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Gas vs Diesel Cost

Fuel Economics ยท Engine Comparison ยท Operating Costs

Fuel Cost Comparison Calculator
Compares natural gas vs diesel operating costs for compressors, generators, and prime movers. Calculates fuel consumption, COโ‚‚ emissions, and payback period for fuel switching. Uses EIA heating values (138,500 Btu/gal diesel, 1,020 Btu/scf gas) and EPA emission factors.

Engine Specifications

HP
%
hrs/yr

Fuel Prices

$/gal
$/Mcf
Btu/scf

Thermal Efficiency

%
%

Typical: Diesel 35-42%, Rich-burn gas 28-35%, Lean-burn gas 32-38%

Maintenance & Investment

$/hp-hr
$/hp-hr
$
%

Frequently Asked Questions

How do you compare natural gas vs diesel fuel costs?

Compare costs by converting both fuels to a common energy unit (BTU or kWh) and factoring in equipment efficiency for power generation or compression applications.

What applications use gas vs diesel cost comparison?

Gas vs diesel cost comparisons are commonly used for power generation and compression applications in the midstream oil and gas industry.

Is natural gas cheaper than diesel for power generation?

Natural gas is typically cheaper than diesel on an energy-equivalent basis, but the actual savings depend on local fuel prices and equipment efficiency.