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NCDOT ALTERNATIVE FUELS PROGRAM by Drew Harbinson, Director NCDOT Equipment & Inventory Contact: Phone 919-733-2220 E- PowerPoint Presentation
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NCDOT ALTERNATIVE FUELS PROGRAM by Drew Harbinson, Director NCDOT Equipment & Inventory Contact: Phone 919-733-2220 E- - PowerPoint PPT Presentation


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NCDOT ALTERNATIVE FUELS PROGRAM by Drew Harbinson, Director NCDOT Equipment & Inventory Contact: Phone 919-733-2220 E-mail dharbinson@dot.state.nc.us OVERVIEW FLEET SIZE AND COMPOSITION TYPES OF ALTERNATIVE FUELS TESTED WHERE WE SEE THE FUTURE: SHORT AND LONG TERM FLEET SIZE AND COMPOSITION

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NCDOT ALTERNATIVE FUELS PROGRAMbyDrew Harbinson, DirectorNCDOT Equipment & InventoryContact: Phone 919-733-2220E-mail dharbinson@dot.state.nc.us

overview
OVERVIEW
  • FLEET SIZE AND COMPOSITION
  • TYPES OF ALTERNATIVE FUELS TESTED
  • WHERE WE SEE THE FUTURE: SHORT AND LONG TERM
fleet size and composition
FLEET SIZE AND COMPOSITION
  • 28,671 Total Light & Heavy Pieces of Construction Equipment
  • 11,942 “On & Off Road” Pieces

71 E-85 Units

7,075 Diesel/Bio-diesel Units

12 Natural Gas Units

234 Propane Units

4,550 Unleaded Gasoline

types of alternative fuels tested
TYPES OF ALTERNATIVE FUELS TESTED
  • METHANOL
      • Experimented with Methanol in the early 1980s.
      • Price was expensive and supply unreliable.
      • Required use of special lubricants to prevent engine damage.
      • Experienced reduced performance.
types of fuels cont d
TYPES OF FUELS CONT’D
  • Electric Powered S-10 Pickups
      • Tried in the early 1990s.
      • First generation technology.
      • Short operational range of approximately 75miles.
      • Performed poorly.
types of fuels cont d6
TYPES OF FUELS CONT’D
  • Propane
      • First used for on road equipment in 1995.
      • Bi-fuel trucks cost approximately $6,000 each more than standard trucks.
      • Dispensing System cost approximately $25,000 each
      • Currently have 7 refueling sites statewide.
      • Fuel availability and cost fluctuates.
      • Currently have 234 F-150 units in the fleet. Ford has now stopped manufacturing bi-fuel propane units.
types of fuels cont d7
TYPES OF FUELS CONT’D
  • Compressed Natural Gas
      • First used in 1996.
      • Additional unit cost comparable to propane units. Approximately $6,000 - $8,000 more.
      • Dispensing System costs approximately $250,000 per site. Currently operating one cascading fast fill site.
      • Performance of units have been satisfactory. Currently have 12 units in the fleet.
types of fuels cont d8
TYPES OF FUELS CONT’D
  • Ethanol
    • E-85 Blend
      • Began using in 1999. Mainly used by the automobile fleet managed by our Department of Administration.
      • Four sites were built in the Raleigh area at a cost of approximately $45,000 each.
      • No additional cost in vehicles.
      • As long as fuel is turned over within approximately 3 months relatively few problems.
      • Performance is satisfactory.
types of fuels cont d9
TYPES OF FUELS CONT’D
  • Ethanol
    • E-10 Blend
      • Began use in 2004.
      • No additional cost for units.
      • No additional cost for dispensing system. Works in current gasoline dispensing system.
      • Will expand use this year significantly to meet requirements to reduce consumption of foreign oil products by 20% by 2010 mandated by our Legislature.
types of fuels cont d10
TYPES OF FUELS CONT’D
  • Bio-diesel
    • B20 Blend
      • Primary focus of Alternative Fuels Program.
      • Since 2003, NCDOT used 5,177,864 gallons of B20. Projected to use 2,500,000 gallons this year.
      • Dispensing system cost conversion is approximately $100 per site (including labor). Requires filter change.
      • Conversion cost of on and off road diesel powered equipment approximately $50 per unit (including labor). Requires fuel filter change after first tank burned.
types of fuels cont d11
TYPES OF FUELS CONT’D
  • Bio-Diesel
    • B20 Blend Cont’d
      • Additional per gallon cost of between $.09 and $.30. On 11/15/05 Diesel cost $1.9304 per gallon. B20 cost $2.0770 a gallon. A difference of $.1466 per gallon.
      • Of the 122 NCDOT diesel fueling sites, 25 are currently converted to B20. Plan to convert 8 additional sites this year.
performance of b20
PERFORMANCE OF B20
  • Keys to a Successful B20 Program
    • Infrastructure Issues
      • Initial Filter replacement on equipment and dispensing system is critical to avoid fuel pump issues.
      • A good tank management program is important, regardless of the type of fuel to avoid algae/bacteria/fungi issues.
      • Turning the inventory of stored fuel within 6 months in both fuel site tanks and equipment fuel tanks is critical.
performance of b2013
PERFORMANCE OF B20
  • Keys to a Successful B20 Program Cont’d.
    • Cultural and Contract Issues
      • Build support from the top down. Educate end-users about the need and the fuel itself.
      • Form a partnership with your procurement officer. May also require some education. Work with the vendor community to help educate purchasing.
      • Insure there is sufficient language to hold the successful vendor(s) responsible for the product they deliver.
      • Restrict the raw product used. Eliminated by specification the use of beef tallow and palm oil due to cold flow issues.
performance of b2014
Performance of B20
  • Keys to a Successful B20 Program Cont’d.
    • Cultural and Contract Issues (CONT’D)
      • Have a two year contract with two one year extensions.
      • Contract utilizes OPIS pricing index and prices are adjusted weekly (every Tuesday).
      • Delivery by transport load is FOB destination to any of our 100 counties. (Pricing was bid by county.)
      • Lesser quantities, vendors can add delivery charge.
      • Specifications must meet all relative ASTM requirements.
performance of b2015
Performance of B20
  • NCDOT SPONSORED RESEARCH PROJECT FINDINGS by NCSU
    • REAL WORLD DUTY CYCLE FINDINGS
      • Concurred with most data collected by EPA on dynamometer tests indicating that CO, HC, and PM were reduced by 11, 21, and 10% respectively.
      • Disagreed with the majority of data reporting a slight increase in NOx of 2-5%. Our findings show that there is a decrease of 10% in NOx levels.
      • Second round of tests are currently being performed using real world duty cycles on “off road” diesel driven construction equipment.
performance of b2016
Performance of B20
  • HAVE COPIES OF THE BID SPECIFICATION AVAILABLE
  • HAVE COPIES OF THE EXECUTIVE SUMMARY OF THE RESEARCH PROJECT.
  • QUESTIONS?