Method for adjusting the feed-in power of electricity derived from biomass

The device has a supply conductor (2) coupled with a generator, and an adjustment unit (6) connected to the supply conductor for adjusting supply power, so that a portion of generated current is branchable and convertible from the feed conductor. The adjustment unit comprises a charging device for conversion of the branched current, and a control unit (3) for continuously controlling the portion of the branched current. The control unit is linked with a receiver receiving pulses from an electric supply network (4). An independent claim is also included for a device for adjusting supplying power at a block-type thermal power station.