A thermal utilization plant including a heat engine and a cooling system for the heat engine. The heat engine is operable to receive heat from a non-carbon heat source (carbon heat source can be used) and to transfer heat to the cooling system. The cooling system includes an evaporator configured to vaporize a working fluid to a vapor state. A condenser is coupled to the evaporator by a conduit and operable to receive the working fluid in the vapor state and to condense the working fluid to a fluid state. An output is coupled to the condenser and operable to receive the working fluid from the condenser and to provide the working fluid for beneficial use.