Converting the worlds power lines to DC would cost terabucks and save terawatts. it would allow for a global energy grid with all its load balancing advantages.

the premier global strategy is the interconnection of electric power networks between regions and continents into a global energy grid, with an emphasis on tapping abundant renewable energy resources – a world wide web of electricity.

2016-11-14: Asia Super Grid

Entrepreneurs in China, South Korea, Russia, and Japan have signed a Memorandum of Understanding that seeks to create the Asia Super Grid. It will transmit electrical power from renewable sources from areas of the world that are best able to produce it to consumers in other parts of the world. The idea is dependent on development of an ultra-high voltage grid operating at 1000 kilovolts AC and 800 kilovolts DC over 1000s of kilometers. It envisions interconnecting grids across regions, nations, and even continents with a capacity of 10 gigawatts.

2022-01-04: This doesn’t make a lot of sense for the reasons explained in this video: Huge cost for the grid, red tape.

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