Updated Wheeling Access Charge Rates effective 1/1/25

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 2025 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 January 1, 2025	San Diego Gas & Electric's 2025 TRBAA information under Docket Number ER25-218	26-Dec-24
	City of Pasadena's 2025 TRBAA information under Docket Number NJ25-7	13-Mar-25
	City of Colton's 2025 TRR/TRBAA information under Docket Number NJ25-2	10-Feb-25

Rates effective Jan. 01, 2025:

Aug 26, 2025 - T+9B Initial Statement
Jun 9, 2025 – T+70B Recalculation Statement
Jan 01, 2025 – T+11M Rerun Statement

Contact information

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