NASA has awarded a sole source contract to the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado Boulder for the Total and Spectral Solar Irradiance Sensor-2 (TSIS-2).

Researchers in Denmark claim to have identified the best locations for rear plane-of-array irradiance sensors on the back of single-axis trackers in bifacial PV projects. Their work suggests how ...

The readings from the Total Irradiance Monitor and the AcrimSat sensor are consistently separated by 5 watts per square meter, which works out to 0.4 percent of the sun’s intensity at the top of ...