Generator Refueling Service

When you need emergency backup power during an outage or help powering equipment at remote worksites, generator refueling services provide on-site fuel delivery and filling for your generators. They’re designed to ensure your generator never runs dry, minimizing the risk of costly downtime and damage.

Here’s how the process typically goes:

• Consultation Planning: Our pre-approved fuel service provider will work with you to understand your generator type, power consumption, and operational requirements. This conversation helps us determine the appropriate fuel type, quantity, and delivery schedule for your facility’s generator.
• Fuel Delivery Refueling: Our mission is to always keep your generator adequately fueled and prepared for anything. Once an agreed-upon refueling schedule is set, we’ll deliver the fuel and refill your generator accordingly. For on-demand or emergency refueling situations, Global Power Supply will deploy a fueling technician to your location as soon as possible.
• Remote Monitoring Detection: At Global Power Supply, we can use modern technology to track and manage your generator’s fuel levels, alert you when it’s time for another delivery, and, ultimately, keep your facility prepared for potential power disruptions. Our system can also monitor the overall health of your entire backup power system and help catch small issues before they turn into big problems.

Yes. Global Power Supply provides nationwide generator refueling services for diesel generators. Whether you’re in a major metro area or managing a remote site, we can deliver the fuel you need directly to your location.

Thanks to our in-house logistics team and trusted fuel partners across the U.S., Global Power Supply can coordinate fast, reliable refueling nearly anywhere in the country. We support critical operations in industries like healthcare, data centers, construction, agriculture, and emergency response (where downtime isn’t an option).

If you’re searching for a local generator refueling service, Global Power Supply has you covered with custom solutions, flexible scheduling, and 24/7 support.

No. Global Power Supply only refuels diesel generators. Since natural gas generators run off pipeline gas, they don’t traditionally operate from a refillable fuel tank. Now, some natural gas generators will automatically switch to a separate on-site liquid propane source if their usual supply is disrupted. In these cases, the liquid propane tank would need to be professionally refueled.

While diesel generators are more commonly used for backup systems, natural gas units are often preferred for long-term or prime power use because they offer a continuous fuel supply, cleaner emissions, and lower operating costs for extended runtimes. GPS supports diesel-powered generators with comprehensive delivery logistics, safety protocols, and fuel system knowledge vast enough to ensure that your equipment is refueled safely and effectively every time.

Not sure what type of generator you have or what it needs? Our team can assess your system and recommend the right refueling plan for your setup. Contact us today to learn more.

At Global Power Supply, we deliver a variety of fuel types to support different generator systems and industry requirements. The most common fuel types we offer include:

• Diesel: The most widely used fuel for standby and backup generators
• Propane: Common in dual-fuel systems or where natural gas infrastructure is limited
• Dual-fuel systems: Allow generators to switch between diesel and natural gas or propane for flexibility and extended runtime

Whether you operate a single site or manage multiple locations, our team can help evaluate your fuel requirements. We’ll also ensure every delivery meets strict safety and regulatory standards.

Global Power Supply services a wide range of generator sizes, from smaller commercial units to large-scale industrial systems exceeding 2,000 kW. In fact, we often sell and service a large number of 3,250 kW generators. Our team is equipped to handle fueling, maintenance, and logistics at any scale.

We regularly support:

• Standby generators for retail, telecommunications, and construction sites
• Mid-range generators for office buildings, warehouses, and manufacturing plants
• Large prime or backup systems for utility, oil & gas, data centers, hospitals, and critical infrastructure applications

If you’re unsure whether your generator falls within our service range, reach out to our team. We’ll assess your equipment and design a fueling solution that fits your power profile.

Fuel degradation is one of the most common causes of generator failure, especially in systems that sit idle for long periods. High-quality generator refueling services go beyond just topping off the tank. They actively help you preserve fuel integrity, reduce the risk of contamination, and extend your equipment’s life.

At Global Power Supply, we support long-term fuel health through:

• Proper storage and handling protocols to prevent water intrusion and microbial growth
• Regular inspections to spot issues like oxidation or fuel stratification (a condition where fuel separates into layers, leading to poor combustion and equipment damage)
• Fuel polishing and filtration services (when needed) to clean and restore stored fuel
• Custom fueling schedules based on your facility’s runtime, usage patterns, and environment

Whether you run diesel, propane, or dual-fuel systems, keeping your fuel clean and stable is essential to ensuring your generator performs well when you need it most.

If your generator can’t go empty, we won’t let it.

At Global Power Supply, we offer both scheduled and on-demand refueling for diesel generators of all sizes. Our team handles the entire process safely and efficiently, including fuel delivery, top-off, compliance checks, and if needed, fuel quality testing. For long-term applications, we can also monitor usage patterns and implement proactive refueling plans tailored to your operation.

Whether you need us during a power outage or on a routine fueling cycle, we make sure your generator is always ready to run.

This depends on your fuel type, generator size (and application), and project runtime — but in general:

• Backup generators: Should be refueled after every use and inspected monthly.
• Prime power units: May require refueling every few days to weekly, depending on load and fuel tank size.
• Routine servicing: Typically recommended every 100–200 hours of operation,or every 6 months, whichever comes first. Service needs are ultimately based on usage, operating environment, and manufacturer recommendations.

Global Power Supply will work with you to build a fueling and service management schedule based on your generator type, operating hours, and uptime needs, so your system stays operational for longer.

Skipping routine service on your generator can lead to:

• Fuel contamination and clogging
• Battery failure or starter issues
• Overheating from low coolant or oil
• Full system shutdown during an outage
• Shortened generator lifespan
• Safety hazards such as carbon monoxide leaks and fire risks
• Costly repairs from complete component replacements or engine seizures

Without regular inspections and refueling, your generator may fail when you need it most. By offering proactive service plans and a consistent fuel supply tailored to your system, Global Power Supply keeps downtime off your schedule (and off your balance sheet).

No, you should never refuel a generator while it’s running or still hot. Always shut it down, let it cool completely, and avoid spilling any fuel onto hot components. This helps prevent fuel vapors from catching fire on hot engine parts.

By Global Power Supply standards, our fuel delivery professionals will always:

• Shut down the generator safely.
• Wait until the engine and exhaust have cooled.
• Refuel the unit only when it’s at a safe temperature.

Safety hazards like this are exactly why you should hire a reliable fuel service provider to handle your backup power systems.

Yes. Global Power Supply specializes in nationwide emergency power response, extending mobile generator deployment and fuel delivery services to remote, off-grid sites and during high-risk weather conditions. In most urgent cases, GPS has the logistics and resources to ensure you get the power you need.

Please note: When extreme weather or a similar emergency causes government-enforced road closures, Global Power Supply is unable to deliver fuel for safety reasons. However, we do our best to work around these rare situations.

Yes. Global Power Supply supplies fuel tank rentals for temporary or mobile power needs, as well as custom fuel system solutions for aging or damaged tanks. We can also design custom fuel tanks for new generators or as replacements for existing fuel tanks. Global Power Supply has extensive experience meeting fuel tank codes in all 50 states.

Whether you’re setting up a new job site or upgrading an existing system, we provide compliant, properly sized fuel tanks to match your generator and runtime requirements. Our team can also handle delivery, installation, and removal, so you can stay focused on operations — not logistics.