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Cal on February 13th, 2017

Direct Current (DC) Supergrids are appearing in China, India. Europe and Brazil. Long-distance ultra-high-voltage direct-current (UHVDC) connectors are now transmitting electricity over thousands of kilometres more efficiently than AC or alternating current. China began building these transmission facilities in 2010 and is currently has one under construction that will carry 12 gigawatts (half the average power use of Spain) over 3,400 […]

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