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Wind Integration National Dataset (WIND) Toolkit

Published by National Renewable Energy Laboratory | Department of Energy | Catalog Last Checked: April 25, 2026 at 08:41 AM | Dataset Last Updated: March 12, 2025 at 08:57 PM
Wind resource data for North America was produced using the Weather Research and Forecasting Model (WRF). The WRF model was initialized with the European Centre for Medium Range Weather Forecasts Interim Reanalysis (ERA-Interm) data set with an initial grid spacing of 54 km. Three internal nested domains were used to refine the spatial resolution to 18, 6, and finally 2 km. The WRF model was run for years 2007 to 2014. While outputs were extracted from WRF at 5 minute time-steps, due to storage limitations instantaneous hourly time-step are provided for all variables while full 5 min resolution data is provided for wind speed and wind direction only. The following variables were extracted from the WRF model data: - Wind Speed at 10, 40, 60, 80, 100, 120, 140, 160, 200 m - Wind Direction at 10, 40, 60, 80, 100, 120, 140, 160, 200 m - Temperature at 2, 10, 40, 60, 80, 100, 120, 140, 160, 200 m - Pressure at 0, 100, 200 m - Surface Precipitation Rate - Surface Relative Humidity - Inverse Monin Obukhov Length

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "019:20"
]
contactPoint 
                                            {
  "fn": "Wind Toolkit Team",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:windtoolkit@nlr.gov"
}
dataQuality 
                                            true
description Wind resource data for North America was produced using the Weather Research and Forecasting Model (WRF). The WRF model was initialized with the European Centre for Medium Range Weather Forecasts Interim Reanalysis (ERA-Interm) data set with an initial grid spacing of 54 km. Three internal nested domains were used to refine the spatial resolution to 18, 6, and finally 2 km. The WRF model was run for years 2007 to 2014. While outputs were extracted from WRF at 5 minute time-steps, due to storage limitations instantaneous hourly time-step are provided for all variables while full 5 min resolution data is provided for wind speed and wind direction only. The following variables were extracted from the WRF model data: - Wind Speed at 10, 40, 60, 80, 100, 120, 140, 160, 200 m - Wind Direction at 10, 40, 60, 80, 100, 120, 140, 160, 200 m - Temperature at 2, 10, 40, 60, 80, 100, 120, 140, 160, 200 m - Pressure at 0, 100, 200 m - Surface Precipitation Rate - Surface Relative Humidity - Inverse Monin Obukhov Length
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "WIND AWS S3 Bucket",
    "format": "HTML",
    "accessURL": "https://data.openei.org/s3_viewer?bucket=nrel-pds-wtk",
    "mediaType": "text/html",
    "description": "AWS Public Dataset Bucket for the Wind Integration National Dataset (WIND). This data is in .h5 format and is made for use with the Wind Integration National Dataset Toolkit. The data bucket includes wind data across multiple years and worldwide sites.

NOTE: The directory titled "Offshore_CA" is a deprecated dataset. This version of the data set for offshore California shows a large bias compared to offshore lidar observations, as described in Bodini et al., 2022 (https://www.boem.gov/sites/default/files/documents/regions/pacific-ocs-region/environmental-analysis/BOEM-2022-072.pdf). The updated California data can be found in the directory titled "now23_california""
  },
  {
    "@type": "dcat:Distribution",
    "title": "Wind Toolkit Data API",
    "format": "HTML",
    "accessURL": "https://developer.nrel.gov/docs/wind/wind-toolkit/wtk-download/",
    "mediaType": "text/html",
    "description": "Gives instructions for downloading and using the Wind Toolkit Data API. This API allows users to create large downloadable data archives via a data request. The data available includes more than 2,488,136 national wind station sites in the continental United States for the years 2007 to 2014."
  },
  {
    "@type": "dcat:Distribution",
    "title": "HSDS Usage Example",
    "format": "ipynb",
    "accessURL": "https://github.com/NREL/hsds-examples/blob/master/notebooks/01_WTK_introduction.ipynb",
    "mediaType": "application/octet-stream",
    "description": "Examples of using the HSDS Service to access NREL WIND Toolkit data. This documentation in helpful for learning how to use the WIND Toolkit API and for learning to apply the data to form plots and diagrams."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Wind Integration National Dataset Registry on AWS",
    "format": "HTML",
    "accessURL": "https://registry.opendata.aws/nrel-pds-wtk/",
    "mediaType": "text/html",
    "description": "A registry of the NREL Wind Integration National Dataset. References the "WIND AWS S3 Bucket" data link. Released to the public as part of the Department of Energy's Open Energy Data Initiative,  the Wind Integration National Dataset (WIND) is an update and expansion of the Eastern Wind Integration Data Set and Western Wind Integration Data Set. It supports the next generation of wind integration studies. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "Weather Research and Forecasting Model Website",
    "format": "HTML",
    "accessURL": "https://www.mmm.ucar.edu/models/wrf",
    "mediaType": "text/html",
    "description": "Link to the Weather Research and Forecasting Model (WRF) webpage. Here, more information regarding the WRF can be found, including a WRF User's Page."
  },
  {
    "@type": "dcat:Distribution",
    "title": "WIND Toolkit Documentation",
    "format": "html",
    "accessURL": "https://www.nrel.gov/grid/wind-toolkit.html",
    "mediaType": "text/html",
    "description": "Official website for the Wind Integration National Dataset (WIND) Toolkit. From here, additional information on the WIND Toolkit can be found along with instructions for accessing, validating, and citing data from the WIND Toolkit. One of the ways to access the data is the Wind Toolkit Data API which can also be found in the "Wind Toolkit Data API" resource link within this submission."
  }
]
DOI 10.25984/1822195
identifier https://data.openei.org/submissions/2
issued 2014-09-26T06:00:00Z
keyword 
                                            [
  "API",
  "ERA Interm",
  "ERA-Interm",
  "Eastern Wind Integration Data Set",
  "WRF",
  "Weather Research and Forecasting Model",
  "Western Wind Integration Data Set",
  "code",
  "data",
  "energy",
  "meterology",
  "model",
  "numerical weather model",
  "power",
  "python",
  "toolkit",
  "weather",
  "wind",
  "wind data"
]
landingPage https://data.openei.org/submissions/2
license https://creativecommons.org/licenses/by/4.0/
modified 2025-03-12T20:57:38Z
programCode 
                                            [
  "019:010"
]
projectNumber 
                                            "26877"
projectTitle WIND Toolkit
publisher 
                                            {
  "name": "National Renewable Energy Laboratory",
  "@type": "org:Organization"
}
spatial 
                                            "{"type":"Polygon","coordinates":[[[-180,-83],[180,-83],[180,83],[-180,83],[-180,-83]]]}"
title Wind Integration National Dataset (WIND) Toolkit

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