Montana-Alberta tie line now fully operational

subscribe

In September 2013, the Montana-Alberta Tie Line MATL became fully operational. MATL is a 230 kilovolt “merchant inter-tie”—a transmission line owned by private investors Enbridge—that connects the Alberta Interconnected Electric System AIES to the NorthWestern Energy power grid system in Montana.

MATL is AlbertaÂ’s first merchant inter-tie and the provinceÂ’s first interconnection to the U.S. Alberta electricity consumers will not bear the cost of constructing or operating this line.

Inter-ties are transmission interconnections between neighboring electric systems that allow power to be imported and exported. Alberta currently has two other interconnections with neighboring jurisdictions—an inter-tie to Saskatchewan capable of importing and exporting 153 megawatts MW, and a larger inter-tie to B.C. that, under current reliability limits, can transfer 700 MW for import and 735 MW for export.

MATL has the capacity to import and export approximately 300 MW between Montana and Alberta. The line is 345 km long, with the Canadian portion stretching approximately 123 km between the U.S. and the new Picture Butte substation in the Lethbridge area.

The addition of MATL to the AIES will bring more diversity to AlbertaÂ’s electricity supply and will help support the development of wind generation.

The new line will be primarily used to import electricity from Montana. Initially there will be few exports on it due to limited access from Montana to the Pacific NorthwestÂ’s connection. Alberta has been a net importer of electricity for 16 of the last 17 years.

Related News

COVID-19 Response: Electric Power Industry Closely Coordinating With Federal Partners

WASHINGTON - The nation’s investor-owned electric companies, public power utilities, and electric cooperatives are working together to protect the energy grid and ensure continued access to safe and reliable electricity during the COVID-19 global health crisis.

The electric power industry has been planning for years for an emergency like the COVID-19 pandemic, as well as countless other types of emergencies, and the industry is coordinating closely with government partners through the Electricity Subsector Coordinating Council (ESCC) to ensure that organizations have the resources they need to keep the lights on.

The ESCC is holding high-level coordination calls twice a week with senior…

READ MORE
saskpower building

Sask. Party pledges 10% rebate on SaskPower electricity bills

READ MORE

Japan opens part of last town off-limits since nuclear leaks

READ MORE

PG&E Wildfire Assistance Program Accepting Applications for Aid

READ MORE

nuclear power

A new nuclear reactor in the U.S. starts up. It's the first in nearly seven years

READ MORE