Taltson Hydroelectricity

Taltson Hydroelectricity Expansion Project

The Taltson Hydroelectric Project will expand the existing Taltson generating station and connect the NWT’s hydroelectric systems to provide clean energy to the mineral-rich Slave Geological Province.


  • The Taltson River system has a 200 MW generation potential.
  • Initial expansion will increase capacity from 18 MW to 60 MW.
  • 200 km of transmission lines will connect Taltson to North Slave hydro system.


  1. Connect Taltson to North Slave Hydro System
  2. Provide Hydroelectricity to the Slave Geological Province
  3. Connect Taltson Hydro System to the Southern Electrical Grid


  • A 60 MW expansion of Taltson could remove 240,000 tonnes of GHG emissions annually.
  • Increased generation capacity would help stabilize electricity rates for NWT residents and businesses.
  • The project is part of a full service infrastructure corridor concept (transportation/energy/communications) that would provide clean energy to the mineral-rich Slave Geological Province.
  • The project would provide partnership opportunities for Indigenous governments and job opportunities for Northerners.
  • The run-of-the-river project would require no flooding, mitigating environmental impacts.


  • A study is being conducted on emerging submarine cable technologies that would improve the business case for the project.
  • Electricity markets and project timing are being defined with northern industry and southern stakeholders.
  • Funding and investment opportunities are being pursued.