NOVELTY - Generating electric power comprises dissolving hydrogen sulfide in 1N sodium chloride electrolyte, air admission at a controlled pressure, electrochemical reaction between the oxygen from the admitted air and the hydrogen sulfide, removing the colloidal sulfur from the liquid mixture, and reforming the mixture liquid by being depleted of the water exceeding by decompression.    USE - The invention is used for generating electric power.    ADVANTAGE - The invention generates electric power which does not involve production of carbon dioxide, carbon monoxide, and sulfur dioxide effluents, and can be applied for oxidation of H2S at high sea water depths. Other advantages include generation of electric power using a toxic compound as fuel, electricity is generated simultaneously with colloidal sulfur production, the fuel cell has only one active porous electrode, and special materials or technologies are not needed for the electrolyte.    DETAILED DESCRIPTION - Generating electric power in which dissolved hydrogen sulfide (H2S) is electrochemically oxidized, comprises:    (1) dissolving H2S in 1N sodium chloride electrolyte at a concentration higher than 0.01 N H2S/l at greater than 20 Bar to obtain a liquid mixture H2S + electrolyte, 282plus minus5K;    (2) air admission at a controlled pressure, the air pressure being adjustable around the pressure with plus minus10 mbar;    (3) electrochemical reaction between the oxygen from the admitted air and the H2S from the liquid mixture H2S + electrolyte at the surface of a porous electric conductive element catalyzed by a catalyst loading that leads to electric power, water, colloidal sulfur and heat, at greater than 20 Bar and an average of temperature of 282 K;    (4) removing the colloidal sulfur from the liquid mixture H2S + electrolyte by filtering; and    (5) reforming the mixture liquid H2S+electrolyte by being depleted of the water exceeding by decompression.    An INDEPENDENT CLAIM is also included for a fuel cell for generating electrical power, comprising an open tubular insulated, waterproof and corrosive resistant material that has inside coaxially affixed a central tubular carbon porous cathode catalyst coated preferably with platinum, and a tubular anode preferably made of smooth carbon black maintained at spaced by a top binding element and a bottom binding element, each made of an insulated, waterproof and corrosive resistant material such as Teflon or glass-fiber reinforced polyester, a pressure regulator that controls the air injected into the cathode through a tube made of an insulated, waterproof and corrosive resistant material such are Technoflon or IIR, that has a coaxial larger but shorter tube around made of the same material as the tube, and a anodic connector, and cathodic connector both waterproof and corrosion resistant and mounted on the top binding element.    DESCRIPTION OF DRAWING(S) - The figure shows a flowchart of the inventive method.