Energy storage layout of the five major power generation groups

What are the different types of energy storage technologies?

Depending on how energy is stored, storage technologies can be broadly divided into the following three categories: thermal, electrical and hydrogen (ammonia). The electrical category is further divided into electrochemical, mechanical and electromagnetic (Figure 2).

How many electrochemical storage stations are there in China?

In terms of developments in China, 19 members of the National Power Safety Production Committee operated a total of 472 electrochemical storage stations as of the end of 2022, with a total stored energy of 14.1GWh, a year-on-year increase of 127%.

What is the implementation plan for the development of new energy storage?

In January 2022, the National Development and Reform Commission and the National Energy Administration jointly issued the Implementation Plan for the Development of New Energy Storage during the 14th Five-Year Plan Period, emphasizing the fundamental role of new energy storage technologies in a new power system.

What are independent energy storage stations?

Independent energy storage stations are a future trend among generators and grids in developing energy storage projects. They can be monitored and scheduled by power grids when connected to automated scheduling systems and meet the relevant standards, regulations and requirements applicable to power market entities.

Which energy storage projects have a low utilisation co-efficient?

According to a survey by the China Electricity Council, new energy distribution and storage projects have a low equivalent utilisation co-efficient of 6.1%, the lowest among the application scenarios, while the average for electrochemical energy storage projects is 12.2% (Figure 8).

Why are energy storage facilities important?

"Energy storage facilities are vital for promoting green energy transition with substantial potential, as the central government calls for a new energy-based power system," said Wei Hanyang, a power market analyst at research firm BloombergNEF.