日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
Business
Home / Business / Industries

Country leads way in new energy storage

By LIU YUKUN | China Daily | Updated: 2023-02-24 10:02
Share
Share - WeChat
Employees work on a production line of new energy vehicle batteries in Changzhou, Jiangsu province, on Feb 16. [Photo/Xinhua]

Hydroelectric facilities totaled 8.8 million kW in installed capacity last year, leading to safe, stable power generation

Amid rolling hills and tranquil valleys in Hebei province nestles a grand structure. Capable of harnessing the power of nature and storing and releasing energy as needed, the structure — Fengning Pumped Storage Power Station — is known as the world's largest "power bank".

In the valley where the station stands, a pair of reservoirs have been constructed at different elevations. When there is excess energy in the grid, the station uses that energy to pump water from the lower reservoir to the higher one. And when there is a surge in demand for electricity, the station releases the stored water to generate electricity, just like a power bank discharges its energy to charge a phone.

Since being put into operation, the station has stored and generated 1.4 billion kilowatt-hours of electricity over the past 14 months, supplying electricity sufficient for a year's use for about 500,000 households.

In the past year, 28 facilities for storing power using hydroelectricity, like the Fengning plant, were put into operation, totaling 8.8 million kW in installed capacity, said the China Electricity Council.

As the country continues to move toward a more sustainable energy mix with renewables taking up an increasing share, China's power storage industry is experiencing rapid growth.

As a conventional form of power storage, pumped hydro — which makes up 77.6 percent of the country's total power storage projects — saw its installed capacity reach 45.79 million kW by the end of 2022, ranking tops worldwide, the council said.

The development of new types of power storage like lithium-ion batteries is also on a fast growth track. The latest data from the National Energy Administration showed that as of the end of 2022, the installed capacity of new energy storage projects put into operation nationwide had reached 8.7 million kW, with an average energy storage time of about 2.1 hours, an increase of over 110 percent from the end of 2021.

"Differing from fossil fuels, new energy power generation has higher requirements for the safe and stable operation of power systems. That's because most new energies are intermittent resources, which undergo sudden and random fluctuations. This makes it difficult to realize stable and steady power generation. In addition, it presents challenges to grid stability, such as voltage fluctuations, during power transmission," said Lin Boqiang, head of the China Institute for Studies in Energy Policy at Xiamen University in Fujian province.

In the past, fossil fuels like coal were virtually the only source of electricity, and many grid operators did not store energy because it could be an expensive undertaking. Instead, grid operators had dispatch centers that consistently managed supply to meet demand, and would burn additional coal to ramp up power generation during peak hours.

However, as concerns about climate change and resource depletion grew, the focus of power generation is gradually shifting toward renewable energy resources, such as solar and wind. The problem with these modalities is that they are intermittent and not always available when needed.

The power storage systems being developed in China can store vast amounts of energy generated from renewable sources, such as solar and wind, making it possible to use this clean energy even when the sun isn't shining or the wind isn't blowing. This will help mediate the intermittency issue that has been a major challenge in the widespread adoption of renewable energy.

With massive wind and solar projects set to be installed in the Gobi Desert and other arid areas, the development of power storage is becoming more prominent.

1 2 Next   >>|
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
CLOSE
 
主站蜘蛛池模板: 亚洲欧美日韩中文不卡 | 色综合久久88色综合天天 | 亚洲一区二区三区免费视频 | 亚洲精品久久久一区二区三区 | 欧美一性一乱一交 | 成人在线激情网 | 人人爱人人草 | 在线观看视频91 | 精品国产欧美一区二区 | 夜夜撸夜夜爽 | 一区二区国产精品 | 一个色综合网 | 艹逼视频网 | 无码AV免费一区二区三区A片 | 欧美日韩成人 | 欧美日韩一区精品 | 亚洲精品综合 | 精品日韩欧美国产一区二区 | 777xacom| 欧美精品福利 | 欧美操穴 | concern超碰在线 | 精品一卡2卡三卡4卡免费视频 | 午夜影网| 超级在线牛碰碰视频 | 国产精欧美一区二区三区 | 欧美日韩三区 | 奇米4色| 久久影城 | 欧洲精品在线视频 | 午夜精品一区二区三区免费视频 | 青娱乐免费视频在线观看 | 亚洲精品久久久一区 | aaaaaa毛片| 免费观看影院 | 久久久久久国产精品免费免费狐狸 | 全毛片| 99热久久精品免费精品 | 欧美精品免费在线 | 亚洲人一区 | 99热在线免费 |