Modular Power Solutions

Generator Fuel Tanks & UL-Rated Fuel Storage Solutions

Custom base and sub-base fuel tanks engineered to support continuous power.

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Protected. Integrated.
Generator Fuel Tanks for Backup & Industrial Power Systems

Mission Critical Group (MCG) designs and delivers generator fuel tanks engineered to support backup and prime power systems across data centers, utilities, healthcare, and industrial environments.

Factory-built and fully integrated, our solutions help ensure reliable fuel supply, continuous operation, safe storage, and resilient power continuity for mission critical infrastructure.

UL Fuel Tanks
Industrial Fuel Tanks
Sub-Base Fuel Tanks
Containment & Safety

UL 142 & UL 2085 Fuel Tanks

Built to code. Built to perform.

MCG provides UL 142 fuel tanks and UL 2085 fuel tanks designed for safe, compliant fuel storage in demanding applications.

  • UL 142 diesel fuel tanks
  • UL 2085 fuel tanks
  • Double-wall fuel tanks
  • Code-compliant storage solutions

Commercial & Industrial Fuel Storage Tanks

Scalable fuel infrastructure for critical sites.

Our industrial fuel storage tanks support large-scale deployments and mission critical operations where uptime depends on reliable on-site fuel capacity.

  • Commercial generator fuel tank systems
  • Industrial fuel storage tanks
  • Horizontal fuel storage tanks
  • Vertical fuel storage tanks

Sub-Base Fuel Tanks for Generators

Integrated. Space-saving. Efficient.

MCG delivers sub-base fuel tanks for generators designed to sit beneath generator systems, helping reduce footprint and simplify installation.

  • Diesel generator sub-base fuel tank options
  • Generator sub-base fuel tank integration
  • Compact fuel storage for critical power sites

Fuel Tank Containment & Safety Systems

Engineered for protection.

MCG fuel tanks can include integrated containment systems built to support safety, compliance, and environmental protection.

  • Double-wall construction
  • Fuel tank containment dikes
  • Leak detection and monitoring
  • Secondary containment solutions

 

UL Fuel Tanks

UL 142 & UL 2085 Fuel Tanks

Built to code. Built to perform.

MCG provides UL 142 fuel tanks and UL 2085 fuel tanks designed for safe, compliant fuel storage in demanding applications.

  • UL 142 diesel fuel tanks
  • UL 2085 fuel tanks
  • Double-wall fuel tanks
  • Code-compliant storage solutions
Industrial Fuel Tanks

Commercial & Industrial Fuel Storage Tanks

Scalable fuel infrastructure for critical sites.

Our industrial fuel storage tanks support large-scale deployments and mission critical operations where uptime depends on reliable on-site fuel capacity.

  • Commercial generator fuel tank systems
  • Industrial fuel storage tanks
  • Horizontal fuel storage tanks
  • Vertical fuel storage tanks
Sub-Base Fuel Tanks

Sub-Base Fuel Tanks for Generators

Integrated. Space-saving. Efficient.

MCG delivers sub-base fuel tanks for generators designed to sit beneath generator systems, helping reduce footprint and simplify installation.

  • Diesel generator sub-base fuel tank options
  • Generator sub-base fuel tank integration
  • Compact fuel storage for critical power sites
Containment & Safety

Fuel Tank Containment & Safety Systems

Engineered for protection.

MCG fuel tanks can include integrated containment systems built to support safety, compliance, and environmental protection.

  • Double-wall construction
  • Fuel tank containment dikes
  • Leak detection and monitoring
  • Secondary containment solutions

 

Why MCG Fuel Tanks
Fuel Where You Need It, When You Need It

MCG designs fuel tanks for generators that support continuous operation, extended runtime, and high-demand power environments.

Single-Source Delivery
Single-Source Delivery

Engineering, fabrication, and integration aligned

Code-Compliant Solutions
Code-Compliant Solutions

UL 142 and UL 2085 fuel tanks built for demanding applications

Accelerated Deployment
Accelerated Deployment

Factory-built systems reduce installation time

Scalable Manufacturing
Scalable Manufacturing

U.S.-based production for multi-site rollouts

OUR PRODUCTS
Explore Our Modular Solutions

E-house
E-Houses
Generator Enclosure
Generator Enclosures
Solar Cells
Microgrids
Generator Housing
Mission Critical Power Units (MCPU)
Modular Data Center
Modular Data Centers
Electrical Equipment
Turnkey Projects

FAQs
Generator Fuel Tanks

What Is a Generator Fuel Tank?

A generator fuel tank stores diesel or other fuel used to support backup or prime power generators during outages, peak demand, or continuous operation.

What Is the Difference Between UL 142 and UL 2085 Fuel Tanks?

UL 142 fuel tanks are standard above-ground storage tanks. UL 2085 fuel tanks provide enhanced protection, including greater fire resistance, for more demanding applications.

What Are Fuel Tanks for Generators Used For?

Fuel tanks for generators provide on-site fuel storage to help ensure reliable generator operation and longer runtime.

What Is a Sub-Base Fuel Tank?

A sub-base fuel tank is installed beneath a generator to combine equipment and fuel storage into one compact footprint.

Are Generator Fuel Tanks Double Wall?

Many generator fuel tanks are available in double-wall configurations to provide secondary containment and improve safety.

Does MCG Manufacture Fuel Tanks in the U.S.?

Yes. MCG designs and manufactures generator fuel tanks in the U.S. with scalable production capabilities.

What Industries Use Industrial Fuel Storage Tanks?

Industrial fuel storage tanks are used in data centers, utilities, healthcare, manufacturing, and energy infrastructure.

Do Fuel Tanks Include Containment Systems?

Yes. MCG fuel tanks can include containment dikes, leak detection, and other safety features designed to support compliance and environmental protection.

Let Us Design the Right Fuel Tank for You

Need reliable fuel storage for your power systems? Let’s build your generator fuel tank solution.

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