Solar energy resource availability under extreme and historical wildfire smoke conditions

Kimberley A. Corwin (), Jesse Burkhardt, Chelsea A. Corr, Paul W. Stackhouse, Amit Munshi and Emily V. Fischer
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Kimberley A. Corwin: Colorado State University
Jesse Burkhardt: Colorado State University
Chelsea A. Corr: Springfield College
Paul W. Stackhouse: NASA Langley Research Center
Amit Munshi: Colorado State University
Emily V. Fischer: Colorado State University

Nature Communications, 2025, vol. 16, issue 1, 1-15

Abstract: Abstract By 2050, the U.S. plans to increase solar energy from 3% to 45% of the nation’s electricity generation. Quantifying wildfire smoke’s impact on solar photovoltaic (PV) generation is essential to meet this goal, especially given previous studies documenting sizable PV output losses due to smoke. We quantify smoke-driven changes in baseline solar resource availability [i.e., amount of direct normal (DNI) and global horizontal (GHI) irradiance] at different spatial and temporal scales using radiative transfer model output and satellite-based smoke, aerosol, and cloud observations. We show that irradiance decreases as smoke frequency increases at the state, regional, and national scale. DNI is more sensitive to smoke with sizable losses persisting downwind of fires. Large reductions in GHI–the main PV resource–are possible close to fires, but mean GHI declines minimally (

Date: 2025
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DOI: 10.1038/s41467-024-54163-8

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