Natural Gas vs. Propane vs. Diesel: Choosing the Right Generator Fuel

Choosing the right fuel type for your standby generator is an important decision. Each option has advantages and disadvantages depending on your situation and location.

Natural Gas

**Pros:** - Unlimited runtime (connected to gas utility) - No fuel storage required - Lower operating cost per kilowatt-hour - No fuel delivery needed - Burns cleaner than diesel

**Cons:** - Requires natural gas service at your home - Lower energy density than propane or diesel - May not be available in rural areas - Gas pressure can drop during widespread outages

**Best for:** Homes with existing natural gas service in Florence, Muscle Shoals, and other city areas.

Propane (LP Gas)

**Pros:** - Available everywhere (no utility required) - Stores indefinitely (unlike gasoline or diesel) - Burns clean - Higher energy density than natural gas - Tank can be buried for aesthetics

**Cons:** - Requires a storage tank (500-1000 gallons typical) - Must be refilled by delivery truck - Higher operating cost than natural gas - Tank takes up yard space

**Best for:** Rural homes without natural gas service throughout Lauderdale, Colbert, and Lawrence counties.

Diesel

**Pros:** - Highest energy density - Most fuel-efficient per kilowatt - Widely available - Long engine life

**Cons:** - Fuel degrades over time (6-12 month shelf life) - Requires fuel polishing or rotation - Louder operation - Higher maintenance costs - Exhaust emissions

**Best for:** Commercial applications or homes with very high power demands.

Dual-Fuel Options

Some generators can run on both natural gas and propane. This provides flexibility and backup if one fuel source becomes unavailable.

Our Recommendation for the Shoals Area

For most homes in Florence, Muscle Shoals, Sheffield, and Tuscumbia: **natural gas** if available, **propane** if not.

For rural properties in Lauderdale, Colbert, and Lawrence counties: **propane** with a 500+ gallon tank.

For commercial applications: **natural gas** with diesel backup.

Installation Considerations

The fuel type affects installation cost: - Natural gas: Requires a gas line extension ($500-$2,000) - Propane: Requires tank installation ($1,500-$3,000 for a 500-gallon tank) - Diesel: Requires a fuel tank and containment ($1,000-$2,500)

We handle all fuel connections as part of the generator installation package.