NOVELTY - A hydrogen gas generation and collection system comprises a holding tank for hydroxide solution; a gas generating tank with metallic fuel rods; a mechanism for pressurizing holding tank; a mechanism for transferring hydroxide solution to gas generating tank; a mechanism for selectively pressurizing generating tank; a humidifier tank; and a mechanism for delivering humidified hydrogen to an application.    USE - Useful for an engine or fuel cell (claimed), preferably modern internal combustion engines for vehicles.    ADVANTAGE - The inventive hydrogen gas generation and collection system generates a safe, powerful, and non-polluting energy source for vehicles; and reduces the contemporary reliance upon fossil fuels. It produces hydrogen gas in an on demand manner. It is affordable and a cost-efficient replacement fuel source for vehicles. It is also an environmentally friendly, non-polluting energy source for vehicles.    DETAILED DESCRIPTION - A hydrogen gas generation and collection system comprises a holding tank as a reservoir of hydroxide solution; a gas generating tank in fluid flow communication with the reservoir, comprising metallic fuel rods; a mechanism for pressurizing the holding tank; a mechanism for transferring hydroxide solution into the gas generating tank from the holding tank in response to pressure to start a gas generating reaction in the generating tank; a mechanism for selectively pressurizing the generating tank to return hydroxide solution within the gas generating tank back into the holding tank to stop the reaction; a humidifier tank in fluid flow communication with the generating tank for receiving hydrogen gas from the generating tank and for humidifying it; and a mechanism for delivering humidified hydrogen from the humidifier tank to an application.    An INDEPENDENT CLAIM is included for a method for generating hydrogen gas, comprising providing a reservoir of hydroxide solution; providing a gas generating tank in fluid flow communication with the reservoir; equipping the generating tank with tubular, metallic fuel rods; pressurizing the reservoir; transferring hydroxide solution into the gas generating tank from the holding tank in response to pressure to start a gas generating reaction in the generating tank; selectively pressurizing the generating tank to return hydroxide solution within the gas generating tank back into the reservoir to stop the reaction; humidifying hydrogen gas from the generating tank; and delivering humidified hydrogen gas to an application.    DESCRIPTION OF DRAWING(S) - The figure shows an overall block diagram of the hydrogen gas generation system.    Shut-off valve (4)    Pressure valve (5)    Valve (10)    Exit line (29)    Resulting hydrogen has output line (30)    Hydrogen gas collected output line (32)