This document summarizes the sensitivity studies performed by ATLAS for the discovery of Supersymmetry based on inclusive searches, assuming 1 fb(-1) of data and 14 TeV center-of-mass energy Final states consisting of large missing transverse energy and multiple high energy jets were considered in different channels, depending on the presence of leptons or bottom quarks in the decay chains The 5 sigma discovery potential of the searches was determined for different supersymmetric models, taking into account estimated systematic uncertainties