Fuel Type Is One of the Most Important Generator Decisions You'll Make
When shopping for a standby generator in Central New York, one of the first questions you'll face is: what fuel type should I choose? Natural gas, propane, and diesel each have real advantages and real trade-offs. This guide breaks them down so you can make the right call for your home or business.
Natural Gas Generators
Natural gas is the most popular fuel choice for residential standby generators in areas with municipal gas service — and for good reason.
- Pros: Unlimited runtime (piped directly from the utility), no tank to fill or monitor, lower fuel cost per kWh, clean burning, convenient automatic startup
- Cons: Not available in all areas (rural Central NY homes may not have gas service), gas lines can be affected by major disasters, requires a licensed plumber or gas fitter for installation
- Best for: Homeowners with existing natural gas service who want a set-it-and-forget-it whole-home backup solution
Propane Generators
Propane (LP) is the go-to fuel for rural homes and properties without natural gas lines — which covers a significant portion of Oswego, Cayuga, and Madison County homes in Central NY.
- Pros: Available anywhere, long shelf life (propane doesn't degrade like gasoline), high energy density, cleaner than diesel, tank can power extended outages with proper sizing
- Cons: Requires a storage tank (typically 500–1,000 gallons for whole-home standby use), tank must be refilled, propane prices fluctuate seasonally, tank takes up yard space
- Best for: Rural homeowners without natural gas service; properties with existing propane heat
Tank sizing tip: A 20 kW generator running at 50% load consumes roughly 2–3 gallons of propane per hour. A 500-gallon tank (usable capacity ~400 gallons) gives you approximately 5–8 days of continuous runtime. For extended outages common in Upstate NY winters, a 1,000-gallon tank is worth the investment.
Diesel Generators
Diesel is the standard fuel for commercial and industrial standby power. You'll find diesel generators in hospitals, data centers, and large commercial buildings.
- Pros: Excellent fuel efficiency, high power output, extremely reliable under heavy continuous load, long engine life
- Cons: Diesel fuel degrades after 12–24 months (requires additives or rotation), on-site fuel storage and delivery required, higher purchase price, more complex maintenance, not ideal for residential use
- Best for: Commercial facilities, industrial applications, and large properties requiring 30 kW or more of continuous backup power
Quick Comparison Chart
- Natural Gas: Unlimited runtime | Lowest hassle | Best for homes with gas service
- Propane: Days–weeks of runtime | Moderate hassle | Best for rural homes
- Diesel: Days of runtime (tank-limited) | Higher maintenance | Best for commercial
What About Dual-Fuel Generators?
Some portable generators offer dual-fuel capability (gasoline + propane), but true automatic standby generators are dedicated to a single fuel source. For whole-home standby, you'll choose natural gas or propane at installation time based on what's available at your property.
Still Not Sure? We Can Help.
Syracuse Generators serves Counties throughout Central New York. We'll assess your property's fuel availability and recommend the right generator and fuel configuration for your situation. Browse our Air-Cooled Home Standby Generators or contact us for a free consultation.