National Grid’s Amesbury #5 Transformer Removal: A Case Study

#National #grid #Transformer

This presentation will take us through the steps utilized to mitigate the hazardous conditions posed by aging equipment, unstable subsurface, and deteriorating infrastructure at the Amesbury #5 Substation in Amesbury, MA, National Grid’s territory. One of the many challenges facing the electric utility industry in the Northeast US is the maintenance and replacement of equipment which is due for retirement or replacement. The case study of the Amesbury #5 Substation is no different. We will discuss the background of the civil challenges that kicked off the project as well as the engineering studies and mitigation strategies to prevent equipment failure at the site. We will also cover the electrical design process used to maintain electric service reliability to customers served by the substation while creating a solution that removed the imminent risk.

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  Date and Time




  • Date: 16 Aug 2022
  • Time: 06:00 PM to 09:00 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
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  • Co-sponsored by Boston PES
  • Starts 13 August 2022 09:06 AM
  • Ends 16 August 2022 06:00 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
  • No Admission Charge


Jeff Cahill of IEEE


Jeff Cahill, PE, is a Senior Electrical Utility Engineer at Ameresco. He has been working in the energy industry for over 8 years including time in Distribution, Substation, and Renewables. Mr. Cahill received his BSEE from the University of New Hampshire in 2014 and MS in Power Systems Engineering from Worcester Polytechnic Institute in 2019. Jeff is active in the IEEE and serves as the Secretary for the Worcester County Section.
Mr. Cahill is a Professional Engineer (PE) in the state of Massachusetts.