Solar energy is no longer just a clean alternative; it’s becoming a cornerstone of the global energy system. In 2026, high efficiency solar panels are leading this transformation, delivering more ...

The ASTM G173 Standard Spectral Distribution of Sunlight represents a standard, reference solar spectrum that is used for solar photovoltaics testing and calibration purposes. It was defined in the ...

The text below the image reads: “SOLAR SPECTRUM. / FROM NEGATIVES MADE WITH AN INTERFERENCE GRATING BY LEWIS M. RUTHERFURD, NEW YORK, 1875 / PRINTED AND PUBLISHED BY OSCAR G. MASON, NEW YORK, U. S. A.

Researchers at the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) developed a translucent solar panel to allow certain light spectrums to pass through that are optimal for ...

After four centuries of advances, astronomers now capture the Sun’s swirling, dynamic features in stunning detail.

Researchers developed a solar collector with a dielectric Bragg mirror, optimizing energy conversion by separating sunlight ...