Abstract: A photovoltaic system is installable on a substantially planar installation surface. The photovoltaic system includes at least one main photovoltaic system having at least one photovoltaic reference system corresponding to the main photovoltaic system. A control device is configured to adjust the tracker angle of main solar tracker devices based on the determined shading state of a first module element and/or a second module element.

Abstract: A retrofit for existing wind turbine foundations including a perimetral structure around an outer perimeter of a base of the existing wind turbine foundation, a pedestal structure on top of a pedestal of the existing wind turbine foundation and at least three lever arms, wherein the lever arms extend radially from the pedestal structure to the perimetral structure and are angularly spaced wherein the lever arms connect the perimetral structure with the pedestal structure.

Abstract: The application relates to a method, in particular a computer-implemented method, for training a machine learning model usable for determining a remaining useful life of a wind turbine, including providing a plurality of operation data sets of a reference wind turbine, providing a plurality of load data sets of the reference wind turbine, wherein a load data set is based on at least one load parameter measured at the reference wind turbine, and generating a plurality of wind turbine training data sets for training a machine learning model by synchronously assigning a respective operation data set with a respective load data set.

Abstract: A retrofit for existing wind turbine foundations including a perimetral structure around an outer perimeter of a base of the existing wind turbine foundation, a pedestal structure on top of a pedestal of the existing wind turbine foundation and at least three lever arms, wherein the lever arms extend radially from the pedestal structure to the perimetral structure and are angularly spaced wherein the lever arms connect the perimetral structure with the pedestal structure.