NOVELTY - Electrolysis cell comprises: a direct current (DC) voltage source having a positive terminal and a negative terminal; at least one electrode electrically connected to the positive electrode; and at least one electrode electrically connected to the negative electrode, where the DC voltage source is capable of delivering a voltage that cycles at a period (T) between a minimum voltage V(minimum) greater than or equal to 0 volts and V(maximum) = V(minimum) + Delta . The Delta is greater than 0 volts, and the voltage has at least one intermediate peak V(p1) while ramping from V(minimum) to V(maximum).    USE - The electrolysis cell is useful in electrical power unit and water heater (all claimed).    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) an electrical power unit comprising: the electrolysis cell; a volume of water in the cell, where the cell can produce hydrogen gas; and an energy conversion system capable of combusting the hydrogen gas and converting energy released by the combustion to electrical energy;    (2) a water heater comprising: the electrolysis cell; and a heat exchanger comprising a burner capable of combusting hydrogen produced by the electrolysis cell, and at least one pipe through which water is capable of flowing within a region heated by the combustion hydrogen, where heat is transferred to the water flowing through the pipes; and    (3) the turbine comprising: a shaft rotatable about a longitudinal axis of the shaft; a first chamber provided with at least one rotor fixed to the shaft and capable of rotation with the shaft about the longitudinal axis by action of a flow of fluid into the first chamber; a second chamber capable of supporting a negative pressure environment relative to the first chamber; and a valve system capable of controlling fluid flow between the first and second chambers.    DESCRIPTION OF DRAWING(S) - The figure shows the schematic representation of the electrolysis cell.    Electrolysis cell (12) DC voltage source (10)    Positive terminal (14)    Negative terminal (16)    Shaft (22)