Sept. 25, 2012 | Martin B. Sennett, General Manager CNG: Energy of the Future?
Sept. 25, 2012 | Martin B. Sennett, General Manager CNG: Energy of the Future?
Dec 18, 2015
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Sept. 25, 2012 | Martin B. Sennett, General Manager
CNG: Energy of the Future?
Cost of Bus
Type of Bus Price
Standard Diesel $400,000
Hybrid Diesel/Electric $600,000
Compressed Natural Gas (CNG)
$450,000
Cost of FuelType of Fuel Price
Diesel $3.11/gallon
CNG with station $2.20/DGE
CNG without station
$1.50/DGE
Historical Price of Diesel
Year Price/gallon % Increase
2007
$2.05 --
2008
$3.06 49.3%
2009
$3.26 6.6%
2010
$2.25 -31%
2011
$2.92 29.8%
2012
$3.12 6.9%
Average Increase
$2.05 to $3.12
10.4% (average over 5 years)
Additional CostsType of Bus Capital Operating
Standard Diesel
None Urea after treatment
Hybrid Diesel/Electric
$150K mid-life to rebuild
Urea after treatment
CNG $2 million fueling station + $19K mid-life to rebuild
No after treatment
Hybrid Diesel Electric Option
Year % Diesel Buses
% Hybrid Buses
# of Hybrid
2012
73% 27% 20
2015
51% 49% 30
2019
42% 58% 42
2023
27% 73% 53
2027
16% 84% 61
Hybrid Bus PurchasesYear Hybrid Bus Hybrids
PurchasedEng/
Tran RebuildTotal Capital
2013 $630,000 4 0 $2,520,000
2015 $694,575 2 0 $1,389,150
2019 $844,260 2 0 $1,688,521
2023 $1,026,204 2 $655,636 $2,708,043
2027 $1,247,357 2 $737,924 $3,232,638
Total for 15 years 41 $5,335,402 $46,400,000
15 Year Fuel Cost with Hybrid Option
Year Diesel Miles
Hybrid Miles
Diesel Gallons
Hybrid Gallons
Cost Per
Gallon Diesel
Total Annual
Cost
2012 1,306,849
493,151 311,155 89,664 $3.11 $1,246,545
2019 912,329 887,671 217,221 1,619,395
$4.99 $1,850,000
2027 517,808 1,282,192
123,288 233,126 $8.85 $2,950,000
Total for 15 Years $31,600,000
CNG Option
Year # Hybrid # CNG # Diesel
2012
20 0 53
2015
20 13 40
2019
20 29 24
2023
10 45 18
2027
0 65 8
National Renewable Energy Laboratory Report
The following 6 charts
are from this report.
Energy Information Administration (EIA) - Official Energy Statistics from the U.S. Government.
Fuel Consumption with CNG Option
Year Diesel Miles
Hybrid Miles
CNG Miles
Diesel Gallons
Hybrid Gallons
CNG (DGE)
Gallons
2012 1,306,849
493,151
0 311,155 89,664 0
2019 591,781 493,151
715,068 140,900 89,664 174,407
2027 197,260 0 1,602,740
46,967 0 390,912
15 Year Fuel Cost(without financing)
Year Cost Per
Gallon Diesel
Total Diesel Cost
Cost Per Gallon (DE)
Total CNG Cost
Total Fuel Cost
2012 $3.11 $1,246,545 0 0 $1,246,545
2019 $4.99 $1,106,654 $2.25 $419,683 $1,526,337
2027 $8.58 $705,254 $3.87 $1,372,404
$2,077,658
Total for 15 Years $25,348,156
15 Year Fuel Cost (with financing)
Year Cost Per Gallon Diesel
Total Diesel Cost
Cost Per Gallon (DGE)
Total CNG Cost
Total Fuel Cost
2012 $3.11 $1,246,545 0 0 $1,246,545
2019 $4.99 $1,151,432 $3.35 $583,560 $1,734,992
2027 $8.58 $403,002 $5.75 $2,247,351 $2,650,354
Total for 15 Years $29, 758,153
CNG Capital CostsYear CNG Bus Cost CNG
PurchasedEng/Tran Rebuild
Total Capital
2013 $472,500 7 0 $3,307,500
2015 $520,931 3 0 $1,562,794
2019 $633,195 4 0 $2,532,781
2023 $769,653 4 $174,836 $3,253,447
2027 $935,518 5 $196,780 $4,874,368
Total for 15 years 65 $1,422,774 $46,089,867
SummaryOptions 15 Year
Fuel CostCapital Cost Additional
Op. Costs
Hybrid Diesel
$31,600,000
$46,400,000
?
CNG Option
1
$29,800,000
$46,089,867
None
CNG Option
2
$25,350,000
$48,089,867
None
www.gocitybus.comwww.facebook.com/gocitybusTwitter: @gocitybus
Internship available!Contact:Martin B. [email protected]
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