NOVELTY - The system (1) has a loading module (2), a gasification module (7), a gas cooling module (11), a gas cleaning module (12), and a water-gas-shift and hydrogen separation module (14) connected with each other by a coupling interface. The gasification module comprises a three phase plasma generator (8) powered with an alternating current. The coupling interface includes a set of coupling units and connections for gas, electric power and communication. The cleaning module purifies the gas so that required level of purity of hydrogen is obtained.    USE - Flexible modular system for production of hydrogen from organic material i.e. waste (claimed) such as domestic waste and industrial waste, in a gasification plant. Can also be used for production of hydrogen from carbonaceous fuel such as natural gas, oil, coal, biomass, methane, C1-C4 hydrocarbon, methanol, gasoline and diesel fuel.    ADVANTAGE - The system is provided with a heat exchanger to extract heat generated during a cooling process, such that the extracted heat is provided to a pre-treatment module for pre-heating or drying of the organic material, thus increasing efficiency of the system. The gas is lead through a series of filters depending on properties of the organic material and the composition of the chemicals when cooling and cleaning of the gas are terminated so as to ensure purity of the gas. The system allows separation of the hydrogen by performing a membrane filtration process such that the gas is circulated to ensure a high and efficient yield of hydrogen. The system enables deposition of the carbon dioxide during generation of the hydrogen so as to actively reduce amount of atmospheric carbon dioxide. The system can be easily set up near the customer, thus eliminating the need of transporting the hydrogen. The system facilitates the redesign when demands are changing. The modules can be easily connected with each other, so that the system is flexible to use.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of a gasification plant.    Flexible modular system (1)    Loading module (2)    Gasification module (7)    Three phase plasma generator (8)    Gas cooling module (11)    Gas cleaning module (12)    Water-gas-shift and hydrogen separation module (14)