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	City of Banning's 2026 TRR/TRBAA information under Docket Numbers NJ26-1-000	25-Mar-26
Rates effective Jan. 1, 2026	Trans Bay Cable, LLC’s 2026 TRBAA information under Docket Numbers ER26-1357	16-Mar-26

Rates effective Jan. 1, 2026:

Mar 31, 2026 – T+9B Initial Statement
Jan 08, 2026 – T+70B Recalculation Statement
Jan 01, 2026 – T+11M Rerun Statement

Contact information

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