Commercial Generators

Stay Powered with Commercial Generators

We know how important it is to keep your business running when the power goes out, which is why Hartland Electric’s electric commercial generator sales and service is one of the most comprehensive in the business. Our professional electricians can assess the individual needs of your company and make sure that you have peace of mind with the coverage you need.

What is a Commercial Generator?

Commercial generators are standby devices which are designed to supply electricity to your business or facility during power outages. Our in-line commercial generators switch themselves on automatically when a loss of power is detected. This allows you to continue to operate essential appliances and equipment such as telephones, computers, heating and cooling systems, and lighting, with automatic transfer of power within seconds.

Choosing a Commercial Generator

Commercial generators are stationary pad-mounted and can run on a variety of fuels including gasoline, diesel, natural gas, propane, and oil. Generally, diesel models are less expensive to purchase; however, they typically have shorter run times due to the need to refill the tank. If the power outage is widespread or due to severe weather conditions, delivery and refill services may not be available. Natural gas tends to be the more reliable choice for stationary models because of its constant availability.

Commercial generators usually start in sizes that range from an output of 25 kilowatt (Kw) to over 1000 Kw.

Wired Systems

Standby power backups connect to a building's wiring through a transfer switch. Transfer switches prevent dangerous and illegal "backfeeding" into utility lines. In addition, they protect your generator from the damage caused by voltage from the utility company that is applied while the backup device is in operation. Transfer switches can be either automatic or manual and need to be rated to carry the larger of either the generator's full output or the maximum load of your business.


If your commercial generator is intended to supply only a portion of your business’s electrical load, a list should be made of the electrical equipment to be powered during an outage. For example: telephones, lighting, furnace blower motor, etc. Compare the total wattage of the equipment to the total wattage output rating of the generator and do not exceed it.

When it comes to installing stationary generators or performing electric generator service, a licensed Hartland Electric electrician should complete all the electrical connections to avoid any problems. Additionally, all wiring and equipment must comply with local, state and federal laws or codes, be inspected, and adhere to the rules and regulations of your local utility.

Commercial Generator Brands


Hartland Electric is an Eaton Certified Contractor. Eaton's standby generators make a reliable back up power supply easy, affordable and worry-free for residential and light commercial applications. Whether you are at work or away, Eaton standby generators quietly protect your home and business with an immediate, automatic, and reliable response to utility power failure.


Losing power for even a few hours can mean thousands of dollars in lost revenue to your business. Security systems go down, refrigerated goods spoil, and customers are turned away. Generac revolutionized the commercial generator market with the first standby generators powerful enough to back your entire business without the cost of expensive configured systems. Keep your business open with a competitive advantage.

Hartland Electric is your source for expert commercial generator installation and service. Contact us today to learn more about commercial generators or to schedule an appointment.