his contribution presents the methodology we are currently developing in the framework of the EUMETSAT Land-SAF to estimate the evapotranspiration all over Europe by means of Satellite Remote Sensing (SRS). We present here the first validation results with data from two meteorological sites (Cabauw, MUREX) and output of the model run on a low resolution grid laid over Europe, for selected hours of the day. For the "on grid" validation, data to force the model was gathered from ECMWF (European Centre for Medium-Range Weather Forecast) archives in order to simulate MSG derived data which in the operational phase will come from other Land-SAF products. A sensitivity analysis performed on model runs with forcing data for the site of Cabauw (NL) is also presented.