2027 Local capacity requirements process

Started: Sep 16, 2025

Leads
Catalin Micsa

The ISO performs annual studies to identify the minimum local resource capacity required in each local area to meet established reliability criteria. As part of this study process, the ISO obtains input from stakeholders on the criteria, methodology and assumptions used as inputs into the studies, and feedback on the study results. Based on the study results, load serving entities receive a proportional allocation of the minimum required local resource capacity by transmission access charge area, and submit resource adequacy plans to show that they have procured the necessary capacity.

Status

Development Decision Implementation Completed/Closed
Mar 05, 2026 Draft study results posted
Mar 09, 2026 Meeting
Mar 23, 2026 Comments due
Apr 02, 2026* Draft final report posting
Apr 09, 2026* Meeting
Apr 16, 2026* Comments due
Apr 30, 2026* Final report posting

Activities

Web meeting


Agenda - 2027 and 2031 Local Capacity Requirements - Mar 09, 2026

Overall Summary of Findings - Draft 2027 and 2031 Local Capacity Requirements - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements Humboldt Local Area - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - NCNB Local Area - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - Bay Area Local Area - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - Sierra Local Area - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - Stockton Local Area - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - Fresno Local Area - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - Kern Local Area - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - Big Creek-Ventura Local Area - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - Los Angeles Basin and San Diego-Imperial Valley Local Areas - Mar 09, 2026

Presentation - Draft 2027 and 2031 Local Capacity Requirements - San Diego Non-Bulk Sub-Areas - Mar 09, 2026

Submit comments Due: Mar 16, 05:00 pm

Study manual


Final Study Manual - 2027 Local Capacity Requirements

Draft Study Manual - 2027 Local Capacity Requirements

Web meeting


Presentation - 2027 Local Capacity Technical Study Criteria Methodology and Assumptions - Nov 03, 2025