The current U.S. transmission system will need to be upgraded and expanded to make it possible to carry larger amounts of clean energy across longer distances. In a, NREL explains four options that can help do just that. This four-part series of articles dives deeper into each of those possibilities. This article discusses flexible alternating current transmission systems, or FACTS.Just like busy roads, the U.S.
But even if a larger set of transmission lines is added, the electricity will not automatically take the new, less-congested route. In scenarios like this, the inefficiency in transmission is not caused by individual transmission lines but rather the physics of the transmission network as a whole. “We can essentially use the laws of physics to our advantage by changing the way electricity flows on the system, steering electricity onto underutilized lines,” Denholm said. “This can be a very cost-effective way to increase the capacity of our current transmission system.”FACTS, which is well-proven technology, can be applied to both existing and new transmission systems. But one key challenge is understanding what locations are most suitable for it.
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