Resource Adequacy

The MORA report serves as an early indicator of the hour-by-hour risk that ERCOT may need to issue an Energy Emergency Alert or call for controlled outages to maintain grid reliability for the reporting month. The MORA report uses probability-based modeling to determine the likelihood that ERCOT will have insufficient operating reserves during each monthly peak electric demand period. The reports also include scenarios to show demand and resource availability for selected hours based on expected grid conditions.

The MORA report is issued on the first Friday of each month. A MORA is released two months prior to the reporting month; for example, the planned release of the MORA report for August would be the first Friday in June.

View the latest public interconnection information on planned generation resources in the ERCOT Region.

This section consists of documents and data files pertaining to the Economically Optimum and Market Equilibrium Reserve Margin (EORM/MERM) reporting initiative, which was authorized by the Public Utility Commission of Texas as part of Project Number 42302, "Review of the Reliability Standard in the ERCOT Region." The current minimum target reserve margin established by the ERCOT Board of Directors is 13.75 percent of peak electricity demand to serve electric needs in the case of unexpectedly high demand or levels of generation plant outages.

Periodic drought risk reports based on ERCOT's risk monitoring tool that screens for potential drought-related impacts to generation resources. The tool predicts whether water supplies used by generation resources in the ERCOT Region are at risk of reaching levels requiring closer monitoring over the next 6 to 18 months, based on the most recent reservoir and lake levels from the Texas Water Development Board (TWDB) and historical trends in water usage. See "Related Documents" under the 2019 Resource Adequacy webpage for documentation of the tool methodology and other related reports.

Wind and solar profiles for use in ERCOT planning studies, as well as files showing the derivation of summer/winter wind and solar peak average capacity percentages using approved CDR methodologies. Effective Load Carrying Capability (ELCC) reports and materials are also posted here.