What type of fuel is best?
A: There are many advantages and disadvantages to different types of fuel. Nearly all Generators use either gasoline, diesel, natural gas or propane. The following information will hopefully answer any questions or concerns you may have concerning different fuel sources.
Gasoline:
Advantages:
- Common fuel source – easily obtained
- Increases portability of smaller generators
Disadvantages:
- Highly flammable
- Short shelf life (approximately 12 months)
- Storing large quantities is hazardous
- May not be available during power outages
- Somewhat Expensive ($1.50 to $2.00 per Gallon)
- Inefficient
Propane:
Advantages:
- Long shelf life
- Clean burning
- Easily stored in both large tanks or in smaller 5 – 10 gallon cylinders
- Obtainable during power outages – gas stations may be unable to pump fuel during an area wide outage
Disadvantages:
- Pressurized cylinder of flammable gas
- Fuel system is more complicated (increased possibility of failure)
- Larger tanks are not aesthetically pleasing (unsightly)
- Fuel system plumbing results in higher installation cost
- Somewhat Expensive ($1.60 to $1.80 a gallon)
Natural Gas:
Advantages:
- Unlimited fuel source – refueling not necessary
- Clean burning
- Available during power outages
Disadvantages:
- May be unavailable during natural disasters (earthquakes, etc)
- Lower power output (30% less BTU’s per unit than gasoline)
- Fuel system plumbing results in higher installation cost
- Not available in many areas
Diesel:
Advantages:
- Least flammable fuel source
- Easily obtained
- On site fuel delivery available
Disadvantages:
- 18-24 month shelf life
- Installing large storage tanks raises cost of system
- May not be available during power outages