NOVELTY - A method for producing energy or methanol involves converting waste gas from internal combustion engine into synthesis gas in presence of organic material then feeding product to engine and/or synthesizing methanol.    USE - For producing mechanical energy (specifically to drive a generator to produce electrical current, i.e. to produce electrical energy), heat energy and methanol (as form of stored chemical energy, useful in the production of energy and electrical current using the present system and/or for other purposes, e.g. as a propellant for motor vehicles). The system is suitable for use as an energy source in private households.    ADVANTAGE - Electrical current, heat and the energy carrier methanol can be produced efficiently and inexpensively from organic materials.    DETAILED DESCRIPTION - A method for producing energy or methanol involves:    (i) burning a fuel in an internal combustion (IC) engine, to provide mechanical energy and waste gas (WG) containing carbon dioxide and water;    (ii) reducing WG in an environment containing organic material to give a synthesis gas (SG) containing carbon monoxide and hydrogen; and    (iii) either (a) supplying SG to the IC engine or (b) using SG to produce methanol, separating the methanol and optionally supplying unreacted SG and/or the methanol to the IC engine.    INDEPENDENT CLAIMS are included for:    (A) apparatus for producing energy, consisting of an IC engine connected to a thermochemical reactor for reducing WG to SG, where the obtained SG is supplied to the IC engine; and    (B) apparatus for producing methanol, consisting of an IC engine connected to a thermochemical reactor for reducing WG to SG, itself connected to a reactor for synthesizing methanol form SG, where the residual SG and/or methanol is supplied to the IC engine.    DESCRIPTION OF DRAWING(S) - The figure shows an apparatus for producing energy and methanol.    Internal combustion engine (12)    Current generator (16)    Storage battery (18)    Gas mixer (22)    Combustion gas line (24)    Heat accumulator (26)    Thermo-chemical reactor (28)    Organic material storage container (30)    Methanol tank (50)