1. The peak period is when the electricity consumption is high, with many users and large electricity consumption. There will be a power shortage in the power grid and the system frequency will drop, which will probably happen from 8 am to 5 pm.
2. Level refers to electricity consumption. Under the condition of normal and reasonable use, the power grid has sufficient power supply and stable frequency. This period usually occurs from 5 pm to 9 pm.
3. In the valley, that is, the low valley at night, there will be excess power in the power grid, and the frequency will rise, which will also cause imbalance, leading to the economic loss of the power supply system. Rationality generally appears from 9 pm to 7 am.
Extended data
Electricity price system
In real life, electricity price is formed by combining the above factors. China's current electricity price system is divided into three categories: domestic lighting electricity, non-industrial electricity, ordinary industrial electricity, large-scale industrial electricity and agricultural electricity according to the user's purpose supplemented by the size of capacity, and is priced separately.
In foreign countries, the electricity price of living and lighting is generally higher than that of industrial electricity, which is higher than that of agriculture, while in China, industrial electricity is higher than that of living and lighting.
At the same time, different electricity price structures are set up according to different types of demand and different requirements reflecting the composition of power supply cost, some are single-part system and some are two-part system, and are divided into several grades according to different voltages. Most countries in the world adopt this matrix electricity price meter. Some countries and regions have implemented time-of-use electricity prices, with remarkable results.
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