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A room during load shedding at night in West Bengal, India. A rolling blackout, also referred to as rota or rotational load shedding, rota disconnection, feeder rotation, or a rotating outage, is an intentionally engineered electrical power shutdown in which electricity delivery is stopped for non-overlapping periods of time over different parts of the distribution region.
For example, California introduced its own ELRP, where upon an emergency declaration enrolled customers get a credit for lowering their electricity use ($1 per kWh in 2021, $2 in 2022). [27] Commercial and industrial power users might impose load shedding on themselves, without a request from the utility.
On 7 December 2022, level 6 load shedding was reimposed when over 20,000MW of generation was taken off line due to a high number of power station breakdowns. [113] [114] It was reported that level 7 load shedding might begin if planned maintenance was implemented, that would take one of Koeberg's nuclear reactors offline. [115]
The outage occurred only an hour after the National Electricity Market Management Company (NEMMCO) issued a statement saying load shedding was ending and power had been restored. Authorities say there had been a major electricity failure in the city's west, caused by the three-day heatwave.
Its task is to make sure that the electrical system is safe and efficient. If the power consumption is larger than the power production capacity, load shedding is used to avoid blackout. Other features could be to automatic start and stop consumers (e.g., diesel generators) as the load varies. [1]
Load shedding is a common form of energy rationing used when electricity markets cannot keep up to demand, particularly peak demand. Limited electrical supply from power stations at times of drought or after infrastructure is damaged, can lead authorities to implement rationing. Brazil was forced to implement energy rationing due to drought in ...
Peak demand may exceed the maximum supply levels that the electrical power industry can generate, resulting in power outages and load shedding. This often occurs during heat waves when use of air conditioners and powered fans raises the rate of energy consumption significantly. During a shortage authorities may request the public to curtail ...
Intentional islanding divides an electrical network into fragments with adequate power generation in each fragment to supply that fragment's loads. [7] [8] In practice, balancing generation and load in each fragment is difficult, and often the formation of islands requires temporarily shedding load.