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: www.天天操.com | 毛片免费软件 | 国产一区在线免费观看 | 久久无码人妻中文国产 | 日韩欧美在线观看视频 | 国产成人免费全部网站 | 日韩二区 | 欧美一区精品 | 国产精品久久久久久影视 | 99精品视频免费在线观看 | 三极片免费看 | 无码色情影片视频在线看免费 | 99精品电影 | 欧美精品播放 | 久久三区| 午夜色视频在线观看 | 天天草人人草 | 欧美午夜精品久久久久免费视 | 日本三级欧美三级 | 亚洲激情中文 | 国产成人aaa在线视频免费观看 | 啪啪免费 | 日韩综合色| 福利视频二区 | 欧美日韩高清不卡一区二区三区 | 免费色网址 | xifan在线a精品一区二区视频网站 | 在线成人免费观看视频 | 亚洲国产成人av好男人在线观看 | 精品久久国产 | 久在线观看 | 欧美一级视频在线观看欧美 | 久久久久久成人精品 | 亚洲一区二区三区视频 | 免费精品视频在线 | 国产亚洲欧美一区二区 | 亚洲人6666成人观看 | 久草视频官网 | 久久免费福利 | 国产操片 | 日日夜夜视频 |