Market Information System Grid and Market Conditions


Following are various maps of the ERCOT and North American Electric Reliability Corporation (NERC) regions.

NERC Interconnections Map
(08/18/2017, jpg, 149 KB)
ERCOT County Map
(08/18/2017, jpg, 1.3 MB)
ERCOT Regions Map
(03/23/2017, jpg, 770 KB)
ERCOT Regions Map
(03/28/2019, png, 230 KB)
NERC Interconnections Map
(02/11/2020, jpg, 200 KB)

Download Instructions: To view a map in its larger dimensions, click on it. The map will open in a separate browser tab.  To save, right-click the image and select Save Image As.  Macintosh users, click the image and select Save As.