The RSR100, Rotating Shadowband Radiometer, offers a lower-cost option for providing solar measurements, GH, DIFF, and DNI. The RSR100 system utilizes the fast response time of a Li-Cor photocell diode (10 μsec) coupled with the burst measurement (up to 2 kHz), control, and processing capability of a Campbell Scientific datalogger to measure GHI and DIFF solar irradiance and compute DNI. An extensive range of additional sensors are available with the RSR100 for measuring meteorological and power parameters, such as wind speed and PV string performance. Reliable, low maintenance, low power requirements, and simple operation allow for long-term unattended remote solar resource assessment.
The RSR100 is built around Irradiance, Inc.’s RSR2TM Rotating Shadowband Radiometer. The RSR2TM is a second-generation instrument incorporating improvements in accuracy and mechanical reliability from collaborative research conducted at NREL, Sandia, and the University of Oregon Solar Monitoring Lab. Irradiance has manufactured over 500 RSR2TM units operating across six continents.
Most of the systems we sell are customized. These systems, however, typically measure the following parameters: