A comprehensive meteoroligical station provides all the weather data necessary for a complete characterization of a solar system's performance.
Solar Resource Instruments:
Global Diffuse Radiation is measured by a Hukseflux SR11 Pyranometer (first class).
Total radiation in the plane of the fixed-mounted collectors (40° altitude, 180° azimuth) is measured by a Hukseflux LP02 Pyranometer (second class).
Other meteorological measurements:
Wind speed and direction are measured by a Met-1 034b Wind Set (PDF).
Ambient air temperature and humidity are measured by a Campbell Scientific HMP 50 temp & humidity sensor.
Precipitation is measured with a Texas Electronics 525 tipping rain bucket.