The paper points out that the step electricity price should be matched with time-sharing price

-This reporter Li Yangdan to the residents of electricity to implement the policy of step electricity prices, through the increase in electricity, cumulative electricity prices to a certain extent, to curb the role of power waste, but a single step price system may make the power grid peak to face a greater test.　　Analysts point out that the combination of the power control of step electricity price and the electricity price regulation of time-sharing electricity price can perfect the demand side management of electricity. The implementation of ladder electricity price can play the role of Price lever, to guide the residents, especially the users with a large amount of electricity to adjust the behavior of electricity, promote reasonable, save electricity, but also take into account the affordability of different residents, not only to ensure that the majority of residents to maintain the basic stability of electricity prices, but also to encourage more users of electricity consumption more affordable electricity,　　Establish a reasonable and fair burden mechanism. However, the implementation of the step electricity price may lead to a more concentrated peak of electricity consumption. In the background of the step electricity price, the higher the electricity price, the more the power consumption has some effect, but the problem is that it can't guide the day and night balance of electricity demand and can not adjust the peak valley of electricity consumption. For example, the high demand for air-conditioning in summer, in the case of a certain basic electricity, in order not to exceed the basic electricity consumption, people are likely to concentrate on the most need to use air-conditioning time, reduce the amount of electricity at other times, which will cause noon or afternoon to become the most concentrated power load time, while the other time the electricity load is lower than usual,　　The power demand in the day to increase fluctuations in the load.　　The construction of power installed capacity is generally referred to the peak of power demand, the total installed capacity only in excess of peak demand, to ensure that any time demand for electricity is met, the peak demand area concentration, the power grid peak capacity and standby power supply construction requirements higher. As of September 20 this year, with the China-Canton nuclear power Plant Phase II project 1th units completed and put into production, our power installed capacity has reached 900 Million-kilowatt, 14 consecutive years ranked second in the world. But even so, in China each summer and winter during the peak period of electricity, some areas will still be too large power load, have to pull off electricity. This is due to the coal capacity constraints caused by thermal power may be limited, on the other hand, also reflects the electricity supply peak capacity to be enhanced.　　But the single step electricity price system may cause the power grid to adjust the peak to face the bigger test. In addition to the price of the ladder, some experts suggest that the electricity price should be implemented at the same time. This electricity price policy and the current China in the local area and industry implementation of Peak Valley electricity price similar, that is, the higher demand for electricity to charge a higher price, this can guide users consciously wrong peak.　　The difference is that time-sharing electricity prices are more detailed at different periods of time. The use of time-sharing electricity price will also be beneficial to the utilization of new energy. For example, wind power is often different from the daily demand load, when the wind is good at night may cause the generation of waste, increase energy storage equipment will increase costs.　　If the price of time-sharing electricity, then the night electricity prices will be relatively low, by saving the night's cheap electricity to replace the day's relatively expensive electricity, is a way to improve the efficiency of new energy use. Electrical energy asA commodity, its price determination also should conform to the market law, is decided by the supply and demand. Some experts put forward that the determination of electricity price from Peak Valley electricity price to time-sharing price, the final form of real-time electricity prices, that is, under the conditions permitted by the real-time supply and demand situation to determine real-time electricity prices.