Assessment of a quality control procedure of hourly solar irradiations at Fez city, Morocco

In order to properly dimension solar power plants, it is necessary to have long series of relevant measurements of the available solar components at the site chosen for the installation. It is, however, well known that the quality of the measurements of solar irradiations can fail from time to time. Therefore, a quality control of the recorded data must be carried out before their use. This paper describes an assessment of a quality control procedure which is implemented for the hourly horizontal global and diffuse solar irradiations. A set of four quality control tests are applied to remove the erroneous data.