We understand that this question refers to allocation of settlement residual rebates in proportion to the residual charge in the transmission pricing methodology (TPM).

In response to the question we would note that we did consider a residual-charge-based approach in the August 2022 SRAM Consultation Paper, as part of the consideration of the TPM charges option (see page 12, footnote 21 and page 34, paragraph B.7 of the Paper).  Chapter 4 lays out why we consider that the simple BB option better meets the Authority’s statutory objective than a residual-charge-based approach. 

However, we would welcome any submissions on whether a residual-charge-based approach or a TPM-charges-based approach to allocation of settlement residual rebates should be adopted.