人工智能(AI)等技术的蓬勃发展带动了中国数据中心的“爆发式增长”,同时也推高了能源消耗和碳排放。
截至2023年底,中国以449个数据中心的数量位居亚太地区之首。
国际能源署(IEA)最新报告显示,2024年中国数据中心用电量已占全球数据中心用电总量的25%,成为仅次于美国的全球第二大电力消耗国。
与各国情况类似,中国数据中心用电量预计将在未来几年持续快速增长,人工智能的兴起是重要推动因素之一。
不过,当前实际需求规模及未来增速仍存在不确定性。
现阶段,其他驱动因素对电力需求增长的影响仍远大于数据中心。
虽然各方对数据中心的预测数据存在差异,但有报告指出,其电力需求可能从2025年的100-200TWh(太瓦时)激增至2030年的600TWh,相应的CO2排放量或将达到200MtCO2e(百万吨二氧化碳当量)。
尽管中央和地方政府已出台多项政策以应对数据中心的环境影响,但挑战依然存在。
电力需求不断增长
中国国务院援引官媒《中国日报》2021年的一份报道称,2020年中国数据中心耗电量达200TWh,约占当年全国总用电量的2.7%,预计到2030年将增至400TWh(占比3.7%)。政府最新数据显示,2022年数据中心用电量为77TWh,2025年预计为150-200TWh,2030年或达400TWh。
2025年初,彭博社援引高盛(Goldman Sachs)更高预估称,中国数据中心的电力需求“预计将增长两倍多(从目前的200TWh),到2030年可能接近600TWh”。

相比之下,国际能源署(IEA)的预测则更为保守,其预计2024年中国数据中心用电量仅为100TWh,到2027年可能翻倍。
无论从占全国电力需求的比重,还是作为需求增长的驱动力来看,数据中心的规模仍然有限。
不同机构的数据显示,当前中国数据中心用电量约占全国总用电量的0.9%至2.7%。
彭博社指出,数据中心的用电量“不到制造业的十分之一”,并提到仅2024年一年,工业用电需求就增加了300TWh。
国际能源署表示,自2022年以来,数据中心仅占新增电力需求的3%,到2027年这一比例可能升至6%。该机构认为,中国电力需求增长的主要推动力来自工业领域,包括工业电气化及供热和交通电气化。
不过,国务院发展研究中心资源与环境政策研究所副主任韩雪表示,到2025年底,数据中心相关的CO2排放量预计将占全国总排放量的1%。
建设“绿色数据中心”
2021年,中国宣布了一项为期三年的行动计划,旨在建设“高效、清洁、集约、循环”的“新型数据中心”。
该行动计划包括提高数据中心PUE(电能利用效率)的措施。PUE是衡量数据中心能源效率最常用的指标。
其计算方式是将数据中心总能耗除以IT设备能耗。该比值越高,表明数据中心的能效越低。
截至行动计划结束,全国数据中心平均PUE已从上年的1.54降至1.48。
2024年提出的新目标是到2025年将大型数据中心的PUE控制在1.25以下。相比之下,拥有欧洲最多数据中心的德国要求现有数据中心从2027年起平均PUE需达到1.5。
与此同时,中国于2022年启动了备受期待的“东数西算”国家工程,旨在处理东部人口稠密省份产生的数据。该项目鼓励在西部太阳能和风能资源丰富的地区建设新数据中心,以支持东部繁忙的大都市。
根据该工程规划,中西部地区的数据中心将处理更多非实时云计算需求,如离线分析和存储备份,而对时效性要求高的数据服务仍由东部地区提供。
内蒙古等北方地区的地方政府也出台了配套政策,推动数据中心与可再生能源设施协同建设。
此外,北京地方政府已为数据中心提供资金支持,用于改善其PUE。而南方科技中心广东省则选择将部分数据中心建在海底,以减少冷却需求并降低能耗。
自2020年起,中国政府持续跟踪数据中心能源转型进展。2024年最新数据显示,全国已有50余个数据中心达到“绿色”能源标准,其中国家电网1个、互联网企业14个。
面临可再生能源挑战
到2030年,中国数据中心预计将消耗400TWh至600TWh的电力,相关排放量可能达到200MtCO2e。
当前,中国可再生能源资源主要集中在北方地区,而电力需求仍集中在东南沿海。这意味着,即便有“东数西算”工程的支持,数据中心通常也依赖于长距离输电来使用可再生能源。
“绿色电力在数据中心行业应用前景广阔,但仍面临诸多挑战。”绿色和平气候与能源资深项目主任吕歆说。
她向Carbon Brief指出:“完成跨省绿色电力交易仍然非常困难。”她解释道,这主要受限于可再生能源发电的不稳定性以及长距离输电线路的高昂运维成本。
中国已出台相关政策,支持绿电直供数据中心,并建设了配备专用可再生能源和储能设施的“绿色电力产业园区”。
“这些政策的推进和市场机制的完善将促进数据中心使用绿电。”吕歆补充道。
另一项挑战是数据中心的用水需求。由于需要大量冷却用水,数据中心可能加剧西部和北部地区本就紧张的水资源压力。
为应对这一问题,北京、宁夏和甘肃等地政府已出台强制性措施,要求提升数据中心用水效率,并逐步淘汰电力和水效率低下的数据中心。
随着数据中心规模不断扩大以满足人工智能运算需求,未来可能出现更多耗电量达数千兆瓦的”超大规模”数据中心,这将带来更大的电力供应压力。在国家整体电力结构中,采用更清洁的燃料组合有助于减少排放。
但研究机构SemiAnalysis指出,由于中国对煤炭的依赖,当前中国数据中心“在排放方面处于明显劣势”。
目前煤炭在中国能源结构中占比约60.5%。国际能源署数据显示,中国大部分数据中心所在的东部地区,约70%电力来自煤电。不过该机构预测,2030年后可再生能源与核能的快速发展将“推动煤炭的退出”。
该报告预计,到2035年,可再生能源和核能将“共同满足中国数据中心60%的电力供应”。
The post 解读:中国如何应对数据中心能源增长的需求 appeared first on Carbon Brief.
Climate Change
Energy transition policymaking must evolve to fit an age of rupture
Andreas Sieber is head of political strategy at 350.0g. Cat Abreu is director of the International Climate Politics Hub.
From the US abduction of Venezuela’s president at the start of this year to the Iran war which rumbles on, disruption is the new normal for global geopolitics, more often than not linked to conflict over supplies of oil and gas.
Events so far in 2026 – driven largely by the desire of the Trump administration to grab control of fossil fuels around the world – show that the climate community’s approach to energy diplomacy will have to evolve if we are to operate effectively and push for climate action in such a volatile landscape.
Today’s climate and energy governance must be able to cope with trade wars, genocide, fascism, spiralling inequality and challenges to multilateralism. The increasingly dominant paradigms of economic competitiveness, energy security and green industrialisation can help drive the transition but they also challenge our collective mission to deliver an equitable green shift.
US-China rivalry dominates
Longer-term geopolitical trends that are seeing power move from West to East and North to South have fuelled a US–China “superpower rivalry”, which is pulling the global economy apart and reining in trade.
A key question will be how the fracture “lines” are drawn: by the US and China, or also by other countries or blocs? Many governments will try to remain “in the middle” between the two giants to capture economic gains from both sides. Yet despite the language of “strategic autonomy”, Washington and Beijing may be in a position to force choices via market access, export controls and sanctions.
At first glance, this may not seem particularly relevant for climate and energy politics. But Huawei’s exclusion from 5G operations across the political West and India following the so-called Clean Network Campaign by the US government serves as a warning of what could happen to climate green tech.
And the recent debate to cut out Chinese inverters from European markets follows the same pattern – US security forces perceive a risk and start encouraging their allies to drop Chinese technology.
The new drivers: competition and security
Despite this fracturing geopolitical and economic context, energy transition is still happening. To ensure it is effective and equitable, we need to understand what is driving it and how to adapt climate politics so that it better responds to these drivers.
Put simply, China is supplying the world with low-cost renewables (roughly 60% of critical wind and 80% of solar components), batteries, EVs and other key elements. Other countries now also want their piece of the green tech pie and are forming industrial policies to get it.
It is this new competitiveness-driven logic that will shape the quest for decarbonisation, which has shifted from cooperating around the cost of tackling climate change to rivalry for the benefits of climate action.
Over 90% of new renewables projects are now cheaper than fossil alternatives. Gas-fired power is 3–4 times more expensive than solar and wind. In 2015, most decarbonisation policies were “traditional” emissions-cutting strategies like carbon pricing or net zero dates, whereas green industrial policies now underpin the majority.
Iran war could boost fossil fuel phase-out push, says Colombian minister
Meanwhile, security has become a central driver of energy politics. We are living through the second major fossil fuel crisis in just four years. Elevated oil and gas prices will impose up to $1 trillion in additional costs on the global economy by the end of the year if disruption continues in the Strait of Hormuz. Fossil fuel supply chains have exposed countries to conflict, coercion and brutal price shocks.
Fossil fuel volatility destabilises whole economies – higher fuel costs drive up food prices, increase political instability, and push millions into poverty and hunger. This incentivises governments to shield themselves from global shocks, especially in countries that are net fossil fuel importers and home to roughly three-quarters of the world’s population.
Yet security fears can cut both ways. The same instability that makes fossil fuel dependence untenable is also sharpening concern over China’s dominance of critical clean technologies and supply chains.
Equity, cooperation and the opportunity for change
Developing countries benefit from the rapid uptake of renewables enabled by low-cost Chinese technologies. But significant fiscal space and public investment is needed for the electricity grids and infrastructure required to fully unleash the energy transition, as well as for green industrialisation to diversify revenue streams.
Despite this, industrial-scale domestic production and ownership often remain out of reach for too many countries that lack the fiscal space to allow green supply chains to flourish and compete with their traditional industrial base. But more just and diversified green tech supply chains could be achieved with concomitant support.
Can giant batteries unlock Africa’s green industrial future?
For the first time in decades, the international order is being substantially reshaped. If within this context, decarbonisation is increasingly driven by green industrial policy, energy security and competitiveness, the climate policy community must better anticipate where these debates are moving. We must speak the same language, and enter the forums where decisions are made, including security, trade and bilateral or trilateral spaces.
We should build on an enlightened self interest recognising that cooperation remains essential and beneficial. This includes using the UN climate process differently: less as an ever-expanding negotiation machine, and more as a space for norm-setting, political alignment and deal-making. In an age of fragmentation, effective cooperation must not only be framed as necessary but thought of as a strategically compelling source of resilience and shared advantage.
The post Energy transition policymaking must evolve to fit an age of rupture appeared first on Climate Home News.
Energy transition policymaking must evolve to fit an age of rupture
Climate Change
Extreme heat costing India’s poorest workers 2% of GDP, survey finds
Low-income Indian workers, many of them migrants from rural areas hit by climate change, are paying for worsening extreme heat through lost working days and health complications, with the cost equivalent to 2% of national GDP per year, new research shows.
The International Institute of Environment and Development (IIED), a London-based think-tank, worked with local organisations to survey around 540 households of informal workers in three Indian cities: Ajmer, Delhi and Agra. Most had migrated from rural areas to find work in industries such as construction, brick-making, garment manufacturing and food packaging.
The survey found them struggling through long working days with little access to shade, cooling, rest or water, as well as few toilets for women. And even when they go home, many live in makeshift shelters or airless cramped rooms with barely a single fan, bringing almost no respite.
Outdoor workers are losing about 24 days of work a year due to heat, costing them nearly a tenth of their annual earnings, while indoor workers sacrifice roughly 15 days. On top of losing income, they are also bearing the cost of health problems like heat exhaustion, psychological stress and kidney damage brought on by repeated dehydration.
If the survey’s findings are extrapolated to a national level, the IIED researchers estimate that the decline in productivity and effects of kidney disease combined add up to lost wages of $78 billion each year.
Vishram Meena, 45, from Alwar in Rajasthan, has worked on construction sites in Ajmer for more than a decade, toiling for 10 to 12 hours a day carrying materials and mixing cement in the full sun.
In May 2024, on one of the hottest days, he collapsed after feeling dizzy and suffering a nosebleed. His wife and colleagues managed to get him to hospital where he was diagnosed with heat stroke. He has since returned to the same building work because the family needs the money.
“I went back because what else could I do? We are not machines. We are human beings. The heat is killing us slowly,” he was quoted as saying in a report on the survey’s findings.
“Victorian-era” conditions
Ritu Bharadwaj, IIED’s director of climate resilience, finance and loss and damage, described some of the stories from workers about their experiences of extreme heat as “genuinely horrifying”.
Kusum, a tailor at a garment manufacturing and export unit in Kapashera, Delhi, recounted how the machines for ironing finished garments are in the same tiny room where workers are making the clothes, with steam and hot air building up through her shift.
Fans are too far apart to move the air and nothing has changed in over a decade, she said, adding that “in summer, the unit feels like a furnace”.
“These are Victorian-era working conditions and they’re completely unacceptable in the 21st century,” said Bharadwaj. She called for stepped-up social protection from the government to pay people for days they are unable work due to heat, as well as micro-insurance schemes with payouts triggered by temperature measurements.
This money would help families buy food and pay medical bills when their income dips if they fall ill or cannot work their usual hours due to soaring temperatures.
Climate change-driven heatwaves hit Delhi’s Red Fort market traders
The aim of the IIED study, Bharadwaj added, is to get policy-makers’ attention by showing the scale of damage extreme heat is doing to India’s GDP in an economy whose growth relies on service-led industries. “If the workers within them start falling sick, you know it’s the economic growth which is going to get impacted,” she told a webinar to present the research.
“Whether [policymakers] care about the workers or not, at least they would care about the GDP, and therefore then invest in their care,” she explained.
Labour code leaves out heat
However, Bharadwaj noted that a 2026 reform to India’s labour law bringing a range of regulations together in one code does not include heat-related protections for workers and only applies to businesses above a certain size. She urged the government to introduce a temperature threshold above which all workers would be able to stop their activities.
IIED and its partners have also carried out a similar study in Bangladesh which will be published later this month, showing that extreme heat is costing its workforce the equivalent of nearly 1.4% of GDP.
Shakirul Islam, chairperson of the Ovibashi Karmi Unnayan Program (OKUP) in Bangladesh, said the government had introduced stricter safety policies for garment-making companies after the Rana Plaza complex collapsed in 2013. But, he said, these rules are rarely followed by manufacturers, especially at the level of smaller subcontractors.
The workers’ welfare centres that do exist are open mainly during work hours so they are difficult to visit. Some companies also make saline water available for heat stress, which is no good for those with high blood pressure, he noted.
For Indian women workers, a just transition means surviving climate impacts with dignity
Archana Shukla Mukherjee, CEO of India’s Change Alliance, which also partnered with IIED on the survey, said it was time to hold both the government and businesses accountable for finding solutions to the intensifying problem of extreme heat’s effects on workers.
She said that employee state insurance schemes should identify heat stroke as an occupational disease while companies along the whole supply chain should start putting in place heat protection measures, including for informal workers and migrants.
If the tools and mechanisms available to help workers do not reach the most vulnerable and marginalised people, “then I think we are not doing something right,” she said.
The post Extreme heat costing India’s poorest workers 2% of GDP, survey finds appeared first on Climate Home News.
Extreme heat costing India’s poorest workers 2% of GDP, survey finds
Climate Change
Top maritime court rejects bid to halt UN deep-sea mining inquiry
A United Nations investigation into deep-sea mining firms will continue after the world’s top maritime court rejected their bid to suspend the inquiry triggered by a US-backed push to extract critical minerals from the ocean floor.
In two orders issued on Saturday, the International Tribunal for the Law of the Sea (ITLOS) declined to halt an inquiry launched by the International Seabed Authority (ISA) into whether permit holders, including Tonga Offshore Mining Ltd (TOML) and Nauru Ocean Resources Inc (NORI), have breached their obligations under UN exploration contracts.
The two companies are subsidiaries of Canadian firm The Metals Company (TMC), which earlier this year sought permits from the United States to commercially mine the deep seabed in an area already covered by its UN exploration licences, bypassing the ISA’s regulatory process.
The inquiry was opened after TMC’s move raised questions over whether its subsidiaries had complied with their contractual obligations to the ISA, which regulates mining in international waters under the UN Convention on the Law of the Sea. TOML and NORI sued the ISA last June for allegedly targeting them “in breach of due process” and without “good faith”.
While allowing the inquiry to proceed, the court ordered the ISA to ensure the companies receive due process. Judges said the regulator must explain the factual and legal basis of its inquiry, clarify the procedures being followed and provide TOML and NORI with a meaningful opportunity to respond.
The companies seeks to mine an area called the Clarion-Clipperton Zone, which holds vast reserves of critical minerals like nickel, manganese and rare earths but is also home to a little-studied deep ocean ecosystem with thousands of unnamed species.
In response to the court’s ruling, the ISA welcomed the decision, saying the inquiry “remains in effect” and would continue “with due regard to all applicable legal requirements”.
Last week, during an annual meeting of its member governments, ISA secretary-general Leticia Carvalho said the resources in the ocean floor are “the common heritage of humankind” and upheld the agency’s role as “more important than ever”.
TMC also welcomed the court decision in a statement and claimed that judges ruled to “protect the rights of TMC subsidiaries”.
“Contractors like NORI and TOML, who have together spent hundreds of millions of dollars on the promise of a fair regulatory framework, should be informed of the factual and legal basis of any non-compliance inquiries, understand the procedure being applied, and receive a meaningful opportunity to respond,” said Gerard Barron, CEO of The Metals Company.

Environmental groups said the ruling allows scrutiny of the companies’ actions to continue.
Louisa Casson, deep-sea mining campaigner with Greenpeace, said the “entire litigation has been an egregious waste of time and money”, which was part of the industry’s “textbook distraction tactic” meant to delay the consequences of the inquiry.
“If the inquiry confirms that TMC’s subsidiaries are breaching their contracts, governments must send the strongest possible signal that complicity in unlawful deep sea mining will not be tolerated,” she said.
While investigation is still ongoing, NORI’s contract is set to expire this week and is up for review. Governments asked the ISA to report back and make “make appropriate recommendations” by the next ISA assembly, its main decision-making body set to take place next week from July 27 to 31.
The court ordered both the ISA and TMC to submit a report on how they complied with the ruling by August 31, and called on both to “cooperate and refrain from any action that might lead to
aggravating the dispute”.
The post Top maritime court rejects bid to halt UN deep-sea mining inquiry appeared first on Climate Home News.
Top maritime court rejects bid to halt UN deep-sea mining inquiry
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