Orange County Transportation Authority Fuel Cell Electric .
Orange County Transportation AuthorityFuel Cell Electric Bus Progress ReportData Period Focus: Feb. 2020 through Jul. 2020Leslie Eudy and Matthew PostMarch 2021NREL/PR-5400-78250
Table of ContentsIntroduction .Fleet Profile .Results Summary .Evaluation Buses Specification . Infrastructure Description .Data Summary .Fleet Mileage Accumulation . Availability Analysis .Fuel Economy and Cost Analysis .Reliability—Miles Between Roadcall .Maintenance Cost Analysis Contacts Acronyms and Abbreviations.Appendix: Fleet Summary Statistics . .45814161720233038409697100NREL 2
IntroductionThis report presents early results from a deployment of fuel cell electric buses (FCEBs) operated byOrange County Transportation Authority (OCTA) in Southern California. The ten FCEBs, produced byNew Flyer, feature an electric drive propulsion system powered by a Ballard fuel cell system. Theproject team is collaborating with the U.S. Department of Energy (DOE) and DOE’s NationalRenewable Energy Laboratory (NREL) to evaluate the buses in revenue service.The goal of this evaluation is to compare the FCEB performance to that of conventional technologyand to track progress over time toward meeting the technical targets set by DOE and theDepartment of Transportation (DOT). The FCEBs were delivered beginning in late-2019, and wereplaced in service on February 9, 2020. The data period covers February 2020 through July 2020.NREL collects data on ten 2016 model year compressed natural gas (CNG) buses as a baselinecomparison at OCTA.Each NREL evaluation tracks data and performance results for a specific transit agency operating a specific manufacturer’stechnology design. Results from different OEM designs will vary and are not necessarily representative of a specifictechnology. Results also will vary from agency to agency and even between facilities within the same agency. Readersshould keep this in mind when using these results for decision making.NREL 3
Results SummaryBus fleets: This evaluation includes ten 40-ft FCEBs built by New Flyer with an electric propulsionsystem and a Ballard fuel cell system. The baseline buses are ten 2016 model year New Flyer 40-ftCNG buses.Bus use: OCTA’s average speed for its operation is around 17 mph. The agency reduced service inMarch 2020 due to the COVID-19 pandemic.Fuel economy and cost: The FCEBs had an average fuel economy of 8.67 miles per kilogram ofhydrogen, which equates to 9.79 mpdge. The CNG buses had an average fuel economy of 3.8mpgge, which equates to 4.24 mpdge. The FCEB fuel economy was approximately 2.3 times thatof the CNG buses. Average hydrogen costs were 8.10/kg; CNG cost was 1.22/gge. The FCEBshad an average fuel cost of 0.93 per mile. The fuel cost for the CNG buses averaged 0.32 permile.Fuel use: During the data period, OCTA fueled its FCEB fleet more than 883 times with an averagefill amount if 18.96 kg. Daily dispensed hydrogen was 95 kg.mpdge miles per diesel gallon equivalentmpgge miles per gasoline gallon equivalentNREL 4
Results Summary (continued)Availability: The average availability for the FCEB fleet was 73.6%. Most unavailable time for theFCEBs was due to general bus-related problems followed by battery issues. This is not unusual fora new design in its first deployment. OCTA is working with the OEM to identify the issues. Theavailability for the fleet is expected to increase over time as these early issues are resolved. Theaverage availability for the fuel cell system was 97.3%. OCTA reports that its CNG bus availabilityaverages 80% or better.Maintenance cost: The cost to maintain the buses in the data period was 0.42/mi for the FCEBsand 0.43/mi for the CNG buses. Propulsion-system maintenance was 0.14 for the FCEBscompared to 0.16 for the CNG buses.Note that the FCEBs are under warranty and most repairs are covered by the OEM. Much of thecost is labor to troubleshoot issues.NREL 5
Fleet ProfileThe Orange County Transportation Authority―OCTA― is Orange County California’s transportationagency, responsible for planning, financing andcoordinating the county’s freeway, street and raildevelopment, as well as managing countywide busand paratransit service, rail service, and the 91Express Lanes. The agency’s 62 fixed bus routesinclude local, community, express, and railconnection service. The service area for OCTA covers34 cities and unincorporated Orange County,California.OCTA website: http://www.octa.net/default.aspx.NREL 6
Evaluation BusesVehicle SystemNumber of busesBus manufacturer/modelModel yearBus purchase cost* ( )Length/width/heightCurb weight (lb.)GVWR (lb.)Hybrid systemFuel cell or engineEnergy storageAccessoriesFuel capacityFCEB10New Flyer, Xcelsior20181.3 M41 ft/102 in./129.6 in.33,50044,533Siemens ELFA2, PermanentElectronic Motor, 210 kWCNG10New Flyer, Xcelsior2016580,00040 ft/102 in./130.8 in.30,00042,290Ballard FCvelocity-HD85,85 kWCummins Westport ISL G280 hp @ 2,200 rpmA123 Systems, lithium-ion,100 kWhElectricGaseous hydrogen, 5 Type 4composite cylinders,Agility Fuel Solutions,37.5 kg at 5,000 psiN/AFCEBCNGN/AElectric and MechanicalCNG, 6 cylinders,Lincoln Composites156 gge at 3,600 psi* Cost includes OCTA equipment,such as information technologyequipment.NREL 7
Infrastructure DescriptionOCTA’s fueling station provides fuel to the FCEB fleet through liquid hydrogen deliveryand storage. The new station was built in 2019 – fully commissioned in April of thatyear. The station includes an 18,000-gallon cryogenic storage tank. Two hydrogendispensers, installed in line with the CNG fueling island, allow the FCEBs to be handledthe same as the CNG bus fleet. Pre-cooling units operate at 10 C to help achieve a fullfill without overheating the tanks.NREL 8
Data SummaryData ItemFCEBCNG10102/20–7/202/20–7/2066Total mileage in data period149,148281,694Average odometer21,131202,357Average monthly mileage per bus2,7204,695Total FCPPa hours11,434—Availability (85% is target)73.6 85Fuel economy (FCEB mi/kg or CNG mpggeb)8.673.80Fuel economy (mpdgec)9.794.24Miles between roadcalls (MBRC) – busd7,12431,299MBRC – propulsion system onlyd7,87446,949MBRC – FC System onlyd74,802—Total maintenance ( /mile)0.420.43Maintenance – propulsion system only ( /mile)0.140.16Number of busesData periodNumber of monthsFCPP fuel cell power plantMiles per gasoline gallon equivalent.c Miles per diesel gallon equivalent.d MBRC for the FCEB data cumulative from the clean point of February 2020 through July 2020.abNREL 9
uel Cell HoursFCEB Total Miles and HoursTotalsMiles 149,604Hours 11,4340FC HoursNREL 10
Fleet Average Monthly Miles by 15,5141120FCEB Fleet 2928,6275830CNG Fleet 281,694BusMonths666666666660Bus 1119 was being used for upgrade/testing during the early data period. Clean point is July 94,4784,3544,2634,5174,7714,695NREL 11
Average Monthly Miles6,0005,000Overall FCEB 2,720 CNG CEBMay-20Jun-20CNGNREL 12
Availability AnalysisAvailability, which is a measure of reliability, is presented as the percentage of days the buses areactually available out of days that the buses are planned for passenger service. Buses available forservice may have been used in passenger service, training, or for special events, or they may have beenavailable but just not used. Buses unavailable for service may have had issues with the propulsionsystem (fuel cell system, electric drive system), general bus maintenance, or undergoing scheduledmaintenance. Accidents are removed from the data—the bus is considered “not planned” during therepair time.The data presented are based on availability for morning pull-out and don’t necessarily reflect all-dayavailability. Transit agencies typically have a target of 85% availability for their fleets to allow for time tohandle scheduled and unscheduled maintenance. For OCTA, NREL calculates availability based on theplanned service days, which are typically every day. OCTA provides daily bus availability for the FCEBsand a reason for unavailability. Reasons for availability are based on the current open work orders. Insome cases, a bus is down for multiple reasons. For those days, the unavailability reason is split betweencategories. For example, if a bus has open work orders for both general bus repair and PM, eachcategory would be credited for 0.5 unavailable days.NREL presents availability as a monthly average trend and as overall availability. Unavailable time isseparated into several categories to show the primary reason for downtime.NREL 13
Availability SummaryCategoryPlanned work daysDays availableDays unavailableFuel cell systemElectric driveBattery relatedGeneral bus maintenancePreventive maintenance (PM)FCEB # Days1,5971,17542243.78.090.8213.566.0FCEB %73.626.42.70.55.713.44.1CNG baseline bus fleet availability is 80% or greaterNREL 14
Availability %Monthly Availability1009080706050403020100Feb-20FCEB TotalMar-20Apr-20FCPP onlyMay-202016 TargetJun-20Jul-20Ultimate TargetNREL 15
Number of days unavailableFCEB Monthly Unavailability Reasons1009080706050403020100Feb-20FC SystemMar-20Electric DriveApr-20May-20Battery RelatedJun-20General Bus RepairJul-20PMNREL 16
FCEB Overall AvailabilityFC al BusRepair13.4%PM4.1%Available73.6%NREL 17
Fuel Economy and Cost AnalysisSunLine provides individual fueling records for the FCEBs and CNG buses. CNG istypically dispensed in units of gge. NREL uses these records to calculate the CNG fueleconomy in mpgge as well as mpdge. Hydrogen is tracked in kilograms; 1 kg ofhydrogen has essentially the same energy content as a gallon of gasoline. To comparethe fuel economy of the FCEBs to that of the baseline buses, NREL converts kghydrogen to dge.Conversions:gge CNG * 0.895 dgekg H2 * 0.885 dgeOCTA provides monthly cost of hydrogen per kg and CNG per therm.The average cost of hydrogen during the evaluation period was 8.10/kg. The CNG fuelcost for the data period was 1.22 per gge.NREL 18
Fuel Economy by 710.389.7610.479.639.698.769.67FCEB Fleet145,14816,745.58.6714,819.09.79 FuelMiles perCNG (gge)CNG (dge) 766,452.84.20583028,6277,787.33.686,969.64.11CNG Total281,69474,193.93.8066,403.54.24FCEB fuel economy is 2.31 times that of the CNG buses.NREL 19
20CNGJun-20Jul-20Temperature (F)Fuel Economy (mpdge)Monthly Average Fuel EconomyAvg High Temp **Average monthly high temperatures at John Wayne Airport in Santa Ana, CA. Data acquired from www.ncdn.noaa.govNREL 20
Monthly Average Fuel Cost Per Mile1.20Fuel Cost ( /mi)1.00Average fuel cost H2 8.10 /kg CNG 1.22 /gge0.800.60Average cost per mile H2 0.93 CNG Jul-20CNGNREL 21
Fleet Hydrogen Use40002520300025001520001015001000OverallDaily kg Hydrogen: 95.14H2 kg/fill: 18.9655000kg per fillHydrogen Fuel (kg)3500Feb-20Mar-20Apr-20Hydrogen dispensedMay-20Jun-20Jul-200Average kg/fillNREL 22
Roadcall AnalysisA roadcall or revenue vehicle system failure is defined as a failure of an in-service bus that causesthe bus to be replaced on route or causes a significant delay in schedule. If the problem with thebus can be repaired during a layover and the schedule is kept, this is not considered a roadcall.The analysis described here includes only roadcalls that were caused by “chargeable” failures.Chargeable roadcalls include systems that can physically disable the bus from operating on route,such as interlocks (doors, air system), engine, or things that are deemed to be safety issues ifoperation of the bus continues. They do not include roadcalls for things such as problems withradios, fareboxes, or destination signs.The transit industry measures reliability as mean distance between failures, also documented asMBRC. NREL tracks MBRC by total roadcalls, propulsion-related roadcalls, and fuel cell (FC)system-related roadcalls. Total roadcalls includes all chargeable roadcalls. “Propulsion-relatedroadcall” is a subset of total roadcalls and includes all roadcalls due to propulsion-related systemsincluding the FC system (or engine for a conventional bus), electric drive, fuel, exhaust, air intake,cooling, non-lighting electrical, transmission systems, and hydraulics. The FC system-relatedroadcalls, a subset of the propulsion-related roadcalls, and MBRC are included for the FCEBs.NREL 23
Cumulative 0FCEB MBRC BusApr-20May-20CNG MBRC BusJun-20Jul-20Bus Ultimate TargetBus MBRCPropulsionMBRCFC 00Feb-20FCEB MBRC PropulsionMar-20Apr-20FCEB MBRC Fuel CellMay-20CNG MBRC PropulsionJun-20Jul-20FC System Ultimate TargetNREL 24
Maintenance AnalysisNREL collects all work orders for the evaluation buses to calculate a maintenance cost per mile. Costs foraccident-related repairs which are extremely variable from bus to bus, were eliminated from the analysis.Warranty costs are not included in the cost-per-mile calculations because those costs are covered in thecapital cost of the buses. For consistency, NREL uses a constant 50 per hour. This does not reflect anaverage rate for OCTA. Cost per mile is calculated as follows:Cost per mile [(labor hours * 50) parts cost)] / mileageNREL calculates total cost per mile, scheduled maintenance cost per mile, and unscheduled maintenancecost per mile. NREL also categorizes maintenance cost by system to provide insight into which systems havethe most costs for each technology. Parts for scheduled maintenance, such as filters and fluids, are includedin the specific system categories. For example, oil and oil filters are included in the power plant (engine)subsystem parts costs, while air filters are included in the air intake subsystem parts costs.The propulsion system costs are of particular interest. Propulsion-related vehicle systems include theexhaust, fuel, engine, FC system, battery modules, electric propulsion, air intake, cooling, non-lightingelectrical, transmission systems, and hydraulics. These systems have been separated to highlightmaintenance costs most directly affected by the advanced propulsion system changes for the buses.NREL 25
Maintenance Analysis ResultsBusMileageParts ( )LaborhoursTotal Cost perMile ( 1117111811191120FCEB FleetBusMileageParts ( )LaborhoursTotal Cost perMile ( 400.530.35149,60410,303.41 1,037.00.42CNG Fleet281,69453,403.571,347.80.43Note: the FCEBs are under warranty, while the CNG buses are not under warranty.NREL 26
0.900.900.800.800.700.700.600.60Cost ( /mi)Cost ( /mi)Scheduled and Unscheduled Maintenance b-20Mar-20FCEB scheduledApr-20May-20FCEB unscheduledJun-20Cumulative /miJul-200.00Feb-20Mar-20CNG scheduledApr-20May-20CNG unscheduledJun-20Jul-20Cumulative /miNREL 27
0.900.900.800.800.700.700.600.60Cost ( /mi)Cost ( /mi)Parts and Labor Maintenance 00Feb-20Mar-20Apr-20FCEB PartsMay-20FCEB LaborJun-20Jul-20Feb-20Mar-20Apr-20CNG PartsMay-20Jun-20Jul-20CNG LaborNREL 28
Maintenance Cost by SystemThe vehicle systems include the following: Propulsion-related systems—Repairs for exhaust, fuel, engine, electric motors, fuel cellmodules, battery modules, propulsion control, non-lighting electrical (charging, cranking, andignition), air intake, cooling, hydraulics, and transmission Cab, body, and accessories—Includes body, glass, and paint repairs following accidents; caband sheet metal repairs on seats and doors; and accessory repairs such as hubodometers andradios PMI (preventive maintenance inspections)—Labor for preventive maintenance Brakes Frame, steering, and suspension Heating, ventilation, and air conditioning (HVAC) Lighting Axles, wheels, and drive shaft Air system, general TiresNREL 29
Maintenance Cost per Mile by SystemFCEBSystemPropulsion-relatedCab, body, and accessoriesPMIBrakesFrame, steering, and suspensionHVACLightingAir, generalAxles, wheels, and drive shaftTiresTotal CNGCost perMile ( )Percent ofTotal (%)Cost perMile ( )Percent ofTotal 7.326.511.718.40.91.12.50.90.30.3100Color coding:Highest costSecond highest costThird highest costFor the FCEB fleet, the systems with the highest cost were propulsion-related; cab, body, and accessories; andPMI. For the CNG fleet, the systems with the highest cost were propulsion-related; cab, body, and accessories;and brakes.Overall costs for the FCEBs are similar to that of the CNG buses.NREL 30
Maintenance Cost by System: FCEBsNREL 31
Maintenance Cost by System: CNG BusesNREL 32
Propulsion-Related Maintenance Costs by SubsystemMaintenance SystemMileageTotal PropulsionRelated Systems(Total of all systems intable)Exhaust SystemFuel SystemPowerplant System(Fuel Cell System forFCEBs)Electric PropulsionSystemParts cost ( )Labor hoursTotal cost ( )Total cost ( ) per mileParts cost ( )Labor hoursTotal cost ( )Total cost ( ) per mileParts cost ( )Labor hoursTotal cost ( )Total cost ( ) per mileParts cost ( )Labor hoursTotal cost ( )Total cost ( ) per mileParts cost ( )Labor hoursTotal cost ( )Total cost ( ) per 0.00.000.000Maintenance SystemFCEB44.37Parts cost ( )Non-Lighting Electrical23.0System (General Electrical, Labor hoursCharging, Cranking,1,194.37Total cost ( )Ignition)Total cost ( ) per mile 0.00884.13Parts cost ( )0.0Labor hoursAir Intake System84.13Total cost ( )Total cost ( ) per mile 0.00110.30Parts cost ( )9.5Labor hoursCooling System485.30Total cost ( )Total cost ( ) per mile 0.0030.00Parts cost ( )0.0Labor hoursTransmission System0.00Total cost ( )Total cost ( ) per mile 0.0000.00Parts cost ( )0.0Labor hoursHydraulic System0.00Total cost ( )Total cost ( ) per mile .0280.000.00.000.000Parts cost include items regularly replaced as part of scheduled maintenance. Scheduled parts make up 90% of the FC System partsNREL 33
ContactsNRELLeslie EudyPhone: 303-275-4412Email: leslie.eudy@nrel.govOrange County Transportation AuthorityCliff ThornePhone: 714-560-9975Email: cthorne@octa.netNREL 34
Acronyms and gcompressed natural gasdiesel gallon equivalentU.S. Department of Energyfuel cellfuel cell electric busfeetFederal Transit Administrationgasoline gallon equivalentgross vehicle weight ratinghorsepowerheating, ventilation, and emphNRELPMPMIpsikilowattkilowatt-hourpoundmiles between roadcallsmilemiles per diesel gallon equivalentmiles per gasoline gallon equivalentmiles per hourNational Renewable EnergyLaboratorypreventive maintenancepreventive maintenance inspectionpounds per square inchNREL 35
AcknowledgmentsThis work was authored by the National Renewable Energy Laboratory, operated byAlliance for Sustainable Energy, LLC, for the U.S. Department of Energy (DOE) underContract No. DE-AC36-08GO28308. Funding was provided by the U.S. Department ofEnergy Office of Energy Efficiency and Renewable Energy Fuel Cell Technologies Office.The views and opinions of the authors expressed herein do not necessarily state orreflect those of the United States Government or any agency thereof. Neither theUnited States Government nor any agency thereof, nor any of their employees, makesany warranty, expressed or implied, or assumes any legal liability or responsibility forthe accuracy, completeness, or usefulness of any information, apparatus, product, orprocess disclosed, or represents that its use would not infringe privately owned rights.NREL 36
Appendix:Fleet Summary Statistics
Fleet Summary StatisticsNumber of vehiclesPeriod used for fuel and oil analysisTotal number of months in periodFuel and oil analysis base fleet mileagePeriod used for maintenance analysisTotal number of months in periodMaintenance analysis base fleet mileageAverage monthly mileage per vehicleAvailabilityFleet fuel usage in kg hydrogen or gge CNGRoadcallsTotal MBRCPropulsion roadcallsPropulsion MBRCFleet mi/kg hydrogen (FCEB), mi/gge (CNG)Representative fleet mpg (energy equiv.)Fuel cost per kg hydrogen or gge CNGFuel cost per mileTotal scheduled repair cost per mileTotal unscheduled repair cost per mileTotal maintenance cost per mileTotal operating cost per 06281,6944,695 80.4290.751NREL 38
Maintenance Cost SummaryMaintenance Cost SummaryFleet mileageTotal parts costTotal labor hoursAverage labor cost (@ 50.00 per hour)Total maintenance costTotal maintenance cost per busTotal maintenance cost per 079.110.429Propulsion System Maintenance Cost SummaryFCEBTotal Engine/Fuel-Related Systems (ATA VMRS 27, 30, 31, 32, 33, 41, 42, 43, 44, 45, 46, 65)5,761.87Parts cost292.50Labor hours14,625.00Average labor cost20,386.87Total cost (for system)2,038.69Total cost (for system) per bus0.136Total cost (for system) per 156NREL 39
Maintenance Cost by Vehicle SystemExhaust System (ATA VMRS 43)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per mileFuel System (ATA VMRS 44)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per milePower Plant (Engine) (ATA VMRS 45)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per ,850.0013,334.921,333.490.047NREL 40
Maintenance Cost by Vehicle SystemFCEBElectric Propulsion (ATA VMRS 46)1,344.02Parts cost137.0Labor hours6,850.00Average labor cost8,194.02Total cost (for system)819.40Total cost (for system) per bus0.055Total cost (for system) per mileElectrical System (ATA VMRS 30-Electrical General, 31-Charging, 32-Cranking, 33-Ignition)44.37Parts cost23.0Labor hours1,150.00Average labor cost1,194.37Total cost (for system)119.44Total cost (for system) per bus0.008Total cost (for system) per mileAir Intake System (ATA VMRS 41)84.13Parts cost0.0Labor hours0.00Average labor cost84.13Total cost (for system)8.41Total cost (for system) per bus0.001Total cost (for system) per 03NREL 41
Maintenance Cost by Vehicle SystemCooling System (ATA VMRS 42)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per mileHydraulic System (ATA VMRS 65)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per mileGeneral Air System (ATA VMRS 10)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per 04NREL 42
Maintenance Cost by Vehicle SystemBrake System (ATA VMRS 13)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per mileTransmission (ATA VMRS 27)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per mileInspections Only - No Parts Replacements (101)Parts costLabor hoursAverage labor costTotal cost (for system)Total cost (for system) per busTotal cost (for system) per 3,850.0013,850.001,385.000.049NREL 43
Maintenance Cost by Vehicle SystemFCEBCab, Body, and Accessories Systems (ATA VMRS 02-Cab and Sheet Metal, 50-Accessories, 71-Body)2,975.38Parts cost397.0Labor hours19,850.00Average labor cost22825.4Total cost (for system)2,282.54Total cost (for system) per bus0.153Total cost (for system) per mileHVAC System (ATA VMRS 01)130.05Parts cost31.0Labor hours1,550.00Average labor cost1680.0Total cost (for system)168.00Total cost (for system) per bus0.011Total cost (for system) per mileLighting System (ATA VMRS 34)4.16Parts cost15.5Labor hours775.00Average labor cost779.2Total cost (for system)77.92Total cost (for system) per bus0.005Total cost (for system) per 50.003005.5300.550.011NREL 44
Maintenance Cost by Vehicle SystemFCEBFrame, Steering, and Suspension (ATA VMRS 14-Frame, 15-Steering, 16-Suspension)123.42Parts cost14.5Labor hours725.00Average labor cost848.4Total cost (for system)84.84Total cost (for system) per bus0.006Total cost (for system) per mileAxle, Wheel, and Drive Shaft (ATA VMRS 11-Front Axle, 18-Wheels, 22-Rear Axle, 24-Drive Shaft)0.00Parts cost14.5Labor hours725.00Average labor cost725.0Total cost (for system)72.50Total cost (for system) per bus0.005Total cost (for system) per mileTire (ATA VMRS 17)0.00Parts cost4.0Labor hours200.00Average labor cost200.0Total cost (for system)20.00Total cost (for system) per bus0.001Total cost (for system) per 001NREL 45
Fleet Summary Statistics: SI UnitsNumber of vehiclesPeriod used for fuel and oil analysisTotal number of months in periodFuel and oil analysis base fleet kilometersPeriod used for maintenance analysisTotal number of months in periodMaintenance analysis base fleet kilometersAverage monthly kilometers per vehicleAvailabilityFleet fuel in FCEB kg/CNG LRoadcallsTotal KBRCPropulsion roadcallsPropulsion KBRCRepresentative fleet fuel consumption (L/100 km)H2 cost per kg/ CNG cost per literFuel cost per kmTotal scheduled repair cost per kmTotal unscheduled repair cost per kmTotal maintenance cost per kmTotal operating cost per kmFCEB10Feb-Jul 20206233,587Feb-Jul 4.018.1000.5810.0890.1700.839CNG10Feb-Jul 20206453,330Feb-Jul 20206453,3307,555 .1980.466NREL 46
Maintenance Cost Summary: SI UnitsMaintenance Cost SummaryFleet mileageTotal parts costTotal labor hoursAverage labor cost (@ 50.00 per hour)Total maintenance costTotal maintenance cost per busTotal maintenance cost per 9112,079.110.266Propulsion System Maintenance Cost SummaryFCEBTotal Engine/Fuel-Related Systems (ATA VMRS 27, 30, 31, 32, 33, 41, 42, 43, 44, 45, 46, 65)5,761.87Parts cost292.50Labor hours14,625.00Average labor cost20,386.87Total cost (for system)2,038.69Total cost (for system) per bus0.085Total cost (for system) per .440.097NREL 47
www.nrel.govNREL/PR-5400-78250This work was authored by the National Renewabl
The Orange County Transportation Authority―OCTA ― is Orange County California’s transportation agency, responsible for planning, financing and coordinating the county’s freeway, street and rail development, as well as managing countywide bus and paratransit service, rail service, and the 91 Express
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Apr 25, 2012 · Orange County Transportation Authority (OCTA) SR-91 Express Lanes Ellen Lee Principal Transportation Analyst 550 S. Main St. P.O. Box 14184 Orange, CA 92863-1584 (714) 560-5988 elee@octa.net Orange County Transportation Authority (OCTA) SR-91 Express Lanes - Cofiroute Gar
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