Hydro-Québec’s electricity transmission system (also known as the Quebec interconnection) is an international power transmission system centred in Quebec, Canada.The system pioneered the use of very high voltage 735 kV alternating current (AC) power lines that link the population centres of Montreal and Quebec City to distant hydroelectric power stations like the Daniel-Johnson Dam and the …
https://en.wikipedia.org/wiki/Hydro-Qu%C3%A9bec%27s_electricity_transmission_system

