RER107 1MRS090702-MM Energy storage systems play an important role in different scenarios:
On the power side, the mode of new energy + energy storage and hydrogen production from renewable energy is conducive to calming the output fluctuation of new energy, thus promoting the consumption of centralized new energy connected to the grid;
Power grid side: Pumped storage + new energy storage can assist the power grid to achieve peak regulation and frequency modulation needs and improve stability;
Load side: Market mechanisms (such as time-of-use price, power spot trading, demand response, etc.) and distributed new energy can be used to improve the level of energy cleanliness, reduce electricity costs, and also help to ensure the reliability and continuity of load side power supply.
Mining demand side resources
The power system must always maintain a balance between supply and demand. The traditioRER107 1MRS090702-MM nal approach is to increase the output of the generator set when the load demand is high, but the load peak period is often short, in order to meet this part of the demand and increase the power generation and transmission and distribution investment utilization rate is very low, so reduce or delay the power load on the demand side to achieve supply and demand balance, which is the core of the demand side response.
Through solid-state technology to achieve data acquisition, data processing, terminal control integration, can predict and prevent load surge. The flexibility of the power system can be increased by embedding demand management capabilities to respond to load changes in real time.
In 2020, Zhejiang Province, through the participation of power users such as factories, shopping malls, and electric vehicle charging facilities in demand adjustment, uses market means to gather a “resource pool” of 5.77 million kilowatts of peak load cutting and 3.22 million kilowatts of valley filling to achieve peak load cutting and valley filling. It is equivalent to building less than a 5 million kilowatt large-scale power station.
All in all, in the process of low-carbon transformation of new energy instead of traditional fossilRER107 1MRS090702-MM energy, expand and adjust the scale of power supply, and carry out flexible transformation of coal and gas power plants; Increase energy storage capacity, including pumped storage and new types of energy storage; Tap demand side potential, such as demand side response and virtual power plant technology. It will jointly become the basis for building the flexibility and stability of the power grid system, and ensure the large-scale application of new energy.
