Electricians Lakeland » Blog | Electrical Tips » How Long Can a Whole Home Generator Run?

How Long Can a Whole Home Generator Run?

Generator outside Florida homeWhen your power goes out, it pays to have a whole-home generator installed. Even if your power is out for weeks, your generator can continue to run. However, your runtime will vary based on your generator size, maintenance consistency, fuel source, and electrical demand. Additionally, you’ll be limited by how much fuel you have on hand.

Quick Takeaways

  • Whole-home generators are generally able to run for several days or weeks.
  • A natural gas generator offers the longest uninterrupted runtime.
  • How long you run a propane or diesel generator will be impacted by the size of your fuel tank.
  • Your electrical load will determine how long your unit can continue operating.
  • Performing routine maintenance will ensure your generator is functional during long power outages.
  • A standby generator is designed to be a long-term source of emergency power. In comparison, portable generators are only intended to be a temporary source of power for projects, camping, or similar activities.

How Long Can a Whole-Home Generator Run Continuously?

The typical runtime will vary based on the power source. While natural gas can potentially run indefinitely, propane and diesel generators will only run for a few days. This is because diesel and propane generators rely on a storage tank. If you have a smaller tank, your unit won’t run as long.

5 Factors That Affect Generator Runtime

There are five key factors that determine how long a generator can run.

Fuel Source

Your fuel source is the most important factor. Natural gas is delivered by the utility provider, so natural gas generators can run for weeks as long as gas service remains available.

Generator Size

A large generator will use more fuel, especially when it operates under a heavy load. As a result, it may run out of fuel earlier.

Electrical Demand

If you are using more electricity, you’ll need more fuel.

Maintenance and Oil Changes

When a unit is not properly maintained, it is more likely to overheat or break down. This type of issue is especially common during power outages because the unit has to run for extended periods of time.

Weather and Storm Conditions

During a Florida heat wave, homeowners end up using their air conditioners continuously. As a result, generators can run out of fuel early.

Can a Generator Run Your Air Conditioner for Days?

Mister Sparky tech explaining how long whole home generator will runIt depends on the generator. A natural gas generator can run your air conditioner for days. However, it depends on the unit’s load capacity. You may need to prioritize important appliances so that your generator can handle the electrical load.

What To Expect From the Runtime of a Whole-Home Generator vs. a Portable Generator

As a homeowner, you can set up a whole-home generator or portable generator. A whole-home generator is generally safer and can run for longer. It’s also more convenient because the generator can automatically switch on to power your entire home.

Portable generators are designed as a temporary solution. Because of this, they aren’t meant to be used for extended periods of time.

What Happens During Extended Florida Power Outages?

Hurricanes can damage power grids and cause fuel shortages. As a result, it can be a while until power is restored. Because of this, it’s essential to have an automatic standby generator before storm season arrives.

How To Make Your Generator Last Longer During an Outage

When a power outage occurs, there are a few things you can do to help your generator last as long as possible.

  • Lower Your Electrical Load: By reducing the number of devices you are using, you can use less fuel and reduce the strain on your unit.
  • Schedule a Tune-up: Through routine maintenance, you can ensure your generator is ready for the next storm and reduce the likelihood that it will break down.
  • Monitor Oil and Fuel: You don’t want your generator to run out of oil or fuel when you need it the most.
  • Call a Professional: When you reach out to a professional for generator services, you can get help diagnosing minor issues before they escalate.

FAQs

Mister Sparky Tampa ElectricianCan a whole-home generator run for a week?

Yes, it can. However, it depends on the generator size, fuel type, fuel availability, maintenance history, and load requirements.

Do generators need breaks during long outages?

Every 8 to 12 hours, it’s a good idea to shut your generator off for 30 minutes. This allows the generator to cool down. Then, you can perform safety checks and verify that the oil level is adequate.

What fuel lasts longest in a standby generator?

Unless there is a disruption to the gas lines, a natural gas generator will generally last the longest. Unlike propane and diesel, natural gas can be automatically replenished by the utility provider. With propane and diesel, a truck must come out to your home and refill the tank once you run out of fuel.

How often does a generator need an oil change?

It oft depends on the generator. You’ll generally need to change the oil after 100 hours of runtime. However, some generators only need an oil change every 200 hours. To find out what your generator requires, check with your manufacturer.

Can a generator power an entire house continuously?

Yes, it can. However, it depends on the load capacity you need and your generator’s capacity.

Is a whole-home generator worth it in Florida?

When storm season arrives, a generator ensures your family is comfortable. No matter how long the outage lasts, your family will have a consistent source of power.

Stay Powered Through Florida’s Storm Season

Before the next outage hits, make sure your home is ready. By booking an appointment with Mister Sparky, you can get a whole-home generator installed in your Lakeland home.

Don’t put up with any malarkey, call Mister Sparky!