The publisher regrets the below corrections: In Table 3 the minus signs of some PTDF values were erroneously omitted in the published version of the paper¹ Corrected Table 3 [Table presented] The negative RAMs in Table 4 are incorrect with regards to their signs. Corrected Table 4 [Table presented] The absolute values in Table 4 are correct. However, they assume reference flows at a point of no exchange between zones (net positions equal to zero). Therefore, they are computed with reference flows as defined in Eq. (7), namely F^0,D-2. Utilizing this definition – albeit correct – can be confusing to the reader at this point of the paper. The results, if computed according to Eq. (2) and (3) (using F^D-2), look as follows: Altered Table 4 with using F^D-2 [Table presented] The publisher would like to apologise for any inconvenience caused.