Gain-function of two non standby system with failure due to non availability of sunlight and switch failure

Introduction: In Solar System energy which is cheap and readily available for use in institutions places where energy is required. But for solar energy During rainy and winter seasons the sun is under the cover of clouds regularly resulting solar penal cells are unable to receive sunlight which causing system with failure due to non stops automatically. The failure time distribution is taken as exponential and repair time distribution as general. Semi Markov regenerative point technique we have calculated different reliability characteristics such as MTSF, reliability of the system, availability analysis in steady state, busy period analysis of the system under repair, expected number of visits by the repairman in the long run and profit been derived and graphs are drawn.