Resource Adequacy 2013

Correspondence and Other Information

View letters regarding adequacy.

Chairman Craven Crowell letter to Sen. Troy Fraser 7/16/13
Letter from ERCOT Board Chairman Craven Crowell to Sen. Troy Fraser regarding board action on reserve margin
Jul 16, 2013 - pdf - 50.5 KB
Jan 3, 2013 - xls - 182 KB
Letter from North American Electric Reliability Corporation
NERC letter to ERCOT CEO Trip Doggett on Resource Adequacy
Jan 14, 2013 - pdf - 266.8 KB
Sen. Troy Fraser Letter to ERCOT Board 7/15/13
Letter from Sen. Troy Fraser to ERCOT Board of Directors regarding target reserve margin
Jul 15, 2013 - pdf - 62.4 KB

Generation Interconnection Information

View the latest information on generation resources in the ERCOT region.

Market Design Analysis

The Public Utility Commission of Texas (PUC) and ERCOT Board have been evaluating possible approaches to encourage new generation development within the ERCOT region to maintain adequate capacity reserves. This section includes reports and presentations associated with this investigative effort.

Jan 3, 2013 - pdf - 2.2 MB
ERCOT Analysis of the Interim Solution B
Analysis of proposal discussed at Jan. 24, 2013, PUC workshop
Feb 13, 2013 - pdf - 187.8 KB
Estimating the Value of Lost Load
Literature Review and Macroeconomic Analysis
Jun 19, 2013 - pdf - 1.2 MB
Impact Analysis Estimating Cost and Timeline to Implement ORDC B
Report to PUC on costs to implement operating response demand curve B+ proposal
Sep 6, 2013 - pdf - 234.6 KB
Impact Assessment of Real-Time Energy and Ancillary Services Coo
Report to PUC on costs to implement real-time energy and ancillary services cooptimization
Sep 6, 2013 - pdf - 894.5 KB
Newell Oct25 PUCT Workshop_Composite Options_10-19-2012
The Brattle Group report on 'composite' options for resource adequacy in ERCOT
Jan 3, 2013 - pdf - 745.4 KB
White Paper - Back Cast of Interim Solution B+
Approximate pricing outcomes and estimates of Interim Solution B+ in 2011 and 2012 market conditions
Mar 28, 2013 - pdf - 702 KB

Planning Reserve Margin Analysis

The ERCOT Board of Directors has established a minimum target reserve margin equal to 13.75 percent of peak electricity demand to serve electric needs in the case of very high demand or unexpectedly high levels of generation plant outages. This section consists of reports that describe the methodology and results of studies that help the ERCOT Board determine the appropriate target reserve margin.

ERCOT Loss of Load Study-2013
Assumptions and Methodology
Mar 8, 2013 - pdf - 557.7 KB
Mar 8, 2013 - pdf - 2.5 MB

Previous Assessments

View previous CDR and SARA reports.

Sep 3, 2013 - xls - 200 KB
Mar 1, 2013 - xls - 235.5 KB

Resource Adequacy Assessments

This biannual report contains a 10-year forecast of electric use and expected generation resources.

The SARA is based on criteria similar to CDR, however the seasonal outlook reflects near-term weather forecasts, generator outage trends, and updates to the generation fleet. 

Nov 1, 2013 - pdf - 169 KB
Nov 1, 2013 - xls - 193.5 KB
Nov 1, 2013 - xls - 169.5 KB
Nov 1, 2013 - pdf - 165.5 KB