Irradiance Shadowband Radiometer Applications

The first generation Rotating Shadowband Radiometer installed at NREL in 1991 was part of a nationwide effort by the Electric Power Research Institurte  to familiarize electric utility engineers with solar resources within their service areas.  This instrument is running today producing reliable data.  Two additional second generation Irradiance RSR2s are also now operating at NREL's Solar Radiation Research Laboratory.  One is part of NREL's Baseline Monitoring System comparing the performance of many solar radiation instruments.  The other is used by Irradiance for research and development, including methods for sensor calbration.

Researchers at the Pontificia Universidad Católica de Chile in Santiago are launching a nationwide effort to develop solar resource data using both satellite and ground station measurements.  RSR2 stations are deployed across the country, from the Atacama desert, which has perhaps the best solar resource in the world, to areas in more temperate southern Chile.