20 mandatory energy storage

How much energy storage does a renewable company need?

Under the mandate, which applies in dozens of provinces, renewable companies are required to include a certain amount of energy storage capacity alongside new solar and wind generation projects, with the storage allocation rate ranging between 5% to 20%.

Are battery energy storage systems a viable option?

The renewables growth is posing growing challenges to the grid, and some provincial governments have already upped their mandatory ratios for energy storage projects to 20%, up from 10% a couple of years ago. However, as the electricity market continues to evolve, standalone battery energy storage systems are emerging as the preferred option.

How many energy storage projects were approved in 2021?

In 2021, there were 136 approved energy storage projects, comprising 131 electrochemical and 5 pumped hydro storage projects.

What is China's energy storage strategy?

Localities have reiterated the central government’s goal of developing an integrated format of “new energy + storage” (such as “solar + storage”), with a required energy storage allocation rate of between 10% and 20%. China has created an energy storage ecosystem with players throughout the supply chain.

Can energy storage solve renewable intermittency issues?

To achieve this target, energy storage is one of the most promising solutions for addressing renewable intermittency issues by balancing electricity demand and supply, which is increasingly a challenge in power systems.

What is the utilization rate of new energy storage in China?

According to Shu Yinbiao, an academician at the Chinese Academy of Engineering, the utilization rate of new energy storage in China is not high, with the average utilization rate indexes for grid-side, user-side, and mandatory allocation of new energy storage projects reaching 38 percent, 65 percent and 17 percent, respectively.