Wind Supply Curves

NREL has developed an interactive map and geospatial data showing wind supply curves, which characterize the quantity and quality of land-based and offshore wind resources across the contiguous United States.

Routinely updated, these supply curves capture emerging siting constraints, technology costs, and innovations.

These supply curves, updated regularly, incorporate emerging siting constraints, technology costs, and innovations. They are valuable for a wide range of stakeholders, supporting activities such as:

Developer prospecting
Capacity expansion modeling
Transmission planning

To further enhance usability, NREL has released additional resources linked to these supply curves, including:

Economic estimates
Hourly capacity factor profiles
Detailed geospatial siting data
Local ordinances
Tools for creating custom siting datasets

Siting Lab

The latest wind supply curve data is now hosted on the Siting Lab. Previous datasets have been archived on OpenEI.

In addition, Siting Lab offers information on wind energy siting regulations and zoning ordinances, making it a comprehensive resource for researchers, planners, and developers.

Interactive Land-Based Wind Supply Curve Map

Interactive map of the United States showing land-based wind supply curves. Reference Siting—ATB Moderate for 2030 indicates a capacity range of 0.02 MW–398 MW, with an average of 137 MW. Capacity, mean wind speed, and mean capacity factor are all taken into consideration when determining the quantity and quality of land-based wind resources. For assistance with this map, please contact the webmaster.

Note: Please view the interactive Land-Based Supply Curve map from a desktop computer to access it. It is not visible on mobile devices.

Interactive Offshore Wind Supply Curve Map

Interactive map of the United States showing offshore wind supply curves. Reference Siting—ATB Moderate for 2030 indicates a capacity range of 0.02 MW–398 MW, with an average of 137 MW. Capacity, mean wind speed, and mean capacity factor are all taken into consideration when determining the quantity and quality of offshore wind resources. For assistance with this map, please contact the webmaster.

Note: Please view the interactive Offshore Wind Supply Curve map from a desktop computer to access it. It is not visible on mobile devices.

Interactive Wind Ordinances Map

Interactive map of the United States showing wind ordinances, including moratorium or banned locations, building setbacks, road setbacks, property line setbacks, railroad setbacks, noise limits, transmission setbacks, height restrictions, water setbacks, shadow flicker limits, other ordinances, and statewide ordinances. For assistance with this map, please contact the webmaster.

Note: Please view the interactive Wind Ordinances map from a desktop computer to access it. It is not visible on mobile devices.