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by pjc50 2559 days ago
It turns out that this can be a substantial problem, resulting in wasted loop flows: https://iopscience.iop.org/article/10.1088/1367-2630/18/10/1...

Generally systems try to avoid too much loop power in the first place for this reason, setting up a directed but acyclic graph with some redundancy links carrying zero or near-zero power as standby.