Definition of multi-generation systems.-Economic and environmental benefits of renewable energy sources in combined cooling, heating, potable water, hydrogen, and power generation systems -- Selection of cost-effective and energy-efficient storages with respect to uncertain nature of renewable energy resources and variations of demands -- Solar powered combined cooling, heating, potable water, hydrogen, and power generation systems with Application of ice storage/molten salt/batteries/electric and hydrogen vehicles -- Utilization of geothermal heat reservoirs of abandoned oil and gas wells for seawater purification and heat cool/hydrogen/power generation taking into account thermal energy storage systems such as molten salt -- Application of hydro potential in seawater desalination, hydrogen and power generation facilities without and with application of pumped storage -- Bio-fueled poly-generation of heat, power and fresh water production system considering advanced adiabatic compressed air energy storage -- Information gap decision theory for risk-aversion and risk-seeker decision making processes in solar multi-generation systems -- Monte Carlo simulations for sizing ice cold thermal energy storage in solar powered trigeneration microgrids -- Point estimation method for modeling intermittency of solar irradiations in molten salt integrated solar poly-generation plants -- Fuzzy scenario based stochastic programming approach for making robust decision in operation of biomass fired multi-generation plants -- Game theory application for finding optimal operating point of multi-production system under fluctuations of renewables and various load levels. .