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FairGrid

Energiewende für Deutschland

Stabile Strom­versorgung für Afrika

Load shedding to secure power grids is a proven way to prevent network crashes in Europe.

"Bulk consumers in particular, such as cement mills or large cold stores, have special contracts as load shedding customers. They must automatically shut down within defined times, typically in the seconds range. Even in the electronically networked (intelligent) power grid, all end users can be equipped with load shedding control. Load managers can selectively switch off end devices at short notice; suitable are consumer devices such as boilers, refrigerators and freezers, if they are equipped to be controlled." (Translated from the German version in Wikipedia)

Source: Wikipedia Wikipedia and Unterfrequenz

In the Fair Grid network, the Fair Box controller autonomously controls disconnecting and connecting large consumers such as air conditioners at an under-frequency range between 49 and 48 Hz. The circuits are linear and event-based in order to achieve a fair distribution between the different power consumers and a rocking and deceleration avoid frequent switching on and off. Criteria for prioritized switching on and off may be waiting times, energy consumption, peak power, solar power, weekdays, random circuits or pre-orders.

Web links: https://de.wikipedia.org/wiki/Unterfrequenz https://physics.stackexchange.com/questions/2641/how-does-load-affect-frequency-on-the-power-grid