Large-scale promotion and application of pumped storage

What is pumped storage?

2.1. General concept of pumped storage Pumped storage originates from hydro generator technology, and as an energy storage technology, is commonly used as an auxiliary power service, such as peak shaving, frequency and phase regulation, emergency backup, and maintain the stability of the grid.

What is pumped storage power station (PSPS)?

The pumped storage power station (PSPS) is a special power source that has flexible operation modes and multiple functions. With the rapid economic development in China, the energy demand and the peak-valley load difference of the power grid are continuing to increase.

What is the future of pumped storage?

As stated in the basic forecast scenario of an IRENA outlook report, Electricity Storage and Renewables: Costs and Markets to 2030 , the growth of installed capacity of pumped storage will be approximately 40 % to 50 % by 2030. Some of the current large PSPPs in the world are shown in Table 2. Table 2.

What are the advantages of a pumped storage plant?

tender of the plant. A conventional pumped storage plant will capacities demand and generate during hours, economics on between off-peak prices. flexibility mode changeover become design the advanced solutions (variable speed units, ternary unit short flexibility) assessed. Storage and shutdown make storage extremely and grid stability.

Are pumped storage power plants a problem in China?

To address the problem of unstable large-scale supply of China's renewable energy, the proposal and accelerated growth of new power systems has promoted the construction and development of pumped storage power plants (PSPPs), and the site selection of conventional PSPPs poses a challenge that needs to be addressed urgently.

Why should pumped storage units be localized?

The localization of pumped storage units can bring many direct advantages, such as reduction of the engineering cost, cheap and convenient supply of spare parts, timely after-sale service, which are capable of winning more benefits for the PSPS , .