ENERGY SAVINGS BY REGENERATION ON A PROPOSED ELECTRIFIED RAILROAD BETWEEN HARRISBURG AND PITTSBURGH

Electrification of the railroads in the United States is a viable strategy for conserving oil and improving the efficiency of moving both freight and passengers. One of the prime candidate routes for electrification is the main line of Conrail between Harrisburg and Pittsburgh. Because of the large tonnage and steep grades which occur on this route, it is also a prime candidate for further energy savings by use of regeneration of electrical power. This paper considers the feasibility of using regeneration on the proposed electrification of the main line of Conrail between Harrisburg and Pittsburgh. Locomotives equipped for regeneration convert the braking energy, when operating with trains on down grades, to electrical energy for use by other locomotives hauling trains on the electrified railroad. Energy consumption and energy costs are estimated with and without regeneration. Several distribution system configurations are considered and the sensitivity of regeneration savings to substation spacing, type of distribution system and power contract is investigated. Based upon hauling traffic of 56.8 million gross trailing tons per year in each direction between Harrisburg and Pittsburgh, and at present energy costs, it is estimated that 58,000 MWH of energy and $1.8 million in energy cost can be saved. This represents a 9% energy and a 7% energy cost savings. It is estimated that the cost of a locomotive equipped for regeneration may be about 10% higher than a non-regenerative locomotive; thus, based on a fleet size of 100 6000HP locomotives required for service at $1.1 million each an additional capital expenditure of $11 million would be required.

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 31-40

Subject/Index Terms

Filing Info

  • Accession Number: 00173788
  • Record Type: Publication
  • Source Agency: Institute of Electrical and Electronics Engineers (IEEE)
  • Report/Paper Numbers: 78CH1345-8 IA Tech Pap.
  • Files: TRIS
  • Created Date: May 3 1978 12:00AM