Riel – Dorsey Line is a 500kV overhead line from Riel Substation, Toronto, Canada, to Dorsey Substation, Toronto, Canada.

Construction works on the Riel – Dorsey Line started in 2019 and the project was commissioned in 2020.


The Riel – Dorsey Line, which is an overhead line, is being operated by Manitoba Hydro-Electric Board . The Riel – Dorsey Line is a new line. The line carries alternating current (AC) through double circuit cable.

Riel – Dorsey Line project development status

The development of the Riel – Dorsey Line project was approved by Alberta Utilities Commission in 2019 and the project works were completed in 2020.

About Manitoba Hydro-Electric Board

Manitoba Hydro-Electric Board (Manitoba Hydro), a Crown Corporation, is an integrated electricity and natural gas distribution utility. It produces electricity using the hydro, thermal and isolated capabilities; and also purchases electricity from external Canadian and US suppliers, and independently owned St. Leon and St. Joseph wind farms and on transmission charges. The company also trades electricity within wholesale markets in the Midwestern US and Canada. Manitoba Hydro procures natural gas from Alberta by a transmission pipeline owned by TransCanada PipeLines Ltd. It serves residential, commercial and industrial customers in the province.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.