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Electric Power Substations

Metadata Updated: March 16, 2024

This feature class represents known electric power substations within the continental US and Puerto Rico that are located within 20 miles of the coastline. Substations are facilities and equipment that switch, transform, or regulate electric voltage. This data set includes taps, a location where power on a transmission line is tapped by another transmission line. Many large rivers and bays hydrologically related to coastal waters were considered part of the coastline to make this data set as detailed and complete as possible. Therefore, applicable substations as far inland as Washington D.C., for example, are included. This data set is currently incomplete; data for Alaska, Hawaii and all of the US sovereign territories (except Puerto Rico) was not available at the time of creation. Although data for Puerto Rico is present, it dates from before the 2017 hurricane season, so the current validity is questionable. This product will be updated as new data becomes available.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Date February 29, 2024
Metadata Created Date January 24, 2022
Metadata Updated Date March 16, 2024
Reference Date(s) July 24, 2017 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOS OCM

Additional Metadata

Resource Type Dataset
Metadata Date February 29, 2024
Metadata Created Date January 24, 2022
Metadata Updated Date March 16, 2024
Reference Date(s) July 24, 2017 (publication)
Responsible Party NOAA Office for Coastal Management (Point of Contact)
Contact Email
Guid gov.noaa.nmfs.inport:66139
Access Constraints Cite As: Office for Coastal Management, [Date of Access]: Electric Power Substations [Data Date Range],, Use Constraints: For coastal and ocean planning, Distribution Liability:
Bbox East Long -64.925635
Bbox North Lat 55.947638
Bbox South Lat 17.947394
Bbox West Long -129.980235
Coupled Resource
Frequency Of Update asNeeded
Harvest Object Id dcb0b5a1-d4cb-4437-8d6c-a5d497ed8ce6
Harvest Source Id c0121fd9-df15-4168-ac04-42f6e36a794d
Harvest Source Title NOS OCM
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-129.980235, 17.947394], [-64.925635, 17.947394], [-64.925635, 55.947638], [-129.980235, 55.947638], [-129.980235, 17.947394]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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