Energy storage system to help new energy development into the fast lane
Energy storage system to help new energy development into the fast lane
Nowadays, the continuous growth of energy demand, "double carbon" goal of accelerating the transformation of the energy structure, with photovoltaic, wind power-based renewable energy gradually become an important part of the new energy system. According to the National Energy Board statistics, only in 2022, China's photovoltaic, wind power installed capacity of more than 120 million kilowatts, accounting for 78% of the country's new installed capacity, the new photovoltaic, wind power generation accounted for more than 55% of the country's new power generation.
From the market prospect, new energy is gradually replacing the traditional coal-fired power generation, becoming the vital force of China's power market, and its commercial value has been highly recognized.
With the photovoltaic, wind power-based new energy power generation market space is gradually opened, its own exposed shortcomings are also apparent. Whether it is photovoltaic power generation or wind power generation, are susceptible to weather, geographic environment and other factors, with volatility, intermittency and instability.
Therefore, the development and application of energy storage system technology can make up for the shortcomings of the new power system with new energy as the main body, realize the load balance of the grid, effectively suppress the fluctuation of the grid, and improve the utilization rate of new energy.
Power generation side
On the power generation side, the energy storage system realizes the balance of electricity load by shaving peaks and filling valleys. That is, when the electricity load is in the trough, the energy storage system is charged, and in the peak hours of the electricity load, the energy storage system releases the stored electricity to achieve the purpose of peak and frequency adjustment.
Take photovoltaic power generation as an example, light intensity and market changes, are enough to affect the stable output of power. This requires a supporting energy storage system in order to improve energy utilization, achieve output power smoothing, and reduce the impact on the power grid.
Grid Side
In terms of new energy generation methods such as photovoltaic and wind power alone, frequency fluctuations will affect the safe and efficient operation of power generation and power equipment. The energy storage system can play a role in this process by quickly adjusting the frequency and ensuring the smooth operation of the equipment.
On the upstream of the grid side, when the line is blocked, the energy storage system can apportion the excess power and store it. When the line load is reduced, it is then discharged to the line. Paired with a transmission and distribution system, it can increase the transmission and distribution capacity of the grid through a smaller installed capacity and reduce the construction cost of transmission and distribution facilities.
User Side
When it comes to user-side applications, the energy storage system is even more extensive, and can be used as a backup power source for industry and commerce to improve the stability of power supply. When power limit or power failure occurs, power supply through the energy storage system, avoiding the loss of power interruption to the enterprise.
In photovoltaic power generation, the energy storage system can store excess power, this part of the power in the high price of electricity to release, reduce the overall operation and maintenance costs, and then realize the peak and valley arbitrage.
In this year's two years, "new energy + energy storage" model has become a hot topic of discussion among delegates, is expected to 2025, China's new energy storage installed capacity will reach more than 30 million kilowatts.
The scale of the energy storage industry is growing rapidly, forming a more stable business model, energy storage technology has completed the leap from running, running parallel to leading. Belonging to the energy storage tomorrow, has come.