AER - RBP access arrangement 2022–27 - PTRM - 2026–27 Return on debt update - March 2026

In line with our final decision on APTPPL's gas transmission network, we have updated RBP's return on debt for 2026–27. As a result of this update, the return on debt for 2026–27 is 4.72 per cent. This results in an X-factor for 2026–27 of –5.10 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.