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.
13 Data Resources
Name Size Type Resource Description History
National IREZs 13.92 KB Data 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).
National IREZs map 446.11 KB Image 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.
CAISO_Supply_Curve 72.47 KB Data 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.
ERCOT_Supply_Curve 158.82 KB Data 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.
FRCC_Supply_Curve 37.12 KB Data 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.
ISONE_Supply_Curve 39.98 KB Data 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.
MISO_Supply_Curve 368.45 KB Data 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.
NorthernGrid_Supply_Curve 402.17 KB Data 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.
NYISO_Supply_Curve 31.43 KB Data 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.
PJM_Supply_Curve 138.1 KB Data 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.
SERTP_Supply_Curve 171.12 KB Data 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.
SPP_Supply_Curve 246.26 KB Data 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.
WestConnect_Supply_Curve 254.23 KB Data 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.
Author Information
David Hurlbut, Strategic Energy Analysis Center
Dylan Harrison-Atlas, Strategic Energy Analysis Center
Jianyu Gu, Strategic Energy Analysis Center
Cite This Dataset
Hurlbut, David, Dylan Harrison-Atlas, and Jianyu Gu. 2022. "Interregional Renewable Energy Zones." NREL Data Catalog. Golden, CO: National Renewable Energy Laboratory. Last updated: December 12, 2023. DOI: 10.7799/1885569.
About This Dataset
194
10.7799/1885569
Public
12/12/2023
DOE Project
National Transmission Planning Study
Funding Organization
Department of Energy (DOE)
Sponsoring Organization
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Strategic Programs, Policy and Analysis Office (EE-61P)
Research Areas
Energy Analysis
License
View License
Digital Object Identifier
10.7799/1885569