Taltson Hydroelectricity Expansion

Expanding Taltson will deliver long-term, reliable, clean hydro power for the Northwest Territories, supporting communities, industry growth, and a lower-carbon future.

• Supports a cleaner, more reliable northern power system by expanding hydro capacity and reducing diesel dependence.
• Strengthens long-term energy security for communities and supports future industrial development.
• Creates economic opportunities through construction, operations, and Indigenous partnership models.
• Advances reconciliation through shared planning, co-development, and potential ownership pathways.

• Key Partners: Deninu Kųę́ First Nation, Fort Resolution Métis Government, Fort Smith Métis Council, Hay River Métis Government Council, Łutsel K’e Dene First Nation, Northwest Territories Métis Nation, Salt River First Nation, Yellowknives Dene First Nation, federal departments (NRCan, CIRNAC, Infrastructure Canada).
• Region: South Slave to North Slave transmission corridor
• Status: Planning, partnership development, and technical work. Pre-construction, engineering, and engagement are underway, with updated technical and financial analysis ongoing.
• Phase: Expansion of the existing Taltson hydro system and a transmission line connecting the North Slave.
• Capacity: Existing ~22 MW; proposed 60MW expansion more than doubles capacity for territorial needs.
• Funding: GNWT, with federal engagement underway; previous federal support for feasibility and engineering.

What’s happening now 

• The GNWT is advancing Indigenous partnership discussions on governance and potential ownership models.
• Updated engineering, financial analysis, and system modelling work underway to reflect current costs and power demand.
• Federal briefings and alignment with national clean energy, security, and critical minerals priorities.

Next Steps

• Completing refreshed feasibility work and updated load/demand analysis for prospective customers.
• Advancing formal partnership structures with Indigenous governments.
• Developing updated federal funding proposal 
• Preparing public information updates, technical summaries, and engagement materials.