Established joint calibration facility for pyrheliometers at PSA to be operated as ACCESS facility

This report summarizes the main characteristics of the developed facility. The calibration test bench for pyrheliometer and pyranometer has been set up at the Plataforma Solar de Almería (PSA), and includes: A heliostat engine which is used as solar tracker. On this tracker a mounting plate for the reference and field pyrheliometers has been installed. A Kipp&Zonen 2AP tracker with shading structures for the DHI reference pyranometer. A mounting table for pyranometers, temperature - humidity measurements, and precipitation. A whole sky imager. A wind mast with wind speed, wind direction and ambient temperature measurements