backup in a larger Colleyville home is usually a two-to-three battery question rather than a single cabinet. When the stored energy is gone, a battery without solar waits for the grid.

What each one does that the other cannot.

A battery is the only one of the two that does anything on an ordinary Tuesday. On the right retail electricity plan it can charge when power is cheapest and carry the house at peak, and some grid programs pay homeowners for letting a battery participate — terms change often, so confirm any of that in writing and treat it as a bonus rather than the reason to buy. More importantly, a battery can be paired with rooftop solar, and that pairing changes the arithmetic: panels refill it during daylight, so a one-evening system becomes one that keeps cycling for as long as the outage lasts. Batteries also differ in how much power they can deliver at once, which is what decides whether central AC can start. Tesla Powerwall 3, FranklinWH aPower and Enphase IQ Battery are three platforms commonly installed in North Texas, and they take different approaches to it; your quote should name the one being proposed and say why.

A generator does one thing a battery cannot: it runs indefinitely. It does not care about a state of charge, and it will carry heavy continuous loads — whole-house air conditioning for days, a well pump, a workshop — without anyone doing energy arithmetic in their head. If your real fear is a long event rather than a frequent one, that is the argument, and it is a good one.

Maintenance and lifespan.

A standby generator is an engine, and engines need looking after: oil and filters, a starter battery, and a service visit on a schedule, which many owners cover with a contract. Neglect is the most common generator disappointment — the unit that has sat unserviced for years is the unit that does not start on the night it is needed. A battery has no scheduled service at all; its capacity fades gradually over years of cycling, and its end of life is a unit replacement rather than a repair. Warranties are expressed in years, in energy throughput, or both — ask for the exact terms in writing.

Head to head.

Battery planning ranges are on our Colleyville battery cost page. We do not publish generator prices — we do not sell generators and will not invent a figure. The permit and interconnection steps are explained on the permits and Oncor interconnection page.

Which fits the Northeast Tarrant County outage pattern.

Colleyville sits in Oncor territory on the ERCOT grid, and the outages here are mostly short: heat-stressed equipment on a triple-digit afternoon, wind and lightning in storm season, a line down on a street or two. Power is usually back within hours. A correctly sized battery covers that case completely and invisibly — nobody has to walk outside in the rain to check on it, and no engine wakes the neighbors at two in the morning. Across a decade, that is the outage you will meet again and again.

The other case is real too. The February 2021 freeze took power from parts of North Texas for days, in cold weather with weak winter sun — the exact conditions in which a battery is least able to refill itself and an engine on a gas line is most valuable. A battery still helps materially: it can carry the furnace fan, refrigeration, internet and lighting in stretches, and it can be managed to last. But a battery holding an evening's worth of energy is not the same thing as a machine that runs for three days. If that scenario is what keeps you up at night, and rooftop solar is not an option for your roof, the generator deserves serious consideration. One caveat either way: a gas-fired generator depends on the gas system continuing to deliver at your meter, which is usually dependable but not guaranteed in an extreme statewide event.

When to choose each.

And if you recognized yourself in both columns, the honest answer may be both — a battery for the short outages that actually happen here, a generator for the rare long one. It is two systems to buy, permit and maintain, so raise it at the consultation and we will tell you whether your home warrants it.

Common questions.