Interregional Renewable Energy Zones
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.
The table shows the supply curve of each IREZ within the region of CAISO. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of ERCOT. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of FRCC. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of ISONE. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of MISO. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of NYISO. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of NorthernGrid. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of PJM. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of SERTP. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of SPP. Each tab presents an IREZ where the tabs are ranked by the total capacity.
The table shows the supply curve of each IREZ within the region of WestConnect. Each tab presents an IREZ where the tabs are ranked by the total capacity.
This file summarizes 155 IREZs by Hub_Id, Region (transmission plan region), Primary (primary resource type), PV_GW (PV total capacity, GW), Wd_GW (wind total capacity, GW), PV_LCOE_10 (the 10th percentile of LCOE of PV, $/MWh), PV_LOCE_50(the 50th percentile of LCOE of PV, $/MWh), PV_LCOE_avg (the average LCOE of PV, $/MWh), Wd_LCOE_10 (the 10th percentile of LCOE of wind, $/MWh), Wd_LOCE_50(the 50th percentile of LCOE of Wd, $/MWh), Wd_LCOE_avg (the average LCOE of wind, $/MWh), lon (longitude) and lat (latitude).
This map shows the spatial distribution of wind and solar IREZs overlaid with the transmission plan region and the states boundary. IREZs within a region are in alphabetical order representing the order of total capacity of the primary and secondary resource. A letter within a region corresponds to the tab name of a region’s supply curve table.
Citation Formats
TY - DATA
AB - 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.
AU - Hurlbut
A2 - Harrison-Atlas
A3 - Gu
DB - Open Energy Data Initiative (OEDI)
DP - Open EI | National Renewable Energy Laboratory
DO -
KW - Renewable Energy Zones
KW - Transmission
LA - English
DA - 2022/09/02
PY - 2022
PB - Strategic Energy Analysis Center
T1 - Interregional Renewable Energy Zones
UR - https://data.openei.org/submissions/8246
ER -
Hurlbut, et al. Interregional Renewable Energy Zones. Strategic Energy Analysis Center, 2 September, 2022, NREL. https://data.nrel.gov/submissions/194.
Hurlbut, Harrison-Atlas, & Gu. (2022). Interregional Renewable Energy Zones. [Data set]. NREL. Strategic Energy Analysis Center. https://data.nrel.gov/submissions/194
Hurlbut, Harrison-Atlas, and Gu. Interregional Renewable Energy Zones. Strategic Energy Analysis Center, September, 2, 2022. Distributed by NREL. https://data.nrel.gov/submissions/194
@misc{OEDI_Dataset_8246,
title = {Interregional Renewable Energy Zones},
author = {Hurlbut and Harrison-Atlas and Gu},
abstractNote = {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. },
url = {https://data.nrel.gov/submissions/194},
year = {2022},
howpublished = {NREL, Strategic Energy Analysis Center, https://data.nrel.gov/submissions/194},
note = {Accessed: 2025-07-21}
}
Details
Data from Sep 2, 2022
Last updated Dec 18, 2024
Submitted Sep 2, 2022
Organization
Strategic Energy Analysis Center
Contact
David J. Hurlbut
Authors
Original Source
https://data.nrel.gov/submissions/194Research Areas
Keywords
Renewable Energy Zones, TransmissionDOE Project Details
Project Name National Transmission Planning Study
Project Number DE-AC36-08GO28308
