Reliability analysis is a design-time activity. The goal is to anticipate problems and suggest product improvements before manufacturing and delivery. Enhanced quality and customer satisfaction along with reduced life-cycle costs are the motivation. Analysts employ models of physical systems to determine points of vulnerability and failure probabilities. Unfortunately, the models of complex sys...

a hybrid hydro/wind/photovoltaic base on hydrogen storage system is designed to supply power demand of pump stations. the aim of this design is minimization of net present cost of the hybrid system. optimization problem is subject to reliable supply of the demand. the system is investigated in the north west of iran (meshkinshahr) and the local data is applied. about 12 pump stations are found ...