Automatic Standby Generators

Garber Electrical is an authorized Generac dealer, and we install and service Generac standby generator systems because they have a long history of reliability, product support, strong parts availability, and a broad range of residential, commercial, and agricultural products.

If you're considering a standby generator, we're happy to discuss whether a Generac system is the right fit for your property .

Reliable Backup Power That Starts Automatically

When the power goes out, an automatic standby generator restores power to your home or business without the need to wheel out a portable generator, run extension cords, or manually start an engine.

An automatic standby generator system consists of two main components:

• The Generator – A permanently installed engine-driven generator located outside your home or business.

• The Automatic Transfer Switch (ATS) – A device that continuously monitors utility power and automatically transfers your electrical system to generator power when an outage occurs.

For homeowners and businesses that want reliable backup power with minimal interruption, an automatic standby generator is often the most convenient solution available.

Is an Automatic Standby Generator Right for Me?

An automatic standby generator may be the right choice if:

• You want backup power without manual setup.

• You rely on sump pumps, refrigerators, freezers, well pumps or other essential equipment essential to your home / business.

• You live in a rural area where power outages are more common or may last longer.

• You travel frequently and may not be home during an outage.

If your goal is simply to keep a refrigerator and a few lights operating during occasional outages, a portable generator with a transfer switch may be a more economical solution. Our goal is to help you choose the system that best fits your needs and stay within your budget.

How Does an Automatic Standby Generator Work?

The entire process happens automatically.

1. Utility power is lost.

2. The automatic transfer switch detects the outage.

3. The transfer switch sends a start signal to the generator.

4. The generator starts and reaches normal operating speed.

5. The transfer switch safely transfers your electrical system to generator power.

6. When utility power returns, the transfer switch reconnects your home or business to the utility.

7. The generator runs briefly to cool down before automatically shutting off.

Depending on the generator model and fuel type, the entire process typically takes 10–20 seconds.

Fuel Options

Automatic standby generators are commonly fueled by either natural gas or propane.

Natural Gas

Natural gas provides virtually unlimited runtime as long as the gas utility remains operational. This makes it an standard option for homes and businesses that already have natural gas service.

Propane

Propane generators typically produce slightly higher power output but are limited by the size of the propane tank. Fuel consumption varies depending on generator size and electrical load, so we'll help estimate expected runtime based on your installation.

What Can an Automatic Generator Power?

One of the biggest advantages of a standby generator is its ability to power much larger electrical loads than a portable generator.

Depending on the generator size, it may be capable of powering:

• Entire homes

• Businesses

• Refrigerators and freezers

• Sump pumps

• Well pumps

• HVAC systems

• Lighting

• Security systems

• Internet and networking equipment

Every installation is different, which is why proper generator sizing is one of the most important parts of the planning process.

Installation Considerations

Every property is different, but there are several important factors to consider before installing a standby generator.

Generator Location

The generator is installed outdoors inside a weather-resistant enclosure.

Manufacturers specify minimum clearances around the unit to ensure safe operation and proper airflow. Keeping shrubs, landscaping, snow, and debris away from the generator helps maintain adequate cooling and reliable operation.

Foundation

Generators are typically installed on either:

• A poured concrete pad

• A manufacturer-approved precast concrete pad

Both require a properly prepared gravel base to minimize settling over time.

Electrical Connections

Electrical conduit is installed between the generator and the automatic transfer switch, and in most cases trenching is required.

Every installation is unique, and we'll discuss the best layout for your property before work begins.

What Happens During Installation?

"Will my power be off while the generator is installed?"

Yes, but usually for a much shorter time than people expect.

We try to install as much of the equipment as possible before disconnecting your electrical service. This minimizes the amount of time your home or business is without power.

For customers with critical equipment such as refrigerators, freezers, sump pumps, or networking equipment or other equipment that cannot be without power for extended times, we can discuss temporary power options before installation begins.

Our goal is to make the transition as smooth as possible.

Maintenance Requirements

Like any engine, standby generators require regular maintenance to ensure reliable operation.

Annual maintenance typically includes:

• Engine oil and filter changes

• Air filter inspection or replacement

• Battery inspection

• Cooling airflow inspection

• Visual inspection for rodent damage or debris

• Automatic transfer switch inspection and testing

• Check out our thermal imaging services, as this may provide valuable insight when maintenance is performed

Manufacturers offer maintenance kits that include many of the required service items.

If you'd rather not perform the maintenance yourself, we'd be happy to schedule annual service.

Automatic Self-Testing

Most standby generators automatically perform a scheduled exercise cycle on a weekly, bi-weekly, or monthly basis.

During this test, the generator starts and checks its operating systems to verify it is ready for service.

Depending on the programming, the transfer switch may or may not actually transfer your home onto generator power during the exercise cycle.

We still recommend performing a complete operational test at least on an annual basis to verify that the generator and transfer switch are functioning properly.

Cold Weather Accessories

Living in Wisconsin presents unique challenges.

Many standby generators can be equipped with optional cold weather kits that help ensure reliable starting during cold temperatures.

These kits typically include:

• Battery warmers

• Oil heaters

• Carburetor or throttle body heaters

These accessories help keep the generator ready for operation even during severe winter weather.

Is an Automatic Standby Generator Worth It?

Only you can answer that question—but for many homeowners and businesses, the answer is yes.

The biggest advantage isn't simply having backup power.

It's having backup power without having to do anything.

When the lights go out, there's no need to pull a generator from storage, fuel it, or connect extension cords.

Instead, you simply wait while the generator starts automatically and restores power.

That convenience provides peace of mind, especially for families who travel, businesses that rely on continuous operation, and rural properties where outages may last longer.

While automatic standby generators require a larger investment than portable generators, they also provide the highest level of convenience and protection.