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Fredericton South Reliability Project

Fredericton south

The current Transmission and Distribution configuration leaves Fredericton South customers vulnerable to infrequent power interruptions that may last several hours or days to repair. 

Furthermore, transmission capacity limits NB Power’s ability to fully utilise the clean generation from the Mactaquac Dam under certain conditions.  This project will improve transmission capacity and will provide two transmission lines into three key distribution substations in the Fredericton region allowing repairs to a transmission line to be completed with minimal interruption of electricity to customers.

The new line will be constructed adjacent to the existing line within the existing right of way. It will run from the Rainsford Substation (on Rainsford Lane, in Fredericton) to the Mactaquac Terminal.


  • Improved reliability for 25,000 customers in Fredericton South with fewer interruptions that can be restored in minutes rather than within hours or days.
  • Reduced line losses mean less wasted energy – an estimated 11,350 MWh saved annually -which is the equivalent of driving 5000 electric vehicles across Canada.
  • This will allow for less spillage at the Mactaquac Generating Station, meaning more renewable energy will be available to customers.

Before it can proceed, NB Power must register this proposed project for an Environmental Impact Assessment with the provincial Department of Environment and Local Government.

Below is a timeline for the proposed project:

Project Activities Timelines

Engagement with First Nations and Stakeholders


Traditional Land and Resource Use Study

Summer 2019 – Summer 2020

First Nation and Public Open Houses

August-September 2019

Environmental Impact Assessment Submission (available for public review) and permit

Fall 2019

Line Clearing/Construction

Spring 2021-Fall 2022

Substation and terminal modifications

April 2022 – October 2022


November 2022