The simplified model for electric-discharge XeCl-laser is presented. Although there are many reports on the models of XeCl-laser, for an analysis having clear physical sense it is useful to have a simplified kinetic model. The model enables to calculate an electrons concentration, density of excimer XeCl * molecules, specific energy deposition in active medium and generation energy. The quasi-steady mode of discharge in XeCl-lasers is analyzed. The influence of E/P on generation energy of quasi-steady mode of electro-discharge XeCl-lasers operation is discussed.