AER - TransGrid - Post-tax revenue model - 2022-23 return on debt update - January 2022

In line with our final decision on TransGrid's electricity transmission network, we have updated TransGrid's return on debt for 2022-23. As a result of this update, the return on debt for 2022-23 is 4.66 per cent. This results in an X-factor for 2022-23 of -8.30 per cent. Holding other things constant, a positive X-factor implies a real revenue decrease and a negative X-factor implies a real revenue increase. The revised PTRM shows the updated X-factor.