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    • Interregional Renewable Energy Zones

    Metadata Updated: March 21, 2026

    Interregional Renewable Energy Zones (IREZs) are a component of the National Transmission Planning Study (NTPS), which analyzes strategies for building out transmission infrastructure to support decarbonizing the electricity sector by 2035. In particular, IREZs envision long-distance transmission corridors for moving large amounts of low-cost renewable energy. An IREZ is a transmission collection point that is easily accessible to a very high volume of low-cost developable wind and solar energy potential. This dataset includes 155 IREZs identified across the continental United States where each IREZ is characterized by its primary and secondary resource.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date January 12, 2025
    Metadata Updated Date March 21, 2026

    Metadata Source

    Harvested from OpenEI data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 12, 2025
    Metadata Updated Date March 21, 2026
    Publisher Strategic Energy Analysis Center
    Maintainer
    Identifier https://data.openei.org/submissions/8246
    Data First Published 2022-09-02T16:50:38Z
    Data Last Modified 2026-03-12T18:10:31Z
    Public Access Level public
    Bureau Code 019:20
    Metadata Context https://openei.org/data.json
    Metadata Catalog ID https://openei.org/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Harvest Object Id 52caa78e-6d3c-4e35-97ff-f2c2b5c54081
    Harvest Source Id 7cbf9085-0290-4e9f-bec1-91653baeddfd
    Harvest Source Title OpenEI data.json
    Homepage URL https://data.nlr.gov/submissions/194
    License https://creativecommons.org/licenses/by/4.0/
    Program Code 019:000
    Projectnumber DE-AC36-08GO28308
    Projecttitle National Transmission Planning Study
    Source Datajson Identifier True
    Source Hash cc354061b208fa0a63b3859ab25adcefab0518cdca178ea786474f036cdde971
    Source Schema Version 1.1

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