Measuring real energy performance in a complex business is a key reason Cummins is implementing the international energy management standard ISO 50001 and the U.S. Department of Energy’s Superior Energy Performance (SEP) program.


The nine sites selected for Cummins’ pilot effort represent the complexity of measuring energy improvements across a broad range of site requirements and campus structures, levels of site automation, local climate, changes in market demand, new product launches and restructuring efforts. The nine sites are:

  • The Columbus Engine Plant in Columbus, Indiana (U.S.A).
  • The Cummins Technical Center, in Columbus, Indiana (U.S.A).
  • The Jamestown Engine Plant in Jamestown, New York (U.S.A).
  • The Rocky Mount Engine Plant in Rocky Mount, North Carolina (U.S.A.)
  • The Daventry Engine Plant in Daventry, U.K.
  • The Darlington Engine Plant in Darlington, U.K.
  • Cummins Turbo Technologies in Huddersfield, U.K.
  • Cummins Generator Technologies in Stamford, U.K.
  • Tata Cummins Limited in Jamshedpur, India.

Seven sites are now certified to ISO 50001 and two (the Cummins Technical Center in Columbus and the Rocky Mount Engine Plant) are both ISO 50001 and Superior Energy Performance (SEP) certified.  The company plans to achieve a total of 40 certified sites by 2020.

The Energy Management System, through the company’s Corporate Enterprise approach, recorded a combined energy performance improvement of 20 percent by 2015 from a 2010 baseline for just these nine sites. Annual cost savings were $3.5 million per year and 352,434 MMBTU, or 39,740 metric tons of CO2e (carbon dioxide equivalent) reduction.

It has been challenging to develop valid energy metrics for specific Cummins facilities, and even more difficult to consolidate site data to provide meaningful corporate performance metrics. The company’s enterprise approach to ISO 50001, the SEP program, and its energy toolkits now provide the framework for this effort.