NOVELTY - The system has a thermal energy unit powered by solar energy. A non-solar thermal energy unit provides thermal energy to a user via heat transfer fluid (HTF) (22) e.g. molten salt. A thermal energy storage unit (TES) and a mixing unit are directly or indirectly coupled to the energy units for receiving, storing and mixing the energy from the energy units to form unified heat transfer fluid that is fed to the user. Another non-solar thermal energy unit is powered by biomass fuel, coal, bio-fuel, liquefied natural gas (LNG), liquefied petroleum gas (LPG) and distillates.    USE - Hybridization system for use in a hybrid energy solar thermal biomass and fossil fuel power based plant for generating electricity for combined heat and power (CHB) applications.    ADVANTAGE - The fluids and salts save considerable investment in heat exchange systems so as to reduce auxiliary power consumption and simplify system configuration and operation. The system provides improved hybridization of energy sources so as to improve utilization efficiency. The system combines and utilizes separate energy sources e.g. thermal, solar and biomass, and thermal energy storage system so as to achieve better usage of the energy sources per the specific local needs for electrical power and heating. The system produces a final outcome that is greater than the sum of the individual outcomes of the component energy sources. The system considers unique operating characteristics of an individual system and allow for efficient hybrid operation in operating modes, thus providing sufficient system flexibility to satisfy dynamic needs of grid and performance targets, and improving plant utilization. The system uses salt/HTF heat exchangers for charging even during low radiation when the biomass boiler is used to generate steam, marginal solar thermal energy can be sent to storage, thus increasing stock of thermal energy collected by the solar field. The system generates direct steam on the salt/biomass side, so that slightly higher salt temperature can be used from the biomass heater, thus resulting in higher turbine efficiency. The system also allows efficient use of sources of thermal energy.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a biomass super-heater with steam generation on a HTF side.    HTFs (22, 24)    Steam (26)    HTF heater (40)    Hybrid energy plant (50)    Cold salt tank (52)