Table 4 Summary of Results from NREL Fuel Cell Bus Evaluations
Table 4 Summary of Results from NREL Fuel Cell Bus Evaluations
| Unit | AC TRANSIT 4/06 - 11/06 40-ft Fuel Cell Hybrid 40-ft Diesel |
VTA 11/04 - 7/06 40-ft Fuel Cell 40-ft Diesel |
SUNLINE 1/06 - 11/06 40-ft Fuel Cell Hybrid 40-ft CNG |
|
|---|---|---|---|---|
| Capital ($ mill) | ||||
| H2 Fuel Station Installation | total | not reported | $ 0.64 | not reported |
| H2 Depot Modifications | total | $ 1.50 | $ 4.40 | $ 0.05 |
| Fuel Cell Bus Purchase | ea | $ 3.20 | $ 3.50 | $ 3.10 |
| Fuel Economy | ||||
| Duty Cycle | MPH | 11.6 | 14.5 | 13.0 |
| Fuel Cell Fuel Economy | mi/kg | 5.50 | 3.12 | 7.3 |
| Fuel Cell Fuel Economy | MPDEG | 6.22 | 3.52 | 8.28 |
| Diesel Fuel Economy | MPG | 4.00 | 3.98 | CNG = 3.32 |
| Fuel Cost | ||||
| Hydrogen Cost | $/kg | $ 8.00 | $ 9.06 | $ 4.26 |
| Diesel Cost | $/gal | $ 2.30 | $ 2.07 | CNG = $1.10 |
| Unit | AC TRANSIT 4/06 - 11/06 40-ft Fuel Cell Hybrid 40-ft Diesel |
VTA 11/04 - 7/06 40-ft Fuel Cell 40-ft Diesel |
SUNLINE 1/06 - 11/06 40-ft Fuel Cell Hybrid 40-ft CNG |
||||
|---|---|---|---|---|---|---|---|
| Fuel Cell | Diesel | Fuel Cell | Diesel | Fuel Cell | CNG | ||
| Maintenance Cost | |||||||
| PMI | $/mi | $ 0.15 | $ 0.08 | $ 0.61 | $ 0.09 | $ 0.05 | $ 0.08 |
| Powerplant | $/mi | $ 0.01 | $ 0.10 | $ 1.54 | $ 0.16 | $ 0.11 | $ 0.05 |
| Drive System | $/mi | $ 0.04 | $ - | $ 0.36 | $ 0.02 | $ 0.06 | $ - |
| Fuel System | $/mi | $ 0.01 | $ 0.02 | $ 0.48 | $ 0.02 | $ - | $ 0.01 |
| TOTAL PROPULSION | $/mi | $ 0.06 | $ 0.12 | $ 2.38 | $ 0.20 | $ 0.17 | $ 0.06 |
| NON-PROPULSION | $/mi | $ 0.54 | $ 0.23 | $ 1.17 | $ 0.34 | $ 0.27 | $ 0.19 |
| TOTAL | $/mi | $ 0.60 | $ 0.35 | $ 3.55 | $ 0.54 | $ 0.44 | $ 0.25 |
NOTES
AC TRANSIT: Fuel cell
maintenance done under warranty - costs not included
Fuel cell bus + 8,000 lb
Van Hool buses.
Fuel cell buses use ISE drive system with ZEBRA batteries
VTA: Warranty parts
costs not included above: $13.29/mi fuel cell; $0.04/mi diesel
Fuel cell bus +
6,800 lb
Fuel station
includes one dispenser and 10 min fill; designed for 6 buses
Fuel station vent and boil off losses ~50%
New Flyer buses.
Fuel cell buses use Ballard drive system
SUNLINE: Fuel cell
maintenance done under warranty - costs not included
Fuel cell bus +
8,000 lb
Van
Hool buses. Fuel cell buses use ISE
drive system with ZEBRA batteries
H2 maintenance
facility is a tent - two bays
For all agencies maintenance costs calculated using $50/hr mechanic labor rate
SOURCES
AC Transit: NREL/TP-560-41041 March 2007
VTA: NREL/TP-560-40615 November 2006
Sunline: NREL/TP-560-41001 February 2007