zero emission bus technology challenges fall... · zero emission bus technology challenges ....
TRANSCRIPT
ZERO EMISSION BUS TECHNOLOGY CHALLENGES
Lifecycle Cost Modeling
and the problem with electric rates
Steve Miller Chair California Transit Association Zero Emission Bus Task Force
CTA Annual Fall Conference – November 19, 2015
Critical Analysis
Lifecycle Cost Model (LCCM)
Infrastructure Rolling Stock
Fuel Maintenance
Lifecycle Cost
Lifecycle Cost Model
Has never been an easy task More difficult for ZEB Particularly challenging for Battery Electric Important to the success of your project Critically important to the Advanced Clean Transit (ACT) discussion
Assumptions: Coaches Purchased FY2017: 67 40 Foot
10% PURCHASE REQUIREMENT ANALYSIS - 20 YEAR PROJECTION Coaches Purchased FY2025: 23 45 Foot
Coaches Purchased FY2027: 32 45 Foot Including Cost of Capital and Inflation Coaches Purchased FY2029: 25 45 Foot
Coaches Purchased FY2031: 67 40 Foot
CURRENT PRICE MODEL Discount Rate: 3.0%
Inflation Rate: 2.0% Diesel Current Price - Inflation Only
Hydrogen Current Price- Inflation Only
Diesel Hybrid FCB
Bus Purchase Cost 40' 500,000 720,000 1,200,000
Bus Purchase Cost 45' 650,000 900,000 1,400,000
Fuel Cost 2.11 2.11 9.10
Fuel Station O&M 1.43
Compression Electrical
Projected MPG/MPkg 4.00 5.00 6.40
Annual Mileage 40' Bus 43,000 43,000 43,000
Annual Mileage 45' Bus 28,000 28,000 28,000
Projected Maint Cost/Mile 0.84 0.71 1.33
Results: Projected Fuel Cost/Mile 0.53 0.42 1.65
Projected Total Cost/Mile 1.37 1.13 2.98
Annual Fuel Cost 40' Bus 22,682.50 18,146.00 70,748.44
Annual Fuel Cost 45' Bus 14,770.00 11,816.00 46,068.75
Annual Maint Cost 40' Bus 36,120.00 30,530.00 57,190.00
Annual Maint Cost 45' Bus 23,520.00 19,880.00 37,240.00
FY2017 FY2018 FY2019 FY2020 FY2021 FY2022 FY2023 FY2024 FY2025 FY2026 FY2027 FY2028 FY2029 FY2030 FY2031 FY2032 FY2033 FY2034 FY2035 FY2036 FY2037
Diesel 40' 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67
Diesel 45' 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80
Diesel Option (Base) Buses 33,500,000 17,516,308 25,355,084 20,608,929 44,202,539
Contract Spares 1,005,000 525,489 760,653 618,268 1,326,076
5307 Funding (27,604,000) (14,433,438) (20,892,589) (16,981,758) (36,422,892)
Fuel 2,701,328 2,755,354 2,810,461 2,866,670 2,924,004 2,982,484 3,042,134 3,102,976 3,165,036 3,228,336 3,292,903 3,358,761 3,425,936 3,494,455 3,564,344 3,635,631 3,708,344 3,782,511 3,858,161 3,935,324 4,014,031
Total NPV 2017 Maintenance 4,301,640 4,387,673 4,475,426 4,564,935 4,656,233 4,749,358 4,844,345 4,941,232 5,040,057 5,140,858 5,243,675 5,348,549 5,455,520 5,564,630 5,675,923 5,789,441 5,905,230 6,023,334 6,143,801 6,266,677 6,392,011
209,643,401 156,258,835 13,903,968 7,143,027 7,285,887 7,431,605 7,580,237 7,731,842 7,886,479 8,044,208 11,813,452 8,369,194 13,759,726 8,707,310 13,126,895 9,059,085 18,345,990 9,425,072 9,613,574 9,805,845 10,001,962 10,202,001 10,406,041
Hybrid Option Diesel 40' 67 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Diesel 45' 80 80 80 80 80 80 80 80 80 57 57 25 25 0 0 0 0 0 0 0 0
Hybrid 40' 0 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67 67
Hybrid 45' 0 0 0 0 0 0 0 0 0 23 23 55 55 80 80 80 80 80 80 80 80
Buses 48,240,000 24,253,349 35,107,039 28,535,440 63,651,656
Contract Spares 1,447,200 727,600 1,053,211 856,063 1,909,550
5307 Funding (39,749,760) (19,984,760) (28,928,200) (23,513,203) (52,448,964)
Fuel 2,701,328 2,445,330 2,494,236 2,544,121 2,595,003 2,646,903 2,699,842 2,753,838 2,808,915 2,783,896 2,839,574 2,778,832 2,834,409 2,795,564 2,851,475 2,908,505 2,966,675 3,026,009 3,086,529 3,148,259 3,211,224
Total NPV 2017 Maintenance 4,301,640 4,005,652 4,085,765 4,167,481 4,250,830 4,335,847 4,422,564 4,511,015 4,601,235 4,593,207 4,685,071 4,633,944 4,726,623 4,703,437 4,797,506 4,893,456 4,991,325 5,091,152 5,192,975 5,296,834 5,402,771
197,767,021 148,893,605 16,940,408 6,450,982 6,580,001 6,711,602 6,845,834 6,982,750 7,122,405 7,264,853 12,406,340 7,377,103 14,756,695 7,412,776 13,439,333 7,499,001 20,761,222 7,801,961 7,958,000 8,117,160 8,279,504 8,445,094 8,613,995
Annual
Cost/Savings (3,036,440) 692,045 705,886 720,004 734,404 749,092 764,074 779,355 (592,888) 992,091 (996,970) 1,294,534 (312,437) 1,560,084 (2,415,233) 1,623,111 1,655,573 1,688,685 1,722,459 1,756,908 1,792,046
Cumulative
Cost/Savings(NPV) (3,036,440) (2,364,552) (1,699,186) (1,040,281) (387,773) 258,400 898,300 1,531,987 1,063,955 1,824,311 1,082,471 1,477,248 1,798,533 2,860,874 1,264,121 2,305,934 3,337,633 4,359,315 5,371,078 6,373,017 7,365,230
Diesel 40' 67 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60
Diesel 45' 80 80 80 80 80 80 80 80 80 77 77 73 73 72 72 72 72 72 72 72 72
FCEB 40' 0 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
10% ZEB Purchase Requirement FCEB 45' 0 0 0 0 0 0 0 0 0 3 3 7 7 8 8 8 8 8 8 8 8
Fuel Cell Option Buses 38,400,000 20,152,541 25,026,369 21,560,111 106,086,093
Contract Spares 1,152,000 604,576 750,791 646,803 3,182,583
5307 Funding (31,641,600) (16,605,694) (20,621,728) (17,765,531) (87,414,940)
Fueling Station 10,000,000 6,341,209
Building Modification 1,500,000
Utility Upgrades 1,000,000
Fuel 2,701,328 3,098,545 3,160,516 3,223,726 3,288,201 3,353,965 3,421,044 3,489,465 3,559,254 3,742,654 3,817,507 4,049,521 4,130,512 4,253,610 4,338,682 4,425,456 4,513,965 4,604,245 4,696,329 4,790,256 4,886,061
Total NPV 2017 Maintenance 4,301,640 4,538,113 4,628,875 4,721,452 4,815,881 4,912,199 5,010,443 5,110,652 5,212,865 5,366,312 5,473,638 5,651,348 5,764,375 5,897,410 6,015,359 6,135,666 6,258,379 6,383,547 6,511,218 6,641,442 6,774,271
260,023,506 195,172,949 27,413,368 7,636,657 7,789,391 7,945,178 8,104,082 8,266,164 8,431,487 8,600,117 12,923,542 9,108,966 14,446,577 9,700,869 20,677,478 10,151,021 32,207,776 10,561,122 10,772,344 10,987,791 11,207,547 11,431,698 11,660,332
Annual
Cost/Savings (13,509,400) (493,631) (503,503) (513,573) (523,845) (534,322) (545,008) (555,908) (1,110,091) (739,772) (686,852) (993,559) (7,550,583) (1,091,935) (13,861,786) (1,136,050) (1,158,771) (1,181,946) (1,205,585) (1,229,697) (1,254,291)
Cumulative
Cost/Savings(NPV) (13,509,400) (13,988,653) (14,463,253) (14,933,245) (15,398,675) (15,859,585) (16,316,021) (16,768,025) (17,644,341) (18,211,314) (18,722,396) (19,440,165) (24,735,991) (25,479,546) (34,643,820) (35,373,007) (36,095,114) (36,810,211) (37,518,365) (38,219,644) (38,914,114)
NREL Battery-Electric Evaluations
Electric Bus Fuel Cost?
Demand Metered time of use (TOU) rates Currently under temporary tariff programs CPUC Resolutions Future Electric Bus Charging Rates Uncertain
Over 43% of Bill is Demand Charges
One Bus - Fast Charge 500kW
Miles/Month 4000 kWh/mile 2.5
Demand Charge Max Peak 500 kW @ $19.04 $9,520.00 Max Part Peak 500 kW @ $4.42 $2,210.00 Max Demand 500 kW @ $14.38 $7,190.00
Total Demand Charges $18,920.00
Energy Charge Peak 3333 kWh @ $0.16233 $541.05 Part Peak 3333 kWh @ $0.10893 $363.06 Off peak 3333 kWh @ $0.07397 $246.54
Total Electricity Charges $1,150.65
Total $20,070.65 Per Mile $5.02
Assumptions: 4,000 miles/month/bus 2.5 kWh/mile 500 kW Fast Charging Charging Equally Distributed Throughout Demand Period
$1
$2
$3
$4
$5
1 6 12 7 13 18 19
Elec
tric
ity C
ost p
er M
ile
Number of Buses
500kWh Fast Charge Buses PG&E E19S Demand Metered TOU Service
Charging Periods Equally Distributed – Peak, Partial Peak, and Off Peak
2nd Charger 3rd Charger 4th Charger
100kWh Slow Charge Buses PG&E E19S Demand Metered TOU Service
Assuming One Charger for Each Bus
$1
$2
PEAK = $1.24/mile
PARTIAL PEAK = $.74/mile
OFF PEAK = $.54/mile
Current Deal - SCE
CPUC Resolution E-4514 SoCal Edison public agency electric bus customers Electric rate schedule TOU-GS-1 Summer Peak $.40 kWh ($1.00/mile) Winter Off Peak $.10 kWh ($.25/mile) Expires December 18, 2015
EV-6 Rate is being developed Final and interim rates/kWh Unknown
Current Deal – PG&E
CPUC Resolution E-4628 PG&E public agency electric bus customers Electric rate schedule A-1 Option B Summer Peak $.248 kWh ($.62/mile) Winter Off Peak $.149 kWh ($.37/mile) Three year event triggered Application period expires September 30, 2016
Final and interim rates/kWh Unknown
The Problem
CPUC resolutions were intended for early adoption only Investor-owned utilities need to recover costs High infrastructure costs need to be offset by low fuel costs Can demand costs be socialized?
Stakeholders
California Energy Commission California Public Utilities Commission California Air Resources Board Public Transit Agencies Investor-Owned Utilities People Who Breathe
Conversation needs to happen now!
caltransit.org/advocacy/key-issues/zero-emission-bus-regulation
Steve Miller Director of Maintenance Golden Gate Transit
http://www.arb.ca.gov/msprog/bus/bus.htm