2025-2026 Transmission Planning Process: Preliminary Results Posted, Request Window Open

The California ISO has posted the 2025-2026 Transmission Planning Process preliminary reliability results to its website. The results are available on the 2025-2026 Transmission planning process webpage.

The Transmission Planning Request Window is now open until Oct. 15, 2025. The request window form can be found on the Transmission Planning webpage.

Contact information

Please contact Yelena Kopylov-Alford at ykopylovalford@caiso.com or ISOStakeholderAffairs@caiso.com with any questions.