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Concentrating Solar Power Resource Maps

These direct-normal solar radiation maps—filtered by solar resource and land availability—identify the most economically suitable lands available for deploying of large-scale concentrating solar power plants in the southwestern United States.

Each of the following seven states, as well as the southwestern U.S. region, has two maps: the left and right maps represent analyses excluding land with slopes >1% and >3%, respectively. Lower-resolution jpg versions are available below; much higher-resolution pdf files, suitable for plotting large-scale posters, can be requested. You can also access an unfiltered direct-normal solar radiation map of the southwestern United States. Download Adobe Reader.

The index for each map includes three categories of information: power plants by generation type; transmission lines in a range of kilovolts (kV); and direct-normal solar radiation in kilowatt-hours per square meter per day (kWh/m2/d).

NREL has developed these maps to support the Southwest Concentrating Solar Power 1000-MW Initiative. Our Geographic Information Systems (GIS) team assisted with the development of these maps, as well as with the Solar Power Prospector Tool, an interactive mapping tool.

Visit TroughNet for more information about parabolic trough power plant market and economic assessment.

Southwestern U.S. Maps

Thumbnail image of 1%-slope NREL map of concentrating solar power prospects in the southwestern United States, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

1%-slope NREL Map
(JPG 1.2 MB)

Thumbnail image of 3%-slope NREL map of concentrating solar power prospects in the southwestern United States, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

3%-slope NREL Map
(JPG 1.4 MB)



Arizona Maps

Thumbnail image of 1%-slope NREL map of concentrating solar power prospects in Arizona, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

1%-slope NREL Map
(JPG 1.1 MB)

Thumbnail image of 3%-slope NREL map of concentrating solar power prospects in Arizona, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

3%-slope NREL Map
(JPG 1.3 MB)



California Maps

Thumbnail image of 1%-slope NREL map of concentrating solar power prospects in California, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

1%-slope NREL Map
(JPG 918 KB)

Thumbnail image of 3%-slope NREL map of concentrating solar power prospects in California, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

3%-slope NREL Map
(JPG 986 KB)



Colorado Maps

Thumbnail image of 1%-slope NREL map of concentrating solar power prospects in Colorado, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

1%-slope NREL Map
(JPG 834 KB)

Thumbnail image of 3%-slope NREL map of concentrating solar power prospects in Colorado, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

3%-slope NREL Map
(JPG 884 KB)



New Mexico Maps

Thumbnail image of 1%-slope NREL map of concentrating solar power prospects in New Mexico, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

1%-slope NREL Map
(JPG 1.3 MB)

Thumbnail image of 3%-slope NREL map of concentrating solar power prospects in New Mexico, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

3%-slope NREL Map
(JPG 1.5 MB)



Nevada Maps

Thumbnail image of 1%-slope NREL map of concentrating solar power prospects in Nevada, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

1%-slope NREL Map
(JPG 915 KB)

Thumbnail image of 3%-slope NREL map of concentrating solar power prospects in Nevada, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

3%-slope NREL Map
(JPG 1 MB)



Texas Maps

Thumbnail image of 1%-slope NREL map of concentrating solar power prospects in Texas, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

1%-slope NREL Map
(JPG 774 KB)

Thumbnail image of 3%-slope NREL map of concentrating solar power prospects in Texas, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

3%-slope NREL Map
(JPG 766 KB)



Utah Maps

Thumbnail image of 1%-slope NREL map of concentrating solar power prospects in Utah, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

1%-slope NREL Map
(JPG 914 KB)

Thumbnail image of 3%-slope NREL map of concentrating solar power prospects in Utah, with index highlighting direct-normal solar radiation, transmission lines, and power plants.

3%-slope NREL Map
(JPG 1 MB)