Municipal Affairs and Environment

Registration 1899

Holyrood Thermal Station Diesel Generator Modifications      

Proponent:  Newfoundland and Labrador Hydro

Summary of Environmental Assessment Process

Project Description:

The proponent is proposing to modify the operation of six 1.825 megawatt diesel generators that are presently in service at the Holyrood Thermal Generating Station (HTGS) in Holyrood. These generators were originally installed in January 2014 to provide black start power for the HTGS. These generators were subsequently used in helping alleviate power availability issues on the Avalon Peninsula during the winter of 2016. This project will improve the capability to operate these diesel generators as part of the Island Interconnected System (IIS), if required to meet load requirements during peak demand and possible contingency situations, in addition to continued use for HTGS black start capability. The six diesel generators are each housed within individual mobile trailer enclosures on the HTGS site. The changes required in order to improve the availability and reliability of this system for IIS production include adding new exhaust stacks on each generator and connecting the generators to a new diesel fuel storage tank to be erected near the generators.

  • June 9, 2017 - The undertaking was registered.
  • July 20, 2017 - Deadline for public comments.
  • July 24, 2017 - The Minister's Decision is due.
  • August 4, 2017 - The Minister announced that the project is released.

  • Documents: Public Notices:

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