Why is the power cut off? The reason for the power failure.

1. First of all, coal prices are rising now, and it is difficult for power plants to buy coal. Simply put, the coal is stuck. In this way, as a thermal power plant with peak shaving and valley filling, even if there is a power generation plan, there is no coal to burn and it is impossible to generate electricity; Even if you buy coal, the high price will only lead to the loss of the power plant.

2. Secondly, new energy sources such as wind power and photovoltaic power generation are greatly influenced by seasons and environment. Moreover, electricity itself belongs to non-storable resources and must be practical (not to mention the exaggeration of the high cost of storage batteries), and the electricity consumption has very obvious peak-valley characteristics (specifically, the electricity consumption peaks in the morning and evening and is extremely low in the morning).

3. There is no peak-shaving power plant, and electricity consumption is tight during peak hours. If there is a continuous shortage of useful electricity, the whole power grid will collapse. At this time, only a part of unimportant loads, such as factories and residents, can be limited to ensure more important loads, such as important public equipment, hospitals and schools. So it is necessary to limit electricity to protect the load.