Summer 2026 Resource Visibility Data Request

The California ISO is requesting that Scheduling Coordinators (SCs) for generating resources provide contractual data for their resources for this summer. The ISO would like insight into the contractual status of its fleet, as discussed in the Resource Adequacy Modeling and Program Design Track 3A: Resource Visibility policy initiative. 

As with last year's summer visibility effort, SCs are asked to submit to the ISO the contractual status of their resources that are on the Net Qualifying Capacity (NQC) list and anticipated to be on the NQC list during the summer. This applies if the data is available to the best of their knowledge at the time of data submission.

This is a one-time submission for this summer. The data should cover the categories listed below for the months of June through Sep. of 2026. To ensure the data is of greatest value to the ISO in evaluating conditions for the summer, we request that SCs make their best efforts to submit the data on or before May 15, 2026. 

Specifically, the ISO is requesting that the SCs for generating resources report to the ISO, separately for each month June through Sep. of 2026, what quantities of RA-eligible capacity fall into each of the following categories:

• Contracted to the ISO BAA LSE. This refers to RA-eligible capacity under a capacity contract to a CAISO BAA LSE. This applies regardless of how the resource has been, or is planned to be, shown to the CAISO on monthly RA supply plans for the months in question.
• Sold outside the ISO BAA. This refers to RA-eligible capacity that is under a capacity contract outside of the ISO BAA for the months of June to September of 2026.
• Not contracted. This refers to RA-eligible capacity that does not fit into either of the above categories. 

Please submit this information via a CIDI inquiry ticket in the production environment with the Functional Area of Data Submission and Submission Type of “2026 Summer Visibility Data Request” and attach this template (here).

Please contact Jared Ferguson at jferguson@caiso.com or ISO Customer Service at 916-608-7320 with any questions.