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What is the lack of electricity?
Power shortage means that the power supply capacity is less than the sum of the total power demand and the reserve capacity of the power grid in a period of time, that is, the power supply is short.

In view of short-term local power shortage, power plants can increase power supply by increasing unit output, increasing equipment utilization hours, and turning on standby units to meet power demand. In the case of insufficient spare customers, if the demand for electricity increases strongly, the power supply will continue to be lower than the demand for electricity, which is what we usually call power shortage.

The so-called lack of electricity means that at a certain price level, the buyer is willing to buy more electricity than the seller is willing to sell. According to the degree of power shortage, power shortage can be divided into general power shortage, serious power shortage and power crisis. The general criterion for judging power shortage is that there is no shortage of standby power supply and electricity consumption in the power grid, and the power load rate can be maintained within a reasonable range.