Objectives Explain how to implement green fleets Learn about incentives for converting to natural gas fleets Learn about the availability and cost of natural gas Identify the advantages of using natural gas Understand how to safely handle natural gas. Greening of Fleets.
How to Implement Natural Gas
How is Natural Gas Formed?
Figure 1 (left): Factory available Honda Civic CNG passenger car. Source: NAFTC.
Figure 2 (right): Corresponding CNG trunk-mounted tank. Source: NAFTC.
Figure 3: Cutaway of LNG tank showing dual walls and insulation. Source: NAFTC.
Federal Grant Funding
State Grant Funding
Incentives for Natural Gas Production
Figure 4: Natural Gas fueling stations by state. AFDC.
Figure 5: EIA Fuel Price Projections. Source: EIA.
Figure 6: Cost comparison - diesel, gasoline, & compressed natural gas. Source: AFDC.
Natural gas price depends upon:
Things to Consider
Natural Gas Performance Summary
Similar vehicle performance
High octane rating
Cleaner exhaust emissions
Fuel tank size can be large
Limited vehicle fueling stations
Figure 7: Example of LNG tank label. Source: NAFTC.
NFPA Placards and Specifications
Figure 8 (left): NFPA hazard placard for CNG. Source: NFPA.
Figure 9 (right): NFPA 704 hazard placard for LNG. Source: NFPA.
U.S. DOT Placards and Specifications
Figure 10 (left): CNG transport placard for UN 1971. Source: U.S. DOT. Figure 11: LNG transport placard UN 1972. Source: U.S. DOT.
Natural Gas Safety Summary
NGVs must meet stringent safety codes
Safe and durable storage tanks
Exposure causes minimal injury