NOVELTY - A hydrogen gas generation and collection system comprises a holding tank (2) providing a reservoir of hydroxide solution that is transferred to a generating tank having metallic fuel tubes; device for selectively pressuring the generating tank; and a humidifier tank for humidifying hydrogen gas.    USE - For generating hydrogen gas and employment it as a combustible fuel useful for vehicles and stationary power applications.    ADVANTAGE - The system generates a safe, powerful, and non-polluting energy source for vehicles; reduces the contemporary reliance upon fossil fuels; and safely and quickly produces hydrogen gas in an on demand manner suitable for use with vehicles. The system provides an affordable and cost-efficient replacement fuel source for vehicles; and is safely and dependably turn on and/or turn off the chemical production of hydrogen gas, thereby providing a hydrogen propulsion system suitable for practical use. The system provides an environmentally friendly, non-polluting energy source for vehicles; and provides an energy source that can be easily and economically renewed and/or stored. The system recycles and reuses various constituent materials and chemicals utilized in the preferred reaction process; and provides a low-cost energy source for vehicles. The system converts a fluid and solid into raw hydrogen suitable for use within modern internal combustion engines. The system regulates and controls the humidity if the propelling hydrogen generated through the process; and recycles the aluminum control rods preferably employed in the reaction. The system optimizes the rate at which the moisture-controlled hydrogen gas generated though system can be liberated for use at a rate of consumption commensurate with the energy use of a traveling vehicle. The system de-salinate water from sea and can substituted for the tap water or distilled water normally used, and it can be received from the condenser as drinking water, on a one-gallon-in, one-gallon-out basis.    DETAILED DESCRIPTION - A hydrogen gas generation and collection system comprises a holding tank (2) providing a reservoir of hydroxide solution; a gas generating tank in fluid flow communication with the reservoir, and containing several metallic fuel tubes (preferably aluminum tubes); unit for pressurizing the holding tank; pipeline 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; device for selectively pressurizing the generating tank to return hydroxide solution within the gas generating tank back into holding tank to stop the reaction; a humidifier tank in fluid flow communication with the generating tank for receiving hydrogen gas from generating tank and for humidifying it; and pipeline for delivering humidified hydrogen from the humidifier tank to an application.    DESCRIPTION OF DRAWING(S) - The figure shows a fragmentary, sectional view of the gas generation tank.    tank (2)    large inspection fitting (16)    solution (17)    aluminum tubes (18)    inlet fittings (19)    hydrogen gas bubbles (20)    tank interior. (45)