The first step towards design of a solar power plant
NASA-SSE (Surface Meteorology and Solar Energy Programme) is monthly data, average of 1983-2005 satellite measurements, provided for any cell in a grid of 1o x 1o over the world.
SSE data set is a continuous and consistent 22-year global climatology of insolation and meteorology data.
Meteonorm data is a climatologic database for solar energy Applications combined with a synthetic weather generator. It contains a large database of ground station measurements collected from various sources.