A method for generating electrical energy, comprising the steps of providing a fusion fuel (1), the fusion fuel (1) being held in a magnetic field within a cylindrical reaction chamber (2), initiating nuclear fusion in the fusion fuel (1), in which a fusion flame is produced by fusion laser pulses (4) having a pulse duration of less than 10 ps and a power of more than 1 petawatt, and converting the energy that is released during the nuclear fusion from the nuclei that are produced into power plant power, wherein the magnetic field has a field strength which is greater than or equal to 1 kilotesla and the nuclear fusion has an energy yield of more than 500 per laser energy of the fusion laser pulses (4) that produce the fusion flame. Also described is a nuclear fusion reactor which is configured for generating electrical energy.