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Generator Buying Guide

Last updated on Jan 9, 2025

In today's fast-paced world, reliable power is a necessity for business operations. Although a commercial generator ensures uninterrupted operations during unexpected power outages, choosing the right generator for your specific needs can feel overwhelming. Whether you're seeking a backup power solution or a primary energy source, this guide equips you with the knowledge to make an informed purchasing decision regarding generators, ensuring your business stays powered, productive, and protected.


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Use the following links to learn more about the different types of generators:
  1. What Is a Generator?
  2. Types of Generators
  3. Generator Start Types
  4. Benefits of Having a Generator
  5. Generator Purchasing Considerations

What Is a Generator?

A generator is a machine designed to produce electrical power by converting mechanical energy into electricity. It serves as a reliable power source, providing electricity during outages, in off-grid locations, or for specific applications where consistent power is essential. Commercial generators are designed to withstand heavy use and provide reliable power for extended periods. They often feature advanced control systems that allow for automatic operation and seamless transition between utility power and generator power in the event of an outage. Commercial generators may also have built-in safety features such as overload protection and low-oil shutdown to prevent damage and ensure optimal performance.

How Does a Generator Work?

Generators operate on the principle of electromagnetic induction. When a generator runs, a mechanical force, usually provided by an engine, turns a rotor inside the generator. This rotor is surrounded by a stator with coils of wire. As the rotor spins, it creates a changing magnetic field that induces an electric current in the stator's coils.

To ensure a steady supply of electricity, generators are equipped with a voltage regulator that maintains a constant voltage output. This is crucial for protecting sensitive electronic equipment from damage due to voltage fluctuations. Generators also have a fuel or power source, such as gasoline, diesel, natural gas, or propane, that powers the engine driving the rotor. The size of the generator and the fuel source it uses will determine its power output and run time.

Types of Generators

Generators are designed to meet diverse power needs, ranging from heavy-duty industrial use to portable convenience. Whether you need a traditional fuel-powered engine or an advanced battery system, the diversity of options ensures there's a generator suited for every application.

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Conventional Generators

Conventional commercial generators are the backbone of many businesses, providing reliable power to keep operations running smoothly. These generators typically use internal combustion engines powered by fuels such as diesel, gasoline, or natural gas to generate electricity. Known for their durability and ability to handle substantial energy demands, conventional generators are a staple in industries ranging from foodservice to manufacturing.

  • Reliable option that can run for extended periods with proper maintenance
  • More affordable upfront compared to other types of generators
  • Easy to maintain, troubleshoot, and repair
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Engine Generators

Engine generators are robust power sources that can handle heavy-duty applications. They are designed to provide reliable power for extended periods and are commonly used in construction sites, outdoor events, and as primary power sources for businesses.

  • Capable of providing high power output, making them suitable for heavy-duty applications and large facilities
  • Longer lifespan compared to other types of generators
  • Durable enough for continuous use in commercial settings
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Portable Generators

Portable generators offer a convenient power solution for businesses on the go or in locations without access to traditional power sources. These generators are versatile and easy to transport, making them ideal for outdoor events, food trucks, and emergency backup power.

  • Easy to transport to different job sites or event locations
  • More affordable than other generators
  • Great for temporary power needs
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Inverter Generators

Inverter generators are known for their clean and stable power output, making them suitable for sensitive electronic equipment. These generators are fuel-efficient and produce less noise compared to traditional engine generators, making them a popular choice for businesses that require consistent power without disruptions.

  • Quieter than other generators
  • Produce a stable and clean power output
  • Fuel efficient

 

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Power Stations

Power stations are compact, rechargeable energy systems designed to provide portable and renewable power. Unlike traditional fuel-powered generators, power stations use batteries to store electricity, which can be charged through various sources such as wall outlets, car chargers, or solar panels.

  • Scalable to different power levels
  • Portable
  • Great for powering small equipment in hard-to-reach locations

Generator Start Types

Modern generators come equipped with various start types, each designed to suit different needs and preferences. Whether you prioritize simplicity or ease of access, understanding the available options ensures you pick a generator that's both practical and user-friendly.

  • Recoil Start - Recoil start generators, also known as pull-start generators, require the user to manually pull a cord to start the engine. This traditional start method is reliable and does not rely on external power sources. Recoil start generators are typically more affordable than electric start models and are suitable for smaller applications where frequent starting is not needed.
  • Electric Start - Electric start generators feature a push-button start mechanism that requires a battery to power the starter motor. This type of start is convenient and easy to use, eliminating the need for manual pulling of a cord. Electric start generators are ideal for larger commercial settings where quick and effortless starting is essential.
  • Wireless start - Wireless start generators offer the convenience of starting the generator remotely using a wireless key fob or app. This advanced start type is ideal for situations where the generator is located in a hard-to-reach area or during emergencies when immediate power is required. Wireless start generators provide added flexibility and control, making them a valuable option for commercial applications.

Benefits of Having a Generator

A generator is more than just a backup power source, it's a vital tool that ensures stability, safety, and productivity in a variety of situations. No matter what type of business you run, the advantages of having a generator extend far beyond keeping the lights on.

  • Continuous Operations - A generator ensures that your business can continue operating even when faced with power outages. This is especially important for businesses such as restaurants, healthcare facilities, and data centers that cannot afford downtime.
  • Protection of Equipment - Sudden power surges or outages can damage sensitive equipment such as computers, refrigeration units, and machinery. By having a generator in place, you can protect your valuable assets from potential damage.
  • Emergency Preparedness - Natural disasters and unforeseen events can lead to power outages that may last for an extended period. Having a generator ensures that your business is prepared for emergencies and can continue to function even in challenging circumstances.
  • Customer Satisfaction - For businesses that rely on continuous power supply to serve customers, having a generator is essential. It helps maintain customer satisfaction by ensuring that services are not interrupted during power outages.
  • Compliance with Regulations - Some industries have specific regulations that require businesses to have backup power sources in place. By investing in a generator, you can ensure that your business remains compliant with industry standards and regulations.
  • Cost Savings - While the initial investment in a generator may seem significant, the long-term cost savings can outweigh the expenses incurred during power outages. By avoiding losses due to downtime and equipment damage, a generator can prove to be a cost-effective solution for your business.

Generator Purchasing Considerations

Generators come in various sizes, capacities, and features, each tailored to meet specific needs. Whether you're purchasing for emergency backup, continuous power, or specialized industrial use, understanding the factors influencing your choice ensures you make a smart investment.

  • Size - The size of the generator you choose should be based on the power requirements of your establishment. Consider the number of appliances, equipment, and systems that will need to be powered in an outage. Select a generator that can handle the total wattage of these items to ensure uninterrupted operation during power loss.
  • Price - Generators come in a wide range of prices, depending on their size, power output, and additional features. It is essential to establish a budget for your generator purchase and consider the long-term costs associated with maintenance, fuel, and repairs. While it may be tempting to opt for a lower-priced unit, investing in a higher-quality generator can provide more reliable performance and save you money in the long run.
  • Noise - Commercial generators produce varying levels of noise during operation, which can be a concern depending on the location of your establishment. If your business is in a noise-sensitive area or if you have customers or employees who may be affected by loud generator noise, consider selecting a unit with lower decibel levels. Many manufacturers offer quiet or soundproofed models that are designed to minimize noise output.
  • Capacity - The capacity of a generator refers to its ability to provide power for a specific duration of time. Consider the runtime of the generator at various load capacities to ensure it can meet your business's needs during extended power outages. Some generators offer the option to connect multiple units in parallel to increase power capacity, providing flexibility for future expansion or increased power demands.
The information provided on this website does not, and is not intended to, constitute legal advice. Please refer to our Content Policy for more details.

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