Home >

Business Standby

Generac: Leader in Affordable Business Standby Generators

Why Businesses Need a Standby Generator

There are many reasons why a business needs a standby generator. The bottom line is, when power gets knocked in during a storm, you want to stay open. A Generac generator can help you. There are a number of reasons a business might consider backup power and things that are important to them. These include:

  • Asset Security
  • Emergency Power
  • Employee Safety
  • Fuel Type for Business Backup
  • Natural Disaster Backup Power
  • Standby Power Gives You ROI

What is backup power worth to a business? Every hour without power is an hour without sales. Some types of businesses could recoup the cost of a generator in less than a day!

Business Lost sales per hour* Typical generator size (kW) Approximate generator cost (installed) Payback (hours)
Convenience store / gas station $556 100 $27,000 48
High-volume restaurant $881 150 $37,000 42
Drug store $1,750 150 $37,000 21
Supermarket $4,388 300 $81,000 18

*Does not include the cost of lost inventory and equipment/property damage

Generac Protector™ Series

Traditionally, business standby generators ran on diesel and were expensive. Generac pioneered the development of clean, affordable propane and gaseous commercial generators. With units readily available in single and three phase voltage, propane or propane vapor and gaseous or dry fuel, there’s no longer a reason for business to operate unprotected from the dangers and costs of a power outage.

Keep Your Power On, Retain and Gain Customers, Keep Revenue Flowing.

Protector™ Series

Generac’s business standby generators run quietly, stand up to severe weather, and provide built-in functionality, making generator ownership easy. Generac offers single and three phase outputs, with voltages ranging from 120V to 480V. Our Protector™ Series generators are available from 22-150kW. These kilowatt nodes are higher than residential generators. Choose natural gas for continuous supply from your local Utility or propane (or propane vapor) for a clean and low maintenance fuel source. You can also field convert any units 48kW or lower from natural gas to propane. Models with special catalysts are available to meet the emission standards in California.

Backup Power

Protect Your Bottom Line. Gain a Competitive Edge.

Whether a power failure is simply not an option, or you just want an advantage over your competitors during a power outage, Generac standby generators make sure you're open for business during a power outage.

Explore All Business Standby Generators

Protector Series Features

Generac’s Protector™ Series offers features that make it a great choice for business owners. A customized risk assessment before you purchase helps you choose the best generator for your needs. Installation is easy and operation is quiet.

First in a New Series of Industry Leading Generators

Generac’s new 4.5L engine intensifies best in industry performance and reliability.  The purpose-built engine is at the heart of a new generator designed from the ground up by Generac and is made in Wisconsin, USA. Generac is one of the few manufacturers producing a complete generator – engine, alternator and controller.

Generac Designed & Built Engine

Purpose-built exclusively for generators, in Wisconsin, USA. Utilizing the first in class, dual-valve ultra-low pressure fuel delivery system and intelligent proprietary engine controls that manage over 100 performance functions to ensure peak efficiency in all temperature ranges and elevations. The engine consumes 25% less fuel than previous engines, is capable of operating at the lowest fuel pressure in the industry at 3.5” of water column while still providing excellent motor starting capability.

True Power™ Technology

Delivers utility-grade power quality with less than 5% total harmonic distortion (THD) for clean, smooth operation of sensitive electronics and appliances.  Generac, controlling its high-efficiency alternator design and production, insures industry-leading surge protection, performance, and longevity.

Generator Package

  • Small Footprint - Generac liquid-cooled product packs more power into the smallest footprint – ideal when space is a premium. The neutral styling, color and small footprint fits unobtrusively into landscaping.
  • Smart, User-Friendly Controls - Generac’s Evolution™ Controller is visible and accessible without opening the generator enclosure. The Evolution Controller features a multilingual LCD display that allows users to monitor and track maintenance intervals to ensure your generator is always in top operating condition.
  • Meets all standards and codes –– without options or additional costs
         a.    NFPA37/18" Offset with SWRI Certification
         b.    NEC Chapter 7 - generator status visible externally
         c.    NEC Chapter 7 – two mechanical shutdown switches
  • Improved serviceability with wider doors and quick access to common service components
  • Mobile Link Connectivity – 4G LTE cellular connectivity option
  • Single-phase compatible with Smart Management Modules


  • Generac designs and builds the complete product for the sole purpose of supply power when needed.  Others buy components and build out from products designed for a variety of uses.
  • Control software is written, engines are assembled, and alternators are wound in Wisconsin
  • 5-Year Limited Warranty for automatic standby generators. Extended warranty options are available.

Generac designs and manufactures a complete line of automatic transfer switches (ATS) to meet the requirements of virtually any business standby power application.

Learn More

Expanded features have created a controller for liquid-cooled models (22 -150 kW) with an improved user interface for easier monitoring and management of the generator functions. Now includes many features and alarms previously available only on larger models.

Learn More
Business Standby Generator

Cold Weather & Maintenance Kits

Consists of a battery warmer with an automatically controlled thermostat built into the battery wrap. Recommended for areas where the temperature drops below 32° F. For areas that see temperatures far below 32°F, we offer Extreme Cold Weather Kits. Maintenance kits are also available, and necessary for the longevity of your unit.

Learn More

Schedule a Free Risk Assessment

Call to Schedule

Call Us at 1-855-395-6522
The best way to find out what generator you need is to schedule a risk assessment.
Chat Now
Chat with a Customer Service Representative

Schedule a Free Risk Assessment

*Required Fields