Thermal power and energy storage for peak load regulation

How effective is thermal storage peak regulation?

The effectiveness has been verified by the example of the proposed method. The enthusiasm of thermal storage peak regulation can be improved by the pricing strategy of thermal storage peak regulation, which can reduce the operating cost of the system to improve its operation flexibility.

Can thermal power units improve peaking capacity?

The conventional thermal power unit has proven inadequate for meeting the demands of large-scale wind and solar grid integration. To address this issue, the combination of energy storage and deep peaking operation in thermal power units has emerged as a promising approach to enhance the peaking capacity of the system .

Does thermal power unit peaking affect energy storage life?

However, it is important to acknowledge that deep peaking operation in thermal power units and the associated loss of storage life lead to increased operating costs for the system. Hence, it is of utmost significance to accurately assess the degradation of energy storage lifespan and the cost associated with thermal power unit peaking.

How does battery energy storage improve peak regulation?

Introducing battery energy storage for peak regulation reduces the pressure on thermal units, enhances system capacity, and lowers peak regulation costs . In deep peak shaving, battery storage follows the "high discharge, low charging" principle: charging during off-peak hours to increase load and discharging during peak hours to reduce load.

Do thermal power units reduce the demand for peak shaving?

The output power of thermal power units in Scenario 1 and Scenario 2 is shown in Figure 3 A,B, respectively. It is observed that the participation of energy storage in peak shaving can reduce the demand for deep peak shaving during low-load periods in the early morning.

What is the peaking stage of thermal power units?

The peaking stage of thermal power units can be divided into basic peaking and deep peaking. Deep peaking can be further divided into oil injection and non-oil-injection deep peaking.