Georgetown, TX Standby Generator Installation & Maintenance Guide

Estimated Read Time: 11 minutes

A storm knocks out power and the house goes dark. With the right whole house generator sizing, your lights, AC, and fridge stay on without a scramble. In this guide, you will learn how to choose the correct kW for your goals, fuel source, and budget in Central Texas. We will cover real‑world examples, utility constraints, and a fast sizing formula so you can make a confident decision.

Why generator sizing matters in Austin

Sizing is about comfort, safety, and the ERCOT reality. Austin has seen multi day outages in winter and severe storms each spring. A generator that is too small trips off under load. One that is too large wastes fuel and money. Good sizing considers your essential loads, starting surges, gas supply limits, noise, and location on your lot.

Two hard facts set the tone. First, Generac whole home systems include a 10 year warranty when installed by trained professionals and kept within guidelines. Second, Consumer Reports notes standby generators can increase home value by about 3 to 5 percent when correctly sized and permitted. That is why a careful plan beats guesswork.

SALT covers the details for Austin Energy and nearby jurisdictions, from permit steps to pad placement. Our team sizes the unit, verifies gas availability, and matches a transfer switch to your panel so your home runs smoothly when the grid fails.

Step 1: Decide what you want to power

Start with outcomes, not equipment. Make a short list of must run items during an outage:

1. Safety and comfort
   • Refrigerator and freezer
   • Heating system or heat strips, or gas furnace controls
   • Air conditioning or at least one zone for health and humidity
   • Well pump or sump pump if applicable
2. Daily life
   • Lights and outlets in key rooms
   • Internet modem and router
   • Garage door opener
   • Microwave and small appliances
3. Special loads
   • Medical devices
   • Home office servers
   • Pool equipment

Label each load as essential, nice to have, or not needed. Many Austin homeowners choose to power one AC zone, the kitchen, primary bedroom, internet, and critical lighting. Whole home coverage is possible, but you may not need every circuit at once. This list guides your kW target.

Step 2: Calculate running vs starting watts

Every motor needs extra power for a few seconds at start up. That surge can be 2 to 6 times the running watts. If you ignore it, your generator may bog down and trip.

Use this simple approach:

1. Find the running watts for each item. AC systems list tons and minimum circuit amps. Multiply volts by amps for watts.
2. Identify the biggest motor loads, typically air conditioning, well pump, or pool pump.
3. Estimate starting surge. A 3 ton AC can need 7,000 to 9,000 watts to start even if it runs at 3,500 to 4,000 watts.
4. Add running watts for your essential list, then add the largest single surge on top.

Example: Kitchen lights and outlets 800 W, fridge 700 W, internet 50 W, furnace blower 600 W, 3 ton AC runs at 3,800 W with a 8,000 W start. Your running total is about 6,000 W. Add the 8,000 W surge. A 14 kW generator provides safe headroom.

SALT also uses soft start kits and load management modules to stagger starts so you can run more on a smaller unit without nuisance trips.

Step 3: Choose fuel and know utility limits

Central Texas homes typically use one of three fuels: natural gas, propane, or diesel.

• Natural gas: Clean, convenient, and unlimited during long outages in most neighborhoods. Your gas meter and line must deliver enough BTUs per hour for generator load plus other appliances. We size the generator and verify meter capacity, often 250 to 400 CFH or higher, with your utility.
• Propane: Ideal where gas is not available. You will need a tank sized for runtime, commonly 250 to 500 gallons for residential standby. We calculate burn rate in gallons per hour at 50 to 100 percent load so you can plan refills.
• Diesel: Used less in neighborhoods due to storage and odor. It suits large estates or commercial sites.

Local insight: Austin Energy permit review and gas utility coordination can add time. SALT handles the paperwork, confirms clearances to windows and property lines, and prevents meter undersizing that causes dropout under heavy AC load.

Step 4: Match kW to your panel and transfer switch

A whole house generator uses an automatic transfer switch that senses utility loss and starts the unit within seconds. The switch rating must match your main panel amperage, often 200 amps in modern homes.

Options include:

1. Whole home transfer switch with load shedding. This powers the entire panel but can pause non essential circuits during heavy starts, such as a second AC compressor.
2. Essential circuits subpanel. We move only selected breakers to the backed up panel to keep the generator smaller and efficient.
3. Smart management modules. These wireless devices delay water heater or pool pump starts so the generator handles AC first.

SALT sizes the transfer switch, confirms wire and breaker compatibility, and installs on a concrete or composite pad per manufacturer requirements. Correct pairing prevents bottlenecks that waste generator capacity.

Popular sizes and what they run

While every home is different, these examples help set expectations:

• 10 to 13 kW: Powers essentials. Fridge, lights, outlets, internet, gas furnace controls, and possibly a small 2 ton AC with a soft start. Good for smaller homes or conservative backup.
• 18 to 22 kW: Most popular for 2,000 to 3,000 square feet in our market. Runs kitchen, lights, internet, a 3 to 4 ton AC with soft start, and typical plugs. Often supports one HVAC zone plus daily life.
• 24 to 26 kW: Adds headroom for two AC compressors that do not start at the same time, electric water heater management, and more convenience loads.
• 38 kW and up: Large homes with multiple HVAC systems, high end kitchens, or a pool. Also suits properties with guest houses or extensive smart home gear.

Your electrical demand, not square footage alone, decides the size. We take a load reading, review nameplates, and simulate starting surges. This avoids the common mistake of oversizing for peace of mind when smarter load control will do the job.

Permits, placement, and timeline in Central Texas

Expect a professional process. SALT performs a site visit, confirms clearances, and designs the pad location near your service equipment. We route gas or propane lines, set the pad, and handle all permits.

Practical timing: Installing a concrete pad and allowing it to cure takes at least a couple of days before the generator can be set and wired. Some Austin Energy permits can extend timelines, especially during peak storm season. Our coordinators keep you informed and fast track where possible.

Placement rules protect safety and comfort. We maintain clearance to windows and doors, respect property line setbacks, and position the unit to reduce noise to bedrooms and neighbors. We also plan crane access and fuel truck access for propane.

Maintenance and reliability planning

A correct size is only half the story. Reliability comes from maintenance and parts support. SALT recommends annual generator maintenance, ideally before peak storm season. During our preventative maintenance appointment, we will:

• Conduct a function check
• Replace air and oil filters
• Check and replace oil
• Check fuel levels
• Inspect the unit for any damage
• Simulate a power outage
• Replace spark plugs if needed
• Check and secure wiring and other connections

Generac units include Wi Fi remote monitoring, so you can see status and alerts on your phone. Common wear items include internal brushes that can degrade after heavy use. We stock parts and can replace worn components to restore full capacity. SALT+ members receive priority scheduling and member pricing to keep systems ready.

Cost, financing, and value

Total cost depends on size, fuel type, pad, trenching, permits, and electrical complexity. Many homeowners qualify for promotional savings and financing that reduce the upfront burden. There may be federal tax incentives available for certain installations; always confirm eligibility with a tax professional.

Value is more than convenience. A properly sized and permitted standby system can increase home value by roughly 3 to 5 percent according to Consumer Reports. Health and safety benefits matter too, especially during winter events or heat waves when indoor temperatures swing quickly without HVAC.

To protect your investment, professional installation by licensed electricians keeps manufacturer warranties valid. SALT installs to code, registers your warranty, and provides documentation for insurance and resale.

Get a professional sizing visit from SALT

Here is what you can expect when you schedule:

1. Load and lifestyle review. We list essentials and comfort items, then set your kW target with running and starting loads.
2. Fuel and meter check. We verify gas capacity or plan propane storage with clear estimates of runtime at different loads.
3. Site layout and permitting. We select a pad location, plan wire and piping routes, and submit permits.
4. Installation timeline. We set expectations, including pad cure time and inspection sequence.
5. Startup and training. We simulate an outage, enroll remote monitoring, and show you how it all works.

You get a written proposal with options, financing choices, and membership perks. Our goal is quiet, automatic protection that fits your home and budget without oversizing.

Special Offers for Austin Area Homeowners

• Save $650 on a new Generac generator sold and installed by SALT. Mention the $650 Generac promotion when you call. Limited time.
• No money down and 0% financing for up to 12 months on qualifying installations for approved credit. Options up to 18 months may be available.
• SALT+ members receive 5% off new generator equipment and member pricing on repairs and maintenance.

Call (512) 559-4206 or visit https://callsalt.com/ to lock in savings today.

What Homeowners Are Saying

"SALT installed a generator in my backyard. They were thorough, knowledgeable and explained each step of the process. We lose power every other week and I am so glad I wont have to worry about that anymore. I enrolled in the SALT+ program and look forward to them maintaining our home Generator, HVAC, Electrical and Plumbing systems. Great experience!"
–Brooklyn G., Austin

"Thank you Michael from Salt Light and Electric. It was a pleasure dealing with a true professioanl who is knowledgeable, approachable, and patient. Michael took care of my generator yearly maintenance efficiently while answering all my questions and providing a customer-oriented experience. Thank you again, and thank you SALT."
–A. A., Generator Maintenance

Frequently Asked Questions

How do I estimate the kW size for my home?

List essential circuits, total running watts, then add the largest starting surge. Most homes land between 18 and 26 kW with load management. A professional load calculation confirms the number.

Can a 22 kW generator run my AC?

Often yes for one zone, especially with a soft start. A 3 to 4 ton AC typically fits on a 22 to 26 kW system with proper load management. We verify starting amps before final sizing.

Do I need permits in Austin?

Yes. Electrical, gas, and sometimes zoning permits are required. SALT handles applications, inspections, and coordinates with Austin Energy. Pad placement and clearances must meet code.

What fuel is best for standby generators?

Natural gas is convenient and steady. Propane works where gas is not available and needs a tank sized for runtime. Diesel suits large estates. We check meter capacity or tank sizing for your load.

How often should I service my generator?

Schedule maintenance once per year, ideally before storm season. Service includes oil and filter changes, a function check, simulated outage, and inspection of wiring and spark plugs.

The bottom line

Choosing the right size whole house generator comes down to loads, fuel, permits, and proper installation. A precise plan keeps your home comfortable and safe during Austin outages. For expert whole house generator sizing in Austin and nearby cities like Round Rock, Georgetown, and Cedar Park, schedule your free assessment with SALT.

Ready to stay powered?

Call (512) 559-4206 or visit https://callsalt.com/ to schedule your generator sizing visit. Mention the $650 Generac promotion for instant savings. Protect your home before the next storm with SALT+ priority service and maintenance.

Call (512) 559-4206 or visit https://callsalt.com/ to schedule your whole house generator sizing visit. Ask for $650 off a new Generac install and 0% financing for up to 12 months on approved credit.

About SALT Plumbing Air & Electric

Family owned and serving Austin since 1984, SALT delivers licensed, trained electricians backed by a lifetime guarantee on repairs and installation. We install Generac and other whole home generators, handle permits, and provide SALT+ membership benefits like priority service and member pricing. Voted Best in Austin multiple years with 24/7 support. Total home care you can trust.