Quick answer: Winter storms still knock out power in North Texas, even when the state grid holds up. Ice weighs down power lines and tree limbs, and repairs slow down on icy roads. A natural gas standby generator is the most dependable way to keep your heat, pipes and refrigerator safe through a multi-day outage. If you already own one, get it serviced before the first freeze. If you don’t, start the quote process now, because permits and gas meter work take time.

Why does North Texas still lose power in winter storms?

Most of us remember February 2021. During Winter Storm Uri, more than 4.5 million people in Texas lost power, some for as long as four days, according to the federal report on the freeze. The state grid came within 4 minutes and 37 seconds of a collapse that could have kept it down for weeks.

The grid has been better prepared since. During Winter Storm Fern in January 2026, ERCOT didn’t have to issue an emergency alert or cut power statewide. But its own post-event report noted that “some localized outages did occur due to ice accumulation on power lines.”

That’s the outage most homeowners in Frisco, Prosper, and McKinney should plan for. Freezing rain coats a tree limb, the limb snaps onto a line, and your street goes dark while crews work through a long repair list on slick roads. Underground lines in newer neighborhoods help, but the overhead lines feeding those neighborhoods can still go down.

And it’s not only winter. During the May 2024 derecho, Oncor reported more than 650,000 customer outages, and restoration stretched over several days. So the useful question is a practical one: can your house ride out two or three days without power in freezing weather?

Why is a standby generator better than a portable one in winter?

A portable generator can keep a fridge and a space heater going. That’s useful. Winter is where portables show their limits, though.

You have to refuel a portable every few hours, which means storing gasoline and driving icy roads to find more when stations lose power too. You start it by hand, in the cold, often at night. And it has to run well away from the house, because carbon monoxide is the real danger. Carbon monoxide poisoning caused about 8% of the 246 deaths the state tied to Uri, according to the final count reported by the Texas Tribune. The CDC says to keep portable generators at least 20 feet from windows, doors and vents, and never run one in a garage, even with the door open.

A natural gas standby generator avoids all of that. It sits outside on a pad at a code-required distance from your home, connects to your gas line so there’s nothing to refuel, and starts on its own within seconds of an outage. If you’re out of town when the ice hits, it still comes on.

Can natural gas run out during a Texas winter storm?

It’s a fair question after 2021, when frozen wells and equipment cut natural gas production and power plants struggled to get fuel.

Natural gas isn’t perfect. During Uri, and again during the December 2022 cold snap, Atmos Energy asked customers to turn thermostats down and conserve gas while demand peaked, and worked to raise pressure in parts of its system.

Still, we recommend natural gas for most standby generators in Collin and Denton counties. There’s no tank to run dry and no fuel to go buy on icy roads. If Atmos asks customers to conserve during an extreme event, follow it: keep the thermostat modest, skip the gas fireplace, and let your load management do its job. Your generator only uses what your home is actually drawing.

Already have a generator? Your fall checklist

Most winter generator failures start with something small that nobody has checked since spring. Here’s what we look at on a fall service visit, plus a few things you can check yourself.

  1. Schedule your annual maintenance now. We recommend service at least once a year or every 150 hours of run time, whichever comes first. Fall is the right time, before the first freeze and before every service company in DFW gets booked up.
  2. Test or replace the battery. A weak battery is the most common reason a standby generator won’t start, and cold weather makes a weak battery weaker. Many need replacing every three years or so.
  3. Change the oil and filters. Fresh oil of the right grade matters more on a cold start than people think.
  4. Watch the next exercise cycle. Your generator should run itself for a few minutes on a set schedule. If it has stopped exercising, something is wrong.
  5. Check the status lights or the app. If a warning light has been on since summer, call us now rather than in the middle of a storm.
  6. Clear around the enclosure. Leaves, mulch, firewood and overgrown shrubs block airflow. Mice and wasps like a quiet generator enclosure too.
  7. Make sure the gas valve is open. It sounds silly. After plumbing or landscaping work, it’s one of the most common reasons behind a “my generator won’t start” call.
  8. Know what your load management will shed. If your system cycles large appliances, know which ones, so you’re not surprised when the second AC or the pool heater waits its turn.

Cornerstone’s generator maintenance service covers oil and filter changes, battery and fuel system testing, load simulation, firmware updates and a written status report. Book a single visit, or put your generator on a plan so you never have to remember.

Does a generator need a cold weather kit in North Texas?

For most homes here it’s optional. Cold weather kits (battery warmers and oil heaters) matter most where deep cold lasts for weeks. North Texas gets hard cold in short bursts, and a well-maintained generator with a healthy battery and the right oil starts fine in a typical winter.

Typical isn’t guaranteed, though. DFW dropped to 2 below zero during Uri, tying the second-coldest reading on record. If your generator sits in a spot that takes the full north wind, or you want extra margin, a battery warmer is an inexpensive add-on, and we’ll tell you whether it’s worth it for your setup.

Don’t have a generator yet? Here’s the realistic timeline

This is the part most people don’t plan for. You can’t buy a standby generator on Monday when the forecast turns ugly and have it running by Wednesday.

Here’s what happens between your first call and a working system:

  1. Free consultation and load calculation. We walk the property, check your gas meter and panel, and size the generator.
  2. Written proposal. You get a line-by-line quote and approve it.
  3. Permits and HOA approval. We file the permits. If you have an HOA, its review runs alongside.
  4. Gas meter upgrade, if needed. Atmos Energy schedules this on its own timeline.
  5. Installation. Most installs take 4 to 7 days, depending on site conditions and permitting.
  6. Inspection, startup and walkthrough. Once the work passes inspection, we start the generator, test it under load and show you how it works.

HOA review and gas meter scheduling can add time before work starts, so plan ahead. If you want a generator in place before January, call in October or early November. Our whole-house generator cost guide will give you a sense of budget before we meet, and our Kohler vs. Generac comparison covers the brand question.

What should a generator power during an ice storm?

Start with the things that cause damage or danger when they stop:

  • Your heating system, since even a gas furnace needs electricity for its blower and controls (heat pumps draw much more, which changes sizing)
  • Anything that protects your water lines, like heat, a sump pump or a recirculating water heater
  • Refrigerators, freezers and any medical equipment
  • Wi-Fi, phone chargers and your security system

A correctly sized whole-house standby generator covers all of that and more. If budget is tight, a smaller generator with load management can still keep the essentials running. We have that conversation at every consultation, and we size to your load.

Why North Texas homeowners call Cornerstone before winter

We’re a local, family-owned company based in Frisco. We were here for Uri too, as neighbors.

We install Kohler standby generators, pull every permit, and one or both of our owners are on site for every installation. Our master-licensed tradesmen have decades of experience, and our maintenance visits keep the generators we install ready for the next storm. We serve Frisco, Prosper, McKinney, Celina, Lucas, Plano, Allen, Little Elm, Melissa and Dallas.

Get ready before the first freeze. Call Cornerstone Power Solutions at (972) 246-8216 or book a free consultation. Already have a generator? Ask about a pre-winter maintenance visit.