A method of operating a biogas plant, as well as biogas plant

The invention relates to a method for operating a biogas plant having at least one fermenter, at least one gas reservoir for the biogas and at least a gas consumer, wherein the fermenter is fed to a substrate in a predetermined total quantity during a predetermined period for the fermentation and the gas collector biogas from the gas reservoir is supplied, characterized in that a predetermined upper limit value and a predetermined lower limit value for the volume of gas is stored in gas storage in a control device, is that determined by measurement during the fermentation process, the actual value of the gas volume in the gas storage and stored in the control device, that before the start of a predetermined period of time meteorologischer record in the control device is stored and that in dependence on the meteorological data and in dependence on the deviation of the measured actual value from the upper limit value and / od he lower limit value is controlled, the substrate feed during the predetermined time period or regulated.