Diesel & Natural Gas Fuel Consumption Tables

Choosing between diesel and natural gas generators is one of the most critical decisions when designing a reliable backup power solution. Our expertly compiled Diesel and Natural Gas Fuel Consumption Tables empower customers to make the most informed choice possible—based on real-world data, fuel usage efficiency, and total cost of ownership for various industrial, agricultural, and commercial applications. Whether you're running a cannabis facility, dairy operation, data center, construction site, or remote energy system, understanding your fuel consumption needs is essential for maximizing operational uptime and minimizing long-term energy costs. American Energy Solutions (AES) is the trusted leader in backup power systems and is here to guide you every step of the way—from initial planning to final implementation. Let AES help you choose the right generator fuel type tailored precisely to your environment, application, and budget. This resource-packed chart is optimized to serve facility managers, energy consultants, procurement officers, and contractors searching for reliable, affordable, and efficient generator options. Trust AES to deliver unmatched expertise, performance, and peace of mind.

Fuel Consumption Tables
Generator Size (kW) 1/4 Load (gal/hr) 1/2 Load (gal/hr) 3/4 Load (gal/hr) Full Load (gal/hr)
20 0.6 0.9 1.3 1.6
30 1.3 1.8 2.4 2.9
40 1.6 2.3 3.2 4
60 1.8 2.9 3.8 4.8
75 2.4 3.4 4.6 6.1
100 2.6 4.1 5.8 7.4
125 3.1 5 7.1 9.1
135 3.3 5.4 7.6 9.8
150 3.6 5.9 8.4 10.9
175 4.1 6.8 9.7 12.7
200 4.7 7.7 11 14.4
230 5.3 8.8 12.5 16.6
250 5.7 9.5 13.6 18
300 6.8 11.3 16.1 21.5
350 7.9 13.1 18.7 25.1
400 8.9 14.9 21.3 28.6
500 11 18.5 26.4 35.7
600 13.2 22 31.5 42.8
750 16.3 27.4 39.3 53.4
1000 21.6 36.4 52.1 71.1
1250 26.9 45.3 65 88.8
1500 32.2 54.3 77.8 106.5
1750 37.5 63.2 90.7 124.2
2000 42.8 72.2 103.5 141.9
2250 48.1 81.1 116.4 159.6
Generator Size (kW) 1/4 Load (ft³/hr) 1/2 Load (ft³/hr) 3/4 Load (ft³/hr) Full Load (ft³/hr)
20 157 188 247 289
30 202 260 348 416
40 246 333 449 543
60 334 479 652 798
75 400 588 803 990
100 510 771 1056 1308
125 621 953 1308 1627
135 665 1026 1409 1754
150 731 1135 1561 1946
175 841 1317 1813 2264
200 952 1500 2066 2583
230 1084 1718 2369 2965
250 1172 1864 2571 3220
300 1393 2229 3076 3857
350 1614 2593 3581 4495
400 1834 2958 4086 5132
500 2276 3687 5096 6407
600 2717 4416 6107 7681
750 3379 5509 7622 9593
1000 4482 7332 10147 12780
Diesel vs Natural Gas vs Gasoline Generators: Best Fuel Type for Backup Power

Diesel vs Natural Gas vs Gasoline Generators: Best Fuel Type for Backup Power

Choosing the right fuel source for your generator can make or break your backup power system. Whether you're running a stationary generator for your facility or a mobile unit for field operations, selecting between diesel, natural gas, and gasoline comes down to your energy needs, environment, and fuel access.

Diesel Generators

  • Highly efficient and durable under heavy loads
  • Longer engine life and lower fuel consumption
  • Ideal for industrial generators and mobile power applications
  • Common in agriculture, mining, and construction industries

Natural Gas Generators

  • Clean-burning and quiet operation with lower emissions
  • Best for stationary generators with utility gas access
  • Reduces fuel storage requirements and supports grid-tied systems
  • Excellent for commercial buildings, hospitals, and municipalities

Gasoline Generators

  • Convenient and portable for small, short-term needs
  • Widely available fuel makes it practical for emergency power
  • Less fuel-efficient than diesel or natural gas
  • Best for light-duty mobile generators and residential use

For long-term, high-demand operations, diesel generators deliver unmatched reliability. Natural gas is the top choice for clean, continuous power in fixed locations. Gasoline offers flexibility for portable use, though it's best for low-hour runtimes.

At American Energy Solutions, we help customers across industries choose the best backup power systems tailored to their fuel availability, load demand, and application—ensuring reliable power when it matters most.

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