Updated Wheeling Access Charge Rates Effective 1/1/26

The California ISO has posted the following updated wheeling access charge rates, effective as noted below on its settlements webpage, under the Transmission access charge (TAC) rates/Wheeling access rates/Wheeling rates 2026 subheadings.

These rates will be included in the settlement calculation of transmission access charge transactions starting on the following trade dates:

Wheeling Access Rates	FERC Order	FERC Order Date
Rates effective Jan. 1, 2026	Pacific Gas & Electric Co.'s 2026 TRR/TRBAA information under Docket Number ER26-631 and ER26-3533	25-Nov-25
	StarTrans IO, LLC's 2026 TRBAA information under Docket Number ER26-334	23-Dec-25
	Delaney Colorado River Transmission's 2026 TRBAA information under Docket Number ER26-231	19-Dec-25
	Southern California Edison Company's 2026 TRR/TRBAA information under Docket Number ER26-602 and ER26-378	23-Dec-25
	Citizens S-Line Transmission LLC's 2026 TRR/TRBAA information under Docket Number ER26-208 and ER26-155	17-Dec-25
	Citizens Sunrise Transmission LLC's 2026 TRR/TRBAA information under Docket Number ER26-208 and ER26-150	22-Dec-25
	Citizens Sycamore Penasquitos Transmission LLC's 2026 TRR/TRBAA information under Docket Number ER26-107 and ER26-151	22-Dec-25
	LS Power Grid California, LLC’s 2026 TRR/TRBAA information under Docket Number ER25-1129 and ER26-140	19-Dec-25
	DesertLink, LLC’s 2026 TRR/TRBAA information under Docket Number ER26-315	19-Dec-25
	DATC Path 15’s 2026 TRBAA information under Docket Number ER26-261	22-Dec-25

Rates effective Jan. 1, 2026:

Jan. 2, 2026 – T+9B Initial Statement
Jan. 1, 2026 - T+70B Recalculation Statement

Contact information

Please contact ISO Customer Service at 916-608-7320 with any questions.