Method for operating a wind farm

A wind farm comprising:

• a plurality of wind power installations configured to generate electrical power;
• an infeed apparatus configured to feed the electrical power into the electrical supply grid;
• an identification apparatus configured to identify a forecast power describing a power that can be fed in in a predetermined, future forecast period by the wind farm;
• a forecast determination means for determining a reduction forecast power denoting, for the forecast period, a power by which the power fed in in the forecast period can be reduced;
• a supply means for supplying the reduction forecast power as negative control power;
• and
• at least one controllable consumer configured to consume power on demand,
• wherein the identification apparatus is configured such that the reduction forecast power is determined depending on the forecast power and a controllable consumption power,
• wherein the controllable consumption power describes a power that can be consumed on demand in the forecast period by the at least one controllable consumer.

A wind power installation for feeding electrical power into an electrical supply grid, the wind power installation comprising:

• an infeed apparatus for feeding electrical power into the electrical supply grid,
• an identification apparatus for identifying a forecast power describing a power to be fed in in a predetermined, future forecast period by the wind power installation,
• a forecast determination means for determining a reduction forecast power denoting, for the forecast period, a power by which the power fed in in the forecast period can be reduced, and
• a supply means for supplying the reduction forecast power as negative control power, and
• the at least one controllable consumer is configured to consume power on demand,
• wherein the identification apparatus is configured such that the reduction forecast power is determined depending on the forecast power and a controllable consumption power, and
• wherein the controllable consumption power describes a power that can be consumed on demand in the forecast period by the at least one controllable consumer present in the wind power installation.