Notice_Operations@lists.ercot.com
3/4/26, 10:23 AM
M-A030426-01 Resource Entity Hot Weather Operating Limits Review and Update
NOTICE DATE: March 4, 2026
NOTICE TYPE: M-A030426-01 Operations
SHORT DESCRIPTION: Resource Entity Hot Weather Operating Limits Review and Update
INTENDED AUDIENCE: ERCOT Resource Entities and NERC-registered Generator Owners that own or control Generation Resources or Energy Storage Resources in the ERCOT Region
DAYS AFFECTED: April 1, 2026
LONG DESCRIPTION: ERCOT is issuing a request for Resource Entities (REs) to review and update their hot weather temperature limits for their Resources in the Resource Integration and Ongoing Operations (RIOO) application. This request is associated with the documented data specification within ERCOT Nodal Protocols Section 3.10.6 as required by NERC Reliability Standards TOP-003-6.1 and IRO-010-5. ERCOT will use this information to perform its analysis functions as appropriate.
ERCOT is requesting that each RE review its hot weather operating limits within RIOO, which is currently populated with the previously provided limits and capabilities. REs are required to update their hot weather operating limits or indicate "all entered temperature values are unchanged" within RIOO by submitting a Resource System Change Request (RSCR) using the change type of Operating Temps/Alt Fuel prior to or on April 1, 2026.
Changes submitted into the RIOO application must be given a Production Load Date (PLD). The following table should be used to determine the PLD:
|
Submissions On or Before: |
Production Load Date |
|
March 12, 2026 |
April 1, 2026 |
|
March 19, 2026 |
April 8, 2026 |
|
March 26, 2026 |
April 15, 2026 |
|
April 1, 2026 |
April 22, 2026 |
Under 16 Texas Administrative Code (TAC) 25.503(f)(8), "a market entity has an obligation to provide accurate and factual information . . . in any communication with ERCOT or with the commission . . . ," and 16 TAC 25.503(f)(10) requires Market Participants to "comply with requests for information or data by ERCOT . . . within the time specified by ERCOT instructions . . . ." Consequently, responses should be as accurate as possible and should be provided in a timely manner.
ACTION REQUIRED: REs must review and update hot weather operating limits within RIOO no later than April 1, 2026.
ADDITIONAL INFORMATION: The information requested in this RFI serves as a supplement to information required by ERCOT's IRO-010 and TOP-003 documented specification for data necessary to perform Balancing Authority analysis functions, Operational Planning Analyses, Real-time monitoring, and Real-time Assessments. All NERC-registered Generator Owner and Generator Operator contacts are copied on this Market Notice as notification of the requirement to provide this information completely and by the required due date.
CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at ClientServices@ercot.com.
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