Why Whole-Home Generators Matter in Texas
Texas weather is unpredictable. February 2021 saw catastrophic ice storms that left millions without power for days. Summer brings severe thunderstorms with flash flooding, and tornado season can knock out entire neighborhoods in seconds. When the power goes out, so does your heating, cooling, refrigeration, and security. A whole-home generator automatically restores power within seconds—no manual switches, no extension cords, no risk of carbon monoxide from improper portable generators indoors.
Unlike portable units that sit in garages, whole-home standby generators are permanently installed, run on natural gas or propane, and activate automatically. They're code-compliant, increase home resale value, and provide peace of mind knowing your family will have heat, light, and refrigeration during any outage.
What's Involved in Whole-Home Generator Installation
Electrical Survey
We inspect your electrical panel, count your breakers, and estimate your peak load. Most homes with air conditioning peak at 20-25 kilowatts during summer. We calculate usage to recommend a generator that covers essential loads (HVAC, water heater, refrigerator, lights, kitchen outlets) without overspending on excess capacity.
Generator Placement & Fuel Connection
The generator is installed outside on a concrete pad, typically 5-15 feet from the electrical panel and away from windows and doors (to prevent exhaust intake). If using natural gas, we connect to your existing gas line. Propane requires a propane tank installation and requires more frequent refueling. Natural gas is preferable when available since you'll never run out of fuel during extended outages.
Automatic Transfer Switch (ATS) Installation
The ATS is the brain of the system. Installed inside your electrical panel, it continuously monitors utility voltage. When power drops, the ATS waits 2-5 seconds to confirm it's a real outage (not a brief flicker), then sends a signal to start the generator. Once the generator reaches full speed and voltage, the ATS disconnects the utility and connects your home to the generator. The entire transfer takes less than 10 seconds.
Subfeed Panel or Automatic Load Transfer
Modern systems use an ATS for automatic switching, but some larger setups use a subfeed panel that lets you choose which circuits the generator powers. During an outage, you manually (or the ATS automatically) selects which loads to energize. This prevents overload—a 20kW generator can't run your 200A panel's full load, so we prioritize essential circuits: heating, water heater, refrigerator, and living areas.
Permits & Inspections
All generator installations require electrical and gas permits in Texas. We handle all paperwork with Collin County or Denton County, arrange inspections, and ensure the system meets NEC Article 702 (for standby systems) or NEC Article 700 (for emergency systems in critical facilities). The inspection covers electrical safety, gas connections, grounding, and load calculations.
Load Testing & Handoff
After installation, we test the generator under load to ensure it powers your essential circuits correctly. We show you the monthly maintenance schedule (oil checks, load testing) and walk you through what happens during an outage. The system is ready to activate the moment the grid fails.
Portable vs. Whole-Home: Comparing Your Options
| Feature | Portable (5-7kW) | Whole-Home (14-26kW) |
|---|---|---|
| Setup Time | Manual (30+ min) | Automatic (10 sec) |
| Fuel Type | Gasoline (must store) | Natural gas or propane |
| Power Output | 5-7kW (partial) | 14-26kW (full/most loads) |
| Installation | None (portable) | Professional install with permits |
| Typical Cost | $2,000-$3,500 | $5,000-$15,000+ |
| Maintenance | Seasonal storage | Annual service |
| Safety | Risk if indoor use | Safe (outside installation) |
Portable generators are a budget option for occasional use, but whole-home systems are the responsible choice for Texans who've experienced multi-day outages. You can't rely on your portable unit during a major storm when you're stressed and exhausted—it should activate automatically.
Top Generator Brands We Install
Generac (Most Popular)
Generac dominates the US market with reliable standby generators available from 7kW to 45kW+. Their PWRcell modular battery system is growing for solar integration. Automatic transfer switches are intuitive. Widely serviced. Models: Guardian, EcoGen (fuel-efficient), PowerPact. Warranty: 5-10 years depending on model.
Kohler (Premium Option)
Kohler generators are known for quiet operation and durability. Their Resilient Generators feature load-following technology to reduce fuel consumption. Higher upfront cost but excellent reliability. Models: EcoGen (natural gas), OnSite (propane). Warranty: 5 years standard, extended available.
Briggs & Stratton
Briggs & Stratton offers solid mid-range options with good parts availability. Their standby line is reliable, though not quite as widespread as Generac. Models: ELITE, PowerMax. Good value for the money.
Generator Installation Cost Breakdown
| System Type | Capacity | Typical Cost | What's Covered |
|---|---|---|---|
| Portable Backup | 7.5kW | $2,000–$3,500 | Unit + basic extension cord setup |
| Entry-Level Whole-Home | 14kW | $5,000–$7,500 | Generator, ATS, natural gas connection, concrete pad, basic installation |
| Standard Whole-Home | 20kW | $7,500–$10,000 | Generator, ATS, gas line installation, subfeed panel, permits, inspection |
| Large Home System | 22–26kW | $10,000–$15,000 | High-capacity generator, premium ATS, gas extension, service panel upgrades, permits, inspection |
Cost Factors
- Distance from gas line: Long gas extensions cost $1,000-$2,000+
- Propane tank: Required if no natural gas (add $500-$1,500)
- Electrical upgrades: If panel needs repairs or breaker replacement (add $500-$1,500)
- Permits & inspections: $200-$500 per jurisdiction
- Concrete pad: Usually $300-$600
We provide a detailed quote after surveying your home. All prices include permits, inspections, load testing, and a 1-year service plan.
Safety & Electrical Codes
NEC Article 702: Interconnected Electric Power Production Sources
This is the primary code governing standby generators and automatic transfer switches. It requires:
- Proper grounding of generator frame and bonding conductors
- Automatic transfer switch rated for continuous duty and fast switching (10 seconds or less)
- Mechanical interlock preventing simultaneous connection to utility and generator
- Load calculations ensuring generator capacity matches critical loads
- Disconnect switches for isolation during maintenance
NEC Article 700: Emergency Systems
Applies to hospitals, emergency operations, life safety systems. More stringent than Article 702. Some Texas facilities require emergency (not standby) systems.
Gas Code Compliance (NFPA 54)
If connecting to your natural gas line, the installation must meet NFPA 54 (National Fuel Gas Code). Requires proper pressure regulation, sediment traps, and gas meter clearance.
Texas Electrical Licensing
All generator installations must be performed by licensed electricians. Lone Star Electric holds TX License #TECL29847. Your system will pass all inspections the first time.
Why Texas Homeowners Need Generators
February 2021 Ice Storm: Widespread power outages lasted 3-7 days across North Texas. Homes without heat, water heaters, or sump pumps suffered pipe bursts and flooding. A generator would have prevented thousands in water damage.
Summer Severe Thunderstorms: Monsoon season (May-August) brings sudden derecho-force winds, hail, and flash flooding. Outages often occur without warning. ERCOT stress can cause rotating blackouts during heat waves (103°F+ days).
Tornado Season (April-June): Rotating storms can down power lines across entire neighborhoods. Even if your home survives, being without power while neighbors' homes are damaged is dangerous.
Oncor Reliability: Oncor Electric Delivery serves Plano/Frisco. While reliability has improved, equipment failures and maintenance outages still occur. Your natural gas supply is typically redundant and more reliable than the power grid.
A generator protects your family, home, and peace of mind. It's not a luxury—it's insurance against the weather patterns we live with every year in Texas.
Ready to Protect Your Home?
We'll survey your electrical panel, calculate your load, recommend the right generator, and provide a detailed quote—all free. No obligation, no pressure. Schedule a time that works for you.
Call (469) 555-0247 for a Free Estimate