Regional Transmission Organizations (Independent System Operators)

Downloaded from ourgridfuture.org, Horizon Climate Group, 2025. Originally from ORNL, LANL, INL, NGA and HSIP, 2021. Attribute table modified by Horizon Climate Group. Suggested citation below.

Oak Ridge National Laboratory (ORNL), Los Alamos National Laboratory (LANL), Idaho National Laboratory (INL), National Geospatial-Intelligence Agency (NGA), Homeland Security Infrastructure Program (HSIP) Team, Independent System Operators, November 8, 2021, https://hub.arcgis.com/datasets/50f80920d36e435d9a34db2bd0fd3ad8_0/about. Modified by Horizon Climate Group, 2025.