|Supervisor:||Prof. Dr. Gunther Seckmeyer (IMUK), Dr. Fernando Ramos Martins (UNIFESP)|
|Researcher:||Angelika Niedzwiedz, Eduardo Weide Luiz, Marcelo Pizzuti Pes, Sonja Veith|
Solar energy production has a very significant time variability caused mostly by the varying solar elevation, clouds and aerosol pollution. Particularly, the diurnal variation of solar power with all panels oriented southward/northwards (depending on the Earth’s hemisphere), with latitudinal inclination angles, does not match well with the daily electricity load curve. The electricity demand grows along the day and gets its maximum in the middle of the afternoon. In contrast, the energy production of southward/northwards oriented solar panels has a maximum at noon during sunny conditions, which may lead to overproduction. Instead of arranging all solar panels of PV power plants northwards with the similar inclination angle, the project team tested alterations in the diurnal power yield curve by varying azimuth orientations of several solar panels of a PV power plant. The power yield curve can then be optimized with regard to the power consumption by adjusting geometry orientation angles based on typical environmental conditions for a certain location. Furthermore, a measurement setup with a small and fast array spectroradiometer which was installed on a pan-tilt system to be oriented with different angles was developed. Additionally, as electricity prices depend on demand, this new approach matching load and supply curves can be more economical and result in lower energy prices, making solar energy more attractive for Brazilian and German consumers, improving energy security as well as economical and sustainable progress.