ERCOT's Generator Outage/Derate Visualization App (EGOVA) Update

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Anthony Levenda

Apr 6, 2021, 3:50:13 PM4/6/21

Forwarding on behalf of Edgar. Please see below.




Dear AAG EESG members,


I want to share the most recent release of the visualization app of ERCOT’s generator outage/derate events (EGOVA) I programmed ( This new version includes the files that ERCOT released on March 12th, disclosing the complete list of generators that self-reported outages or derate events from February 10th to 20th. The previous version of ERCOT’s files contained several redacted registers and did not include hundreds of records (first release: 1,797 / latest release:2,599).


Rather than using the information they published directly, I pre-processed it as described in the document that I’m attaching. This document is also available at To facilitate additional analysis by the energy community, I uploaded an Excel version of the database here


Finally, I created a new visualization showing the progression of events from February 10th to 20th, using a one-minute time span and a one-hour time step. It is available at


If you are interested on learning more or collaborating please do not hesitate to reach out.


Kind regards,


Edgar Andrés Virgüez R.

Ph.D. Candidate | Environmental Sciences & Policy

Nicholas School of the Environment, Duke University

9 Circuit Drive, Grainger Hall, Office 3120

Durham, NC 27708, United States of America




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