World : Macro Grids May Be the Future of Renewable Energy


While micro grids are in the public eye as a solution to power remote communities with solar, wind and other forms of renewable energy, the transformative potential of macro grids utilizing vast electric lines often falls off the radar.

Projects slowly mushrooming all over the world are poised to revolutionize the way we transport clean electricity from the places where it’s produced to where it’s needed the most, solving the problem of intermittent power supply that still holds back the mass deployment of renewable infrastructure.

For example, a single solar panel installed on a family home may produce too much electricity if it’s sunny and too little when it rains. On a much larger scale, macro grids could help solve this problem once and for all.

While most energy grids rely on alternating current (AC), direct current (DC), where electricity flows in a single direction, is now making nationwide, high-voltage transmission lines possible. This is because DC can reliably carry a lot of power over greater distances, reducing energy losses typically occurring with alternating current systems.


Source :

Smart Grid Bulletin February 2019

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