Bar Plot from Scientific Research

The percent of total bidirectional transmission value between nodes across regions that is in the same direction (that is, power always moving from Region 1 to Region 2). Over a ten-year period, on average, between 40% (unidirectional for a month) and 85% (unidirectional for a day) of total transmission value can be captured by sending power in only a single direction during the highest-valued hours.

DOI