A method for screening of multi-junction solar cells to be operated in a high sun intensity and high temperature (HIHT) environment, each of the solar cells comprising at least two pn-junctions (2, 3, 6) stacked on top of each other wherein one of the pn-junctions is a completely homogeneous pn-junction assumed to be free of intrinsic defects, comprising the steps of: - providing a number of solar cells to be screened for usability in a high sun intensity and high temperature environment; - for each solar cell of the number of solar cells, - acquiring an electroluminescence image of the homogeneous pn-junction at a predefined bias current (Isc); - analysing the spatial intensity distribution in the electroluminescence image to determine whether there are local intensity variations which possibly dissipate power in a high sun intensity and high temperature environment; - assorting the solar cells (140, 150) wherein solar cells having no local intensity variations in their electroluminescence image are put into a first group of solar cells and solar cells having at least one local intensity variation in their electroluminescence image are put into a second group of solar cells wherein solar cells of the first group are suitable for a high sun intensity and high temperature environment and solar cells of the second group are assumed to be potentially critical in a high sun intensity and high temperature environment; characterized in that the second group of solar cells are forwarded for further screening and the step of analysing the spatial intensity distribution in the electroluminescence image comprises the steps of - calculating of an average intensity Φav of the entire electroluminescence image or a subarea thereof and the standard deviation σ; - comparing for each pixel (xy) of the electroluminescence image whether the intensity Φxy in a given pixel is larger than a threshold intensity Φth, wherein Φth = Φav + nσ, with n being a predefined constant; and - assigning those pixel (xy) to form a local intensity variation where the intensity Φxy is larger than a threshold intensity Φth and which are adjacent to each other. - providing a number of solar cells to be screened for usability in a high sun intensity and high temperature environment; - for each solar cell of the number of solar cells, - acquiring an electroluminescence image of the homogeneous pn-junction at a predefined bias current (Isc); - analysing the spatial intensity distribution in the electroluminescence image to determine whether there are local intensity variations which possibly dissipate power in a high sun intensity and high temperature environment; - acquiring an electroluminescence image of the homogeneous pn-junction at a predefined bias current (Isc); - analysing the spatial intensity distribution in the electroluminescence image to determine whether there are local intensity variations which possibly dissipate power in a high sun intensity and high temperature environment; - assorting the solar cells (140, 150) wherein solar cells having no local intensity variations in their electroluminescence image are put into a first group of solar cells and solar cells having at least one local intensity variation in their electroluminescence image are put into a second group of solar cells wherein solar cells of the first group are suitable for a high sun intensity and high temperature environment and solar cells of the second group are assumed to be potentially critical in a high sun intensity and high temperature environment; - calculating of an average intensity Φav of the entire electroluminescence image or a subarea thereof and the standard deviation σ; - comparing for each pixel (xy) of the electroluminescence image whether the intensity Φxy in a given pixel is larger than a threshold intensity Φth, wherein Φth = Φav + nσ, with n being a predefined constant; and - assigning those pixel (xy) to form a local intensity variation where the intensity Φxy is larger than a threshold intensity Φth and which are adjacent to each other.