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
For proof of the energy transition’s resilience, look at what it’s up against
Al-Karim Govindji is the global head of public affairs for energy systems at DNV, an independent assurance and risk management provider, operating in more than 100 countries.
Optimism that this year may be less eventful than those that have preceded it have already been dealt a big blow – and we’re just weeks into 2026. Events in Venezuela, protests in Iran and a potential diplomatic crisis over Greenland all spell a continuation of the unpredictability that has now become the norm.
As is so often the case, it is impossible to separate energy and the industry that provides it from the geopolitical incidents shaping the future. Increasingly we hear the phrase ‘the past is a foreign country’, but for those working in oil and gas, offshore wind, and everything in between, this sentiment rings truer every day. More than 10 years on from the signing of the Paris Agreement, the sector and the world around it is unrecognisable.
The decade has, to date, been defined by a gritty reality – geopolitical friction, trade barriers and shifting domestic priorities – and amidst policy reversals in major economies, it is tempting to conclude that the transition is stalling.
Truth, however, is so often found in the numbers – and DNV’s Energy Transition Outlook 2025 should act as a tonic for those feeling downhearted about the state of play.
While the transition is becoming more fragmented and slower than required, it is being propelled by a new, powerful logic found at the intersection between national energy security and unbeatable renewable economics.
A diverging global trajectory
The transition is no longer a single, uniform movement; rather, we are seeing a widening “execution gap” between mature technologies and those still finding their feet. Driven by China’s massive industrial scaling, solar PV, onshore wind and battery storage have reached a price point where they are virtually unstoppable.
These variable renewables are projected to account for 32% of global power by 2030, surging to over half of the world’s electricity by 2040. This shift signals the end of coal and gas dominance, with the fossil fuel share of the power sector expected to collapse from 59% today to just 4% by 2060.
Conversely, technologies that require heavy subsidies or consistent long-term policy, the likes of hydrogen derivatives (ammonia and methanol), floating wind and carbon capture, are struggling to gain traction.
Our forecast for hydrogen’s share in the 2050 energy mix has been downgraded from 4.8% to 3.5% over the last three years, as large-scale commercialisation for these “hard-to-abate” solutions is pushed back into the 2040s.
Regional friction and the security paradigm
Policy volatility remains a significant risk to transition timelines across the globe, most notably in North America. Recently we have seen the US pivot its policy to favour fossil fuel promotion, something that is only likely to increase under the current administration.
Invariably this creates measurable drag, with our research suggesting the region will emit 500-1,000 Mt more CO₂ annually through 2050 than previously projected.
China, conversely, continues to shatter energy transition records, installing over half of the world’s solar and 60% of its wind capacity.
In Europe and Asia, energy policy is increasingly viewed through the lens of sovereignty; renewables are no longer just ‘green’, they are ‘domestic’, ‘indigenous’, ‘homegrown’. They offer a way to reduce reliance on volatile international fuel markets and protect industrial competitiveness.
Grids and the AI variable
As we move toward a future where electricity’s share of energy demand doubles to 43% by 2060, we are hitting a physical wall, namely the power grid.
In Europe, this ‘gridlock’ is already a much-discussed issue and without faster infrastructure expansion, wind and solar deployment will be constrained by 8% and 16% respectively by 2035.
Comment: To break its coal habit, China should look to California’s progress on batteries
This pressure is compounded by the rise of Artificial Intelligence (AI). While AI will represent only 3% of global electricity use by 2040, its concentration in North American data centres means it will consume a staggering 12% of the region’s power demand.
This localized hunger for power threatens to slow the retirement of fossil fuel plants as utilities struggle to meet surging base-load requirements.
The offshore resurgence
Despite recent headlines regarding supply chain inflation and project cancellations, the long-term outlook for offshore energy remains robust.
We anticipate a strong resurgence post-2030 as costs stabilise and supply chains mature, positioning offshore wind as a central pillar of energy-secure systems.
Governments defend clean energy transition as US snubs renewables agency
A new trend is also emerging in behind-the-meter offshore power, where hybrid floating platforms that combine wind and solar will power subsea operations and maritime hubs, effectively bypassing grid bottlenecks while decarbonising oil and gas infrastructure.
2.2C – a reality check
Global CO₂ emissions are finally expected to have peaked in 2025, but the descent will be gradual.
On our current path, the 1.5C carbon budget will be exhausted by 2029, leading the world toward 2.2C of warming by the end of the century.
Still, the transition is not failing – but it is changing shape, moving away from a policy-led “green dream” toward a market-led “industrial reality”.
For the ocean and energy sectors, the strategy for the next decade is clear. Scale the technologies that are winning today, aggressively unblock the infrastructure bottlenecks of tomorrow, and plan for a future that will, once again, look wholly different.
The post For proof of the energy transition’s resilience, look at what it’s up against appeared first on Climate Home News.
For proof of the energy transition’s resilience, look at what it’s up against
Climate Change
Post-COP 30 Modeling Shows World Is Far Off Track for Climate Goals
A new MIT Global Change Outlook finds current climate policies and economic indicators put the world on track for dangerous warming.
After yet another international climate summit ended last fall without binding commitments to phase out fossil fuels, a leading global climate model is offering a stark forecast for the decades ahead.
Post-COP 30 Modeling Shows World Is Far Off Track for Climate Goals
Climate Change
IMO head: Shipping decarbonisation “has started” despite green deal delay
The head of the United Nations body governing the global shipping industry has said that greenhouse gases from the global shipping industry will fall, whether or not the sector’s “Net Zero Framework” to cut emissions is adopted in October.
Arsenio Dominguez, secretary-general of the International Maritime Organization, told a new year’s press conference in London on Friday that, even if governments don’t sign up to the framework later this year as planned, the clean-up of the industry responsible for 3% of global emissions will continue.
“I reiterate my call to industry that the decarbonisation has started. There’s lots of research and development that is ongoing. There’s new plans on alternative fuels like methanol and ammonia that continue to evolve,” he told journalists.
He said he has not heard any government dispute a set of decarbonisation goals agreed in 2023. These include targets to reduce emissions 20-30% on 2008 levels by 2030 and then to reach net zero emissions “by or around, i.e. close to 2050”.
Dominguez said the 2030 emissions reduction target could be reached, although a goal for shipping to use at least 5% clean fuels by 2030 would be difficult to meet because their cost will remain high until at least the 2030s. The goals agreed in 2023 also included cutting emissions by 70-80% by 2040.
In October 2025, a decision on a proposed framework of practical measures to achieve the goals, which aims to incentivise shipowners to go green by taxing polluting ships and subsidising cleaner ones, was postponed by a year after a narrow vote by governments.
Ahead of that vote, the US threatened governments and their officials with sanctions, tariffs and visa restrictions – and President Donald Trump called the framework a “Green New Scam Tax on Shipping”.
Dominguez said at Friday’s press conference that he had not received any official complaints about the US’s behaviour at last October’s meeting but – without naming names – he called on nations to be “more respectful” at the IMO. He added that he did not think the US would leave the IMO, saying Washington had engaged constructively on the organisation’s budget and plans.
EU urged to clarify ETS position
The European Union – along with Brazil and Pacific island nations – pushed hard for the framework to be adopted in October. Some developing countries were concerned that the EU would retain its charges for polluting ships under its emissions trading scheme (ETS), even if the Net Zero Framework was passed, leading to ships travelling to and from the EU being charged twice.
This was an uncertainty that the US and Saudi Arabia exploited at the meeting to try and win over wavering developing countries. Most African, Asian and Caribbean nations voted for a delay.
On Friday, Dominguez called on the EU “to clarify their position on the review of the ETS, in order that as we move forward, we actually don’t have two systems that are going to be basically looking for the same the same goal, the same objective.”
He said he would continue to speak to EU member states, “to maintain the conversations in here, rather than move forward into fragmentation, because that will have a very detrimental effect in shipping”. “That would really create difficulties for operators, that would increase the cost, and everybody’s going to suffer from it,” he added.
The IMO’s marine environment protection committee, in which governments discuss climate strategy, will meet in April although the Net Zero Framework is not scheduled to be officially discussed until October.
The post IMO head: Shipping decarbonisation “has started” despite green deal delay appeared first on Climate Home News.
IMO head: Shipping decarbonisation “has started” despite green deal delay
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