Tri-fuel portable generators run on propane, natural gas, or gasoline. Charlotte outages rarely exceed 24 to 48 hours and happen about 2 to 3 times a year, so that flexibility makes a portable tri-fuel setup the practical backup choice for most homes here.
When storms, tree limbs, or utility work interrupt service in Mint Hill or Matthews, the goal is not to power everything just because you can. The goal is to keep the loads that matter running with a setup that matches the home and gives the homeowner clear options.
That is why Patterson starts with the home, the panel, and the client’s actual need. People Centered Solutions means there is no cookie-cutter generator package.
Why Three Fuels Matter During an Outage
A tri-fuel portable can run on propane, natural gas, or gasoline. That keeps the homeowner from being locked into one fuel when an outage changes what is available.
Running a portable engine on natural gas reduces its total running wattage output by roughly 15 to 20% compared to gasoline, and Patterson factors this fuel capacity drop into the initial load evaluation so essential circuits never drop out.
Charlotte power is generally reliable. Outages rarely run longer than 24 to 48 hours, and they happen maybe 2 to 3 times a year. For most homes, that makes a portable generator a more practical fit than spending $25,000 to $30,000 on a standby system.
The right answer still depends on the person using it. A client with limited mobility may need a different solution because setting up a portable is not practical. Patterson listens first, evaluates the load, and then recommends the system that fits the real situation.
Portable and Standby Are Different Tools
A standby generator is automatic. It typically runs on natural gas, transfers within about 45 seconds of a power loss, and transfers back when utility power returns. That convenience comes at a very different cost.
A portable system generally runs one-third to one-quarter the cost of standby. It asks the homeowner to follow a clear setup process, which is why Patterson includes hands-on training and written instructions.
If the household later moves to standby, Patterson has a buyback program. The company repurchases the portable at market price and applies that amount toward the standby system.
What Patterson Installs and Why
Patterson is a certified installer and preferred vendor of DuroMax portable generators. The tri-fuel lineup includes push start, a remote, and a 5-year manufacturer warranty.
That warranty support has mattered in the real world. One client’s XP16000 inverter would not crank because a furry friend had nested inside and pulled insulation. The manufacturer sent every part the unit needed at no charge and without a shipping charge. The client paid only for labor. That is the kind of support Patterson wants behind equipment installed at a client’s home.
What a Proper Tri-Fuel Setup Includes
Patterson’s process is white glove. The generator ships to Patterson first. The team unpacks it, assembles it, adds fuel and oil, and runs a complete test before delivery.
At the home, Patterson installs the inlet and interlock at the electrical panel. The team evaluates whether the homeowner wants to cover the whole home or only essential loads. The generator is sized around what the house must keep running, not around a generic package.
If the air conditioner needs to run from the generator, a soft start may be part of the plan. It typically costs about $350 installed and can cut the air conditioner’s inrush current by up to 65%.
The homeowner also gets hands-on training. Patterson tapes a step-by-step one-sheet next to the panel because an outage can happen at three in the morning, when nobody wants to search for instructions with a flashlight.
What an Installed Portable Package Costs
A complete portable generator package generally runs from $3,500 to about $6,000 installed. Most Patterson installations land between $5,200 and $5,500.
The generator power cord can run from a couple hundred dollars to $600, depending on its length and jacket rating. That cost comes from the amount of copper in the cord.
The service plan is $350 per year, with the first year included when the generator is purchased. It includes two visits each year for an oil check, test run, simulated outage, and refresher training.
Tri-Fuel Generator FAQ
Can a portable generator run the whole home?
That depends on the home’s load and what must stay on. Patterson evaluates whole-home needs against essential loads before sizing the generator.
Can the air conditioner run on the generator?
It may be included when the generator is sized for it. A soft start can reduce the inrush current by up to 65% and is typically about $350 installed.
What fuel can a tri-fuel generator use?
It can run on propane, natural gas, or gasoline. Natural gas reduces running wattage by roughly 15 to 20% compared with gasoline, so Patterson accounts for that drop during the load evaluation.
Is generator maintenance included?
The first year of Patterson’s $350 annual service plan is included with a generator purchase. The plan provides two visits each year and refresher training.

