Lower Churchill Project
The hydroelectric potential of Muskrat Falls and Gull Island make the lower Churchill River in Labrador the best undeveloped hydroelectric source in North America. Together, they have a combined capacity of more than 3,000 megawatts, will be able to provide 16.7 terawatt hours of electricity a year and reduce greenhouse gas emissions equivalent to taking 3.2 million vehicles off the road each year.
The Lower Churchill Project will be developed in two phases: first, Muskrat Falls and then Gull Island.
![]() Phase 1 - Muskrat Falls |
![]() Phase 2 - Gull Island |
Muskrat Falls
The Muskrat Falls development includes three key components:
• 824 megawatt hydroelectric generating facility at Muskrat Falls on the lower Churchill River;
• 1,100 km High Voltage direct current transmission line from Muskrat Falls to Soldiers Pond on the island of Newfoundland;
• 480 km High Voltage direct current Maritime transmission link (planned, financed and constructed by Nova Scotia’s Emera Inc.)
Power from Muskrat Falls will meet the island’s future energy requirements, while also providing sufficient capacity for future industrial developments in Newfoundland and Labrador. More specifically:
• 40% will be used to displace the Holyrood Thermal Generating Station on the island
• 20% will go to Nova Scotia in return for Emera Inc. building the $1.2 billion Maritime Link (Nalcor will have access to 70% of link’s capacity at no cost)
• 40% will be used as needed - either domestically or for export. It’s expected this power will be needed in NL by 2037-2040.
The development of Muskrat Falls will provide four key benefits:
1. Least-cost power for island electricity system
2. Stable electricity rates
3. Long-term benefits and revenue for the province
4. Support for industrial development
Nalcor has completed a significant amount of work to mitigate financial risks. Hydroelectric projects are well understood and Nalcor has completed detailed field and engineering work to support the estimates for the project. All alternatives are subject to cost pressures and risks and Nalcor is taking a best practice approach to managing the project and project risk.
In addition to Muskrat Falls being the least-cost way to meet increasing demand for power, the timing for the Muskrat Falls Project is ideal. Interest rates are low and the federal government has agreed to a loan guarantee. As well, an agreement is in place with the Labrador Innu and a water management agreement has been signed with Churchill Falls (Labrador) Corporation.
Gull Island
Phase Two of the Lower Churchill Project will consist of the development of the 2,250 megawatt Gull Island generation facility and associated transmission to markets. The development of Gull Island will begin at least three years after Muskrat Falls and is expected to take about eight years.
Gull Island will focus primarily on export and potential for industrial growth in Labrador.

