Figure 4. CNG Compression Station at West Farms Depot
The order of 125 hybrid buses was split between two operating depots—Mother Clara Hale Depot and Queens Village Depot. The Mother Clara Hale Depot, shown in Figure 5, has 125,690 square feet of office and maintenance space, indoor parking for buses, and operates 125 buses including 62 hybrids. Every six months, the hybrid buses require a conditioning charge process for the traction batteries (which takes as much as 24 hours) as part of their scheduled maintenance routine. The conditioning is done to help extend the battery pack life to at least three years. The conditioning charger is shown in Figure 6. The cost of each charger unit is $70,000. The depots with the Orion/BAE System hybrid propulsion system are planned to receive at least two of the conditioner units.
Figure 5. Mother Clara Hale Depot