To clients, who would like the reassurance of precise data in order to make decision, we offer to measure the solar irradiance directly in the location of the prospective photovoltaic power station. The duration of measuring depends on the client; however, we recommend gathering data for the minimum period of one year.
For measuring, we use a small, energy self-sufficient technology of USA manufacturer - NRG Systems, which is possible to place for example on a roof of a building, or on a mast. The sensor (pyranometr), which measures the solar radiation flux density, passes the recorded data to communication equipment. The data are then sent at regular intervals via GSM port to our company for further processing.