Frequently Asked Questions About Whole-Home Generators
When the power goes out, a whole-home generator can keep your lights on, your fridge running, and your family safe and comfortable. As severe weather events become more frequent and aging utility infrastructure leads to unexpected outages, Southlake, TX homeowners are looking for dependable backup power solutions.
Whole-home generators, also known as standby generators, are increasingly popular—but they also come with plenty of questions. If you’re considering one, here are answers from Generator Authority experts to frequently asked questions that can help you make an informed decision.
1. What is a whole-home generator?
A whole-home generator is a standby power system that automatically provides electricity to your entire Southlake, house when the main power supply fails. Unlike portable generators, which need to be manually started and only power a few appliances, a whole-home generator is permanently installed and wired into your home’s electrical system. It starts automatically within seconds of a power outage and can run continuously for as long as needed, depending on its fuel source.
2. How much does a whole-home generator cost?
The cost of a whole-home generator varies based on the size of your home and the level of backup you want. On average across the industry:
- Generator unit: $3,000 to $10,000+
- Installation (including permits, electrical work, and fuel hookup): $3,000 to $7,000
- Total cost: $6,000 to $17,000 or more
Factors like your local labor rates, proximity to a natural gas line, and whether you’re backing up your entire house or just essential systems will affect the total price.
While it’s a significant upfront investment, many homeowners view it as a long-term value—especially in areas with frequent outages or extreme weather.
3. What size generator do I need?
Generator size depends on the electrical load you want to support during an outage. Common whole-home systems range from 16 kW to 26 kW or more, with 20 kW being a popular middle ground.
If you want to power essentials (like HVAC, refrigerator, lighting, and internet), you might need a smaller system. If you want to run everything—HVAC, well pumps, water heaters, kitchen appliances, and entertainment systems—you’ll need a larger unit.
The best way to determine the right size is to have a licensed electrician perform a load analysis based on your specific home and energy usage.
4. What types of fuel do whole-home generators use?
Whole-home generators typically run on natural gas, propane (LPG), or diesel. Here’s a quick breakdown of the differences:
- Natural Gas: If your Southlake, home is connected to a municipal gas line, this is often the most convenient and cost-effective option. There’s no need to store fuel, and supply is continuous.
- Propane: Ideal for rural areas without natural gas access. It requires an onsite tank that needs periodic refilling but has a longer shelf life than gasoline or diesel.
- Diesel: Less common for residential use but known for power and reliability. Diesel units typically have higher maintenance needs and fuel storage requirements.
Your choice will depend on what’s available in your area and how much power you need.
5. How long can a whole-home generator run?
A whole-home generator can run indefinitely as long as it has access to fuel. Here’s how that breaks down by fuel type:
- Natural Gas: As long as the utility supply isn’t disrupted, it can run for days or even weeks.
- Propane or Diesel: Runtime depends on the tank size. For example, a 500-gallon propane tank can power a 20 kW generator for 7–10 days of continuous use. Refueling is necessary for extended outages.
Manufacturers often recommend maintenance checks or shut-downs for servicing during extended runs to keep the generator in good shape.
6. How loud are whole-home generators?
Whole-home generators are quieter than portable ones but still produce noticeable noise. Most models operate at 60–70 decibels, which is similar to the hum of an air conditioning unit.
Many brands offer “quiet” or “low-noise” models and sound-dampening enclosures can help reduce the generator’s impact on your home environment. When installed properly—often outside and a few feet from the home—noise is usually manageable.
7. Do whole-home generators require maintenance?
Yes, like any engine-powered machine, they require routine maintenance to ensure reliability. Typical upkeep includes:
- Oil and filter changes
- Battery checks
- Air filter replacement
- Spark plug inspection
- Annual professional service
Some systems come with remote monitoring capabilities, so you or your service provider can track performance and get alerts if maintenance is needed.
Regular servicing is critical, especially since generators often sit idle for long periods and are only needed during emergencies.
8. Will a whole-home generator increase my home’s value?
Yes, in many cases. Whole-home generators are increasingly seen as a valuable home improvement feature, especially in areas prone to outages or extreme weather. They can offer peace of mind to buyers and may make your home more attractive on the market.
According to some real estate surveys, homeowners can expect a 3%–5% boost in their home’s value if they were to sell their Southlake, home. .
9. How is a whole-home generator installed?
Installation should always be done by licensed professionals and typically involves:
- Site selection: Usually near your electrical panel and fuel source, on a level concrete pad.
- Electrical integration: Wiring into your home’s main electrical system, often with an automatic transfer switch (ATS) that switches to generator power during an outage.
- Fuel connection: Hooking up to your natural gas line or installing a propane/diesel tank.
- Permits and inspections: Required in most areas for safety and compliance.
The entire process can take a few days to a couple of weeks, depending on permit timelines and complexity.
10. Is a permit required to install a whole-home generator?
Yes, most municipalities require permits for generator installation, including electrical and sometimes plumbing permits (for fuel lines). You may also need inspections after installation.
Working with a licensed installer like Generator Authority helps ensure your system meets all code requirements and avoids complications with local authorities or insurance providers.
Learn More Today About Installing a Whole-Home Generator
A whole-home generator is a big investment—but for many Southlake, homeowners, it’s worth every penny for the peace of mind and comfort it provides. Whether you’re bracing for winter storms or hurricane season or just want uninterrupted power for your family or home office, a standby generator can make all the difference.
Still have questions? Call Generator Authority to learn more about sizing, fuel options, and installation specifics tailored to your home. Reach out at 817-984-3600 or request service online today.