NOVELTY - The energy system comprises an electrolytic smelter (30) comprising a power input (P(S)) and an alumina mixture input flow rate, a reactor unit comprising a reactor configured to react aluminum alloy with water at a flow rate (A(R)) to generate hydrogen and heat, and a turbine configured to produce power (P(T)) from the heat by combustion of the hydrogen in a fuel cell. The smelter is configured to convert alumina mixture to an aluminum mixture at a flow rate (A(S)). A portion of power (P(T)) is connected to an external load (P(L)).    USE - The energy system is useful in a system for electricity production for supplying power to a load (claimed).    ADVANTAGE - The energy system is capable of effectively and economically producing the electricity with minimal carbon footprint/emission.    DETAILED DESCRIPTION - The energy system comprises an electrolytic smelter (30) comprising a power input (P(S)) and an alumina mixture input flow rate, a reactor unit comprising a reactor configured to react aluminum alloy with water at a flow rate (A(R)) to generate hydrogen and heat, and a turbine configured to produce power (P(T)) from the heat by combustion of the hydrogen in a fuel cell. The smelter is configured to convert the alumina mixture to an aluminum mixture at a flow rate (A(S)). A portion of power (P(T)) is connected to an external load (P(L)). An external energy source provides power (15) to smelter unit. The external energy source comprises nuclear, wind, solar, geothermal or hydroelectric energy. The flow rate (A(R)) is kept at zero when P1 is greater than P(L)+P(S), and the net accumulation rate for the aluminum alloy (A(N)) is maximized in accordance to the equation A(N)=A(S)-A(R)=SP(S)-P(T)/RT when P1 is less than P(L)+P(S), where P(S) is the power required for the smelter in kW, S is the efficiency of the smelter unit in kg/kWh, R is the rate of energy production in a reaction unit (40) in kWh/kg, T is the efficiency of the turbine, A(R) is the mass flow rate of aluminum alloy fed to the reaction unit in kg/hr and A(S) is the rate of production of aluminum alloy by the smelter in kg/hr. INDEPENDENT CLAIMS are included for:    (1) a system for electricity production for supplying power to a load; and    (2) a method of stabilizing or supplementing electrical power output from a renewable energy source.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a system for producing power.    Power (15)    Energy node (20)    Smelter (30)    Reaction unit (40)    Turbine unit. (50)