中国的气候和能源政策呈现出一种悖论:在以惊人的速度发展清洁能源的同时,也未停下新建燃煤电厂的步伐。
仅在2023年,中国就新建了70吉瓦(GW)的煤电装机容量,比2019年增长了四倍,占当年全球新增煤电装机容量的95%。
煤电产能的激增引发了人们对中国二氧化碳(CO2)排放和气候目标能否实现,以及对未来出现搁浅资产风险的担忧。
由于光伏和风能发电量不稳定,中国政府将煤炭作为保障能源安全和满足快速增长的用电高峰的手段。
与此同时,中国的电力行业在成本、需求模式、监管和市场运作方面正在发生重大变化。我们的新研究表明,用于证明新煤炭产能合理性的传统经济计算方式可能已经过时。
我们使用一个简单的分析指标来评估能满足用电高峰需求的最经济方式是什么。结果表明,光伏加电池储能的组合可能是比新建煤电更具成本效益的选择。
中国电力格局发生了怎样的变化?
在过去十年里,可再生能源和电池储能的成本大幅下降,高峰时段的住宅和商业用电需求激增,电力交易市场获得了更大的吸引力。
与此同时,中国还宣布了“双碳”目标,即在2030年前实现碳达峰、2060年前实现碳中和。鉴于这些转型,建设更多未减排的煤电厂与中国的长期气候承诺相冲突,而且对满足用电需求对增长来说,可能不再是最具成本效益的选择。它还占用了清洁能源系统转型急需的资金。
替代指标如何评估成本?
我们的研究引入了一种替代指标,用于计算在满足不断增长的高峰用电需求的情况下,所需的最优成本投资。

这一指标,即“净容量成本”(net capacity cost),是满足用电高峰需求所需的基础设施投资的年化固定成本,减去该设施带给电力市场的收入,或其“系统价值”(system value)。 在该指标中,负数意味着这些投资将带来利润,而非支出。
为了探索在中国使用的情境,我们使用了一个简单的例子:在一个假定省份,高峰用电需求增加了1500兆瓦(MW)、全年需求增加了6570吉瓦时(GWh)。
然后,我们概述了满足高峰和全年能源需求的五种策略(情况),其涵盖了从严重依赖煤电到光伏和电池储能相结合的方式。
在不同的案例中,资源衡量的规模基于它们能够可靠地满足高峰供应需求和年度能源需求的程度。
- 情况1:新的煤炭发电能力可满足高峰和年度能源需求的所有增长。
- 情况2:光伏可满足70%的年度能源需求增长,煤炭可满足30%的年度能源需求增长;光伏可满足525兆瓦的高峰供应需求(由于光伏发电可能不在高峰期间,因此基于“容量可信度”进行折减),而煤电可提供剩余的975兆瓦。
- 情况3:光伏可满足所有年度能源需求增长;光伏和煤炭均可满足750兆瓦的高峰供应需求,同样通过容量可信度对光伏发电量进行折减。
- 情况4:光伏满足所有年度能源需求增长;光伏和电池均为高峰供电需求提供750兆瓦;电池提供调频储备(用于管理精确至分钟的供需差异的备用电源)。
- 情况5:光伏满足所有年度能源需求增长;广泛和电池均为高峰供电需求提供750兆瓦;电池提供能源套利(在价格或成本较低时充电,在价格或成本较高时放电)。
如下图所示,我们针对每种情况都计算了单个资源(煤、电池或光伏),以及整个系统每年获得1千瓦(kW)发电容量的年净成本,单位为人民币元。
表上半部分的资源净容量成本是指该资源的净成本(即年化固定成本减去该资源从提供能源和辅助服务,如调频,所获得的年收入)。正数表示电网运营商在增加或获取该资源时的净成本。
表下半部分的系统总净容量成本,是在每种情况下利用资源组合满足高峰需求增长的净成本。
我们用于计算系统净成本的权重是基于装机容量与高峰需求增长的比率。
不同能源组合满足用电需求的成本
| 情况 1 | 情况 2 | 情况 3 | 情况 4 | 情况 5 | |
|---|---|---|---|---|---|
| 资源净容量成本 (元/千瓦/年, 每千瓦装机容量) | |||||
| 煤炭 | 424 | 424 | 512 | ||
| 电池 | 248 | 781 | |||
| 光伏 | -128 | -128 | -128 | -128 | |
| 系统净容量成本 (元/千瓦/年, 每千瓦满足高峰用电需求且折减容量可信度后) | |||||
| 煤炭 | 471 | 306 | 236 | ||
| 电池 | 138 | 434 | |||
| 光伏 | -223 | -319 | -319 | -319 | |
| 总计 | 471 | 83 | -83 | -181 | 115 |
为了对这一简单分析进行压力测试,我们研究了不同来源的各种价格的敏感性。
由于中国的光伏价格已经很低,我们的敏感性分析主要集中在煤炭、电池和其他分析所需投入的价格上。
满足高峰用电需求最经济的方法是什么?
我们的结果表明,当电池储能提供调频储备时(情况4),光伏和储能的组合是满足高峰用电需求增长最具成本效益的选择。
在这种组合下,每获得1千瓦发电装机容量,电网运营商的成本为-181元(约-25美元或-20英镑)。
相比之下,新建煤电产能以满足高峰用电需求增长(情况1)是最昂贵的方案,每获得1千瓦装机容量的净容量成本为471元(约合65美元或52英镑)。
情况3,即大型煤电厂仅用作备用电源(几乎不发电),在中国可能出于政治原因而至少在短期内不可行。
另外两种情况(情况2和情况5)更具可比性,但鉴于自本分析报告发布以来,电池价格下降了30%以上,约为每瓦时(Wh)1元人民币(约合0.14美元或0.11英镑),因此情况5中的电池可能比情况2中的煤炭更具经济吸引力。
我们的解决方案如何助力中国实现气候目标?
我们的分析表明,为了应对不断变化的形势,在满足中国日益增长的能源需求的同时,实现其气候目标的近期战略是将电池储能纳入电力市场。
目前,中国政府允许包括电池在内的“新型储能”参与电力市场。然而,详细规定尚不明确,电池的参与可以更简单。
例如,电池储能不被允许提供“运转储备”,即为应对意外的供需误差所预留的发电量。如果允许电池储能提供运转储备,将增强其商业价值。
允许电池储能更多地参与市场将促进电池储能系统的持续创新和降低成本,同时为系统运营商提供宝贵的运营经验。
这种策略将与市场效益相符,并反映美国和欧洲近期的电力市场经验。
这也将有助于解决近期的产能和能源需求,因为电池和光伏发电通常比燃煤电厂的建设速度更快。
此外,它还有助于缓解未来新增燃煤发电与可再生能源之间的冲突。主要作为可再生能源发电备用电源的新建燃煤电厂要么很少运营,要么侵占了其他现有煤炭发电厂的运营时间和净收入,从而产生新搁浅资产的风险。
通过继续进行电力市场改革,也将促进对可再生能源发电和电力储存进行更有效的投资。
允许市场制定批发市场电价、允许可再生能源发电和电力储存参与批发市场,这可以提高其收入和利润。
此外,改革还将鼓励高效利用储能,这是我们的关键发现。储能可以为电力系统提供多种功能;批发电价有助于引导储能运营以最低的成本实现具有最高价值的功能。
中国国家能源局最近发出指令,要求将新型储能设施(非抽水蓄能)纳入电网调度运行,这是向我们概述的改革迈出的一步。
可能需要进一步确定适当的补偿机制,例如在某些省份对此类储能设施提供的所有服务进行容量补偿,以促进这些储能设施的可持续发展和并网。
最后,仅靠增加供应不太可能成为满足中国电力需求增长的最低成本方式。提高终端使用效率和“需求响应”也有助于降低供电的总体成本。
随着中国电力市场改革的不断深入,连接多个省份的区域市场设计,以及鼓励省份间资源共享的区域资源充裕性规划,也有助于以最具成本效益和最低碳的方式满足中国不断增长的用电量和高峰需求。
The post 嘉宾来稿:满足中国增长的用电需求 光伏加储能“比新建煤电更实惠” appeared first on Carbon Brief.
Climate Change
Indigenous groups warn Amazon oil expansion tests fossil fuel phase-out coalition
Indigenous leaders from across the Amazon have warned that stopping the expansion of oil drilling into their territories will be a crucial test for a growing international coalition committed to transitioning away from fossil fuels.
As 60 countries discussed at a landmark conference in Santa Marta, Colombia, pathways to end the world’s reliance on fossil fuels, Indigenous groups said the process risks losing credibility if governments continue opening new oil frontiers in the Amazon.
Their central demand was the establishment of fossil fuel “exclusion zones” across Indigenous territories and biodiverse areas of the rainforest, permanently barring new oil and gas expansion in one of the world’s most critical ecosystems. Indigenous representatives proposed establishing protected “Life Zones”, which they said would provide legal safeguards against governments and companies seeking to expand extraction into their lands.
But Indigenous delegates left the conference frustrated as the final synthesis report drafted by co-chairs Colombia and the Netherlands failed to include the proposal.
In a statement at the end of the conference, Patricia Suárez, from the Organization of Indigenous Peoples of the Colombian Amazon (OPIAC), said formally declaring Indigenous territories – especially those inhabited by peoples in voluntary isolation – as exclusion zones for extractive industries was “an urgent measure”.
“If the heart of the conference does not begin there, it risks remaining a set of good intentions that fails to respond to either science or our Indigenous knowledge systems,” she added.
Pushing for a new oil frontier
Campaigners say the pressure on the Amazon is intensifying just as scientists warn the rainforest is nearing irreversible collapse. Around 20% of all newly identified global oil reserves between 2022 and 2024 were discovered in the Amazon basin, fuelling renewed interest from governments and companies seeking to develop the region as the world’s next major oil frontier.
Ecuador has moved ahead with the auction of new oil blocks in the rainforest, while the country’s right-wing president Daniel Noboa has promoted the region as a “new oil-producing horizon” and backed efforts to expand fracking with support from Chinese companies.
In Santa Marta, a coalition of seven Indigenous nations from Ecuador issued a declaration condemning the government, which did not participate in the conference.
“While the world talks about energy transition, our government is pushing for more oil in the Amazon,” said Marcelo Mayancha, president of the Shiwiar nation. “Throughout history, we have always defended our land. That is our home. We will forever defend our territory.”
Indigenous groups also warned that Peru – another South American nation absent from the conference – plans to auction new oil blocks in the Yavarí-Tapiche Territorial Corridor, a highly sensitive region along the Brazilian border that contains the world’s largest known concentration of Indigenous peoples living in voluntary isolation.
COP30 host under scrutiny
Indigenous leaders also criticised Brazil, arguing that despite its international climate leadership, the country is simultaneously advancing major new oil projects in the Amazon region.
Luene Karipuna, delegate from Brazil’s coalition of Amazon peoples (COIAB), said the oil push threatens the stability of the rainforest. Not far from her home, in the northern state of Amapá, state-run oil giant Petrobras is currently exploring for new offshore oil reserves off the mouth of the Amazon river.
Brazil participated in the Santa Marta conference and was among the countries that first pushed for discussions on transitioning away from fossil fuels at COP negotiations. Yet the country is also planning one of the largest expansions in oil production in the world, according to last year’s Production Gap report.
Veteran Brazilian climate scientist Carlos Nobre told Climate Home that the country’s participation at the Santa Marta conference contrasted with its oil and gas production targets. “It does not make any sense for Brazil to continue with any new oil exploration,” he said, and noted that science is clear that no new fossil fuels should be developed to avoid crossing dangerous climate tipping points.
He added that the Brazilian government faces pressures from economic sectors, since Petrobras is one of the countries top exporting companies. “They look only at the economic value of exporting fossil fuels. Brazil has to change.”
The COP30 host also promised to draft a voluntary proposal for a global roadmap away from fossil fuels, which is expected to be published before this year’s COP31 summit.
“In Brazil, that advance has caused so many problems because it overlaps with Indigenous territories. Companies tell us there won’t be an impact, but we see an impact,” Karipuna said. “We feel the Brazilian government has auctioned our land without dialogue.”
For Karipuna and other Indigenous leaders, establishing exclusion zones across the Amazon is no longer just a regional demand, but a prerequisite to prevent the collapse of the rainforest.
“That’s the first step for an energy transition that places Indigenous peoples at the centre,” she added.
The post Indigenous groups warn Amazon oil expansion tests fossil fuel phase-out coalition appeared first on Climate Home News.
https://www.climatechangenews.com/2026/05/08/indigenous-amazon-oil-expansion-fossil-fuel-phase-out-coalition-santa-marta/
Climate Change
Kenya seeks regional coordination to build African mineral value chains
African leaders have intensified calls for governments to stop exporting raw minerals and step up efforts to align their policies, share infrastructure and coordinate investment to add value to their resources and bring economic prosperity to the continent.
In a speech to the inaugural Kenya Mining Investment Conference & Expo in Nairobi this week, Kenyan President William Ruto became the latest African leader to confirm the country will end exports of raw mineral ore. The East African nation has deposits of gold, iron ore and copper and recently launched a tender for global investors to develop a deposit of rare earths, which are used in EV motors and wind turbines, valued at $62 billion.
Kenya is among more than a dozen African nations that have either banned or imposed export curbs on their mineral resources as they seek to process minerals domestically to boost revenues, create jobs and capture a slice of the industries that are producing high-value clean tech for the energy transition.
“For too long we have extracted and exported raw materials at the bottom of the value chain, while others have processed, refined, manufactured and captured the greater share of economic value,” Ruto told African ministers and stakeholders gathered at the mining investment conference in Nairobi.
As a result, Africa currently captures less than 1% of the value generated from global clean energy technologies, he said. To address this, Kenya, in collaboration with other African nations, “will process our minerals here in the continent, we will refine them here and we will manufacture them here”, he added.
Mineral export restrictions on the rise
Africa is a major supplier of minerals needed for the global energy transition. The continent holds an estimated 30% of the world’s critical mineral reserves, including lithium, cobalt and copper. The Democratic Republic of Congo produces roughly 70% of global cobalt, a key ingredient in lithium-ion batteries, while countries such as Guinea dominate bauxite production, and Mozambique and Tanzania hold significant graphite deposits.
But African governments have struggled to attract the investment needed to turn their vast mineral wealth into a green industrial powerhouse. Recently Burundi, Malawi, Nigeria and Zimbabwe are among those that have resorted to banning the export of unrefined minerals to incentivise foreign companies to invest in value addition locally.
Outdated geological data limits Africa’s push to benefit from its mineral wealth
This week, Zimbabwe exported its first shipments of lithium sulphate, an intermediate form of processed lithium that can be further refined into battery-grade material, from a mine and processing plant operated by Chinese company Zhejiang Huayou Cobalt.
After freezing all exports of lithium concentrate – the first stage of processing – earlier this year, the government introduced export quotas and will ban all exports from January 2027.
Export restrictions on critical raw materials have grown more than five-fold since 2009, found a report by the Organisation for Economic Co-operation and Development (OECD) published this week. In 2024, a more diverse group of countries, including many resource-rich developing economies in Africa and Asia, introduced restrictions, including Sierra Leone, Nigeria and Angola.

This is “a structural shift in the wrong direction,” Mathias Cormann, the OECD’s secretary-general, told the organisations’ Critical Minerals Forum in Istanbul, Turkey, this week.
“We understand the motivations: building local industries, managing environmental impacts, capturing greater value domestically. But our research is quite clear. Export restrictions distort investment, reduce volumes and undermine supply security often while delivering limited gains in value added,” he said.
In-country barriers to success
Thomas Scurfield, Africa senior economic analyst at the Natural Resource Governance Institute, told Climate Home News that export restrictions “can look like a promising route to local value addition” for cash-strapped African mineral producers but have “rarely worked” unless countries already have reliable energy, infrastructure and competitive costs for processing.
“Without those conditions, bans may simply push companies to scale back mining rather than scale up processing,” he said.
Alaka Lugonzo, partnerships lead for Africa at Global Witness, identified gaps in practical skills and infrastructure as other major barriers. “You need engineers, geologists, marketers,” Lugonzo said, warning that graduates are increasingly unable to match the pace of industry change.
On infrastructure, she said that plentiful and stable energy supplies are vital and while Kenya has relatively robust road networks, they are insufficient for industrial-scale operations.
“Meaningful value addition and real industrialisation requires heavy machinery… and you will need better infrastructure,” she said, highlighting persistent last-mile challenges in mining regions where “there’s no railway, there’s no electricity, there’s no water”.
Export capacity is another concern, she said, particularly whether existing port systems could handle increased volumes of processed minerals.
Regional approach recommended
Scurfield said that through regional cooperation – including pooling supplies, specialising across different stages of refining and manufacturing, and building larger regional markets – “African countries could overcome many domestic constraints that make going alone difficult”.
That’s what close to 20 African governments are working to deliver as part of the Africa Minerals Strategy Group, which was set up by African ministers and is dedicated to foster cooperation among African nations to build mineral value chains and better benefit from the energy transition.
Africa urged to unite on minerals as US strikes bilateral deals
Nigerian Minister of Solid Minerals Dele Alake, who chairs the group, said “true collaboration” between countries, including aligning mining policies, sharing infrastructure, coordinating investment strategies and promoting trade across the continent, will create the conditions for long-term investments that could turn Africa into “a formidable and competitive force within the global mineral supply chain”.
“The time has come for Africa to redefine its place within the global mineral economy and that transformation must begin with regional integration and regional cooperation,” he told the mining investment conference in Nairobi.
Lugonzo of Global Witness agreed, saying that value-addition would benefit from adopting a continental perspective. “Why should Kenya build another smelter when we can export our gold to Tanzania for smelting, and then we use the pipeline through Uganda to take it to the port and we export it?” she asked.
To facilitate that, there is a need to operationalise the Africa Free Trade Continental Agreement (AFTCA), she added. “That agreement is the only way Africa is going to move from point A to point B.”
The post Kenya seeks regional coordination to build African mineral value chains appeared first on Climate Home News.
https://www.climatechangenews.com/2026/04/30/kenya-seeks-regional-coordination-to-build-african-mineral-value-chains/
Climate Change
Key green shipping talks to be held in late 2026
The future of the global shipping industry – and its 3% share of global emissions – will be decided in three weeks of talks in the third quarter of this year, after a decision taken in London on Friday.
At the International Maritime Organisation (IMO) headquarters this week, governments largely failed to substantively negotiate a controversial set of measures to penalise polluting ships and reward vessels running on clean fuels known as the Net-Zero Framework. The green shipping plan has been aggressively opposed by fossil fuel-producing nations, in particular by the US and Saudi Arabia.
This week, countries delivered statements outlining their views on the measures in a session that ran from Wednesday into Thursday. Then, late on Friday afternoon, they discussed when to negotiate these measures and what proposals they should discuss.
After a lengthy debate, which the talks’ chair Harry Conway joked was confusing, governments agreed to hold a week of behind-closed-door talks from 1 September to 4 September and from 23 November to 27 November.
Following these meetings, which are intended to negotiate disagreements on the NZF and rival watered-down measures proposed by the US and its allies, there will be public talks from November 30 to December 4.
Last October, talks intended to adopt the NZF provisionally agreed in April 2025 were derailed by the US and Saudi Arabia, who successfully persuaded a majority of countries to vote to postpone the talks by a year.
Those talks, known as an extraordinary session, are now scheduled to resume on Friday December 4 unless governments decide otherwise in the preceding weeks. While this Friday session will be in the same building with the same participants as the rest of the week’s talks, calling it the extraordinary session is significant as it means the NZF can be voted on.
Em Fenton, senior director of climate diplomacy at Opportunity Green said that the NZF “has survived but survival is not a victory” and called for it to be adopted later this year “in a way that maintains urgency and ambition, and delivers justice and equity for countries on the frontlines of climate impacts”.
NZF’s supporters
The NZF would penalise the owners of particularly polluting ships and use the revenues to fund cleaner fuels, support affected workers and help developing countries manage the transition.
Many governments – particularly in Europe, the Pacific and some Latin American and African nations – spoke in favour of it this week.
South Africa said the fund it would create is “the key enabler of a just transition” and its removal would take away predictable revenues from African countries. Vanuatu said that “we are not here to sink the ship but to man it”.
Australia’s representative called it a “carefully balanced compromise”, as it was provisionally agreed by a large majority after years of negotiations, and warned that failing to adopt it would harm the shipping industry by failing to provide certainty.
Santa Marta summit kick-starts work on key steps for fossil fuel transition
Canada’s negotiator said that if it was weakened to appease its critics like the US and Saudi Arabia, this would disappoint those who think it is too weak already like the Pacific islands.
A large group of mainly big developing countries like Nigeria and Indonesia did not rule out supporting the framework but called for adjustments to help developing countries deal with the changes. Nigeria called for developing countries to be given more time to implement the measures, a minimum share of the fund’s revenues and discounts for ships bringing them food and energy.
According to analysis from the University of College London’s Energy Institute, the countries speaking in support of the NZF include five countries which voted with the US to postpone talks in October and a further ten countries which did not take a clear position at that time. Most governments support the NZF as the basis for further talks, the institute said.
Opposition remains
But a small group of mainly oil-producing nations said they are opposed to any financial penalties for particularly polluting ships.
They support a proposal submitted by Liberia, Argentina and Panama which has proposed weakening emission targets and ditching any funding mechanism for the framework involving “direct revenue collection and disbursement”.
Argentina argued that the NZF would harm countries which are far from their export markets and said concerns over that cannot be solved “by magic with guidelines”. They added that, as a result, the NZF itself needs to be fundamentally re-negotiated.
The UCL Energy Institute said that just 24 countries – less than a quarter of those who spoke – said they supported Argentina’s proposal.
While this week’s talks did not see the kind of US threats reported in October, their delegation did leave personalised flyers on every delegate’s desk which were described by academics, negotiators and climate campaigners as misleading.
One witness told Climate Home News that junior US delegates arrived early on Wednesday and placed flyers behind governments’ name plates warning each country of the costs they would incur if the NZF is adopted.
The figures on a selection of leaflets seen by Climate Home News ranged from $100 million for Panama to $3.5 billion for the Netherlands. “They are trying to scare countries away from supporting climate action with one-sided information”, one negotiator told Climate Home News.

They added that the calculations, by the US State Department’s Office of the Chief Economist, ignore the fact that the money raised would be shared to help poorer countries’ transition as well as ignoring the economic costs of failing to address climate change.
Tristan Smith, an academic representing the Institute of Marine Engineering, Science and Technology, told the meeting that the calculations were “opaque” and flawed as they overstate the contribution of fuel cost to trade costs.
A US State Department Spokesperson said in a statement that they “firmly stand behind our estimates” which were shared “in good faith” and to “provide an additional tool to policymakers as they contemplate the true economic burden over the NZF”.
The post Key green shipping talks to be held in late 2026 appeared first on Climate Home News.
https://www.climatechangenews.com/2026/05/01/key-green-shipping-talks-to-be-held-in-late-2026/
-
Greenhouse Gases9 months ago
Guest post: Why China is still building new coal – and when it might stop
-
Climate Change9 months ago
Guest post: Why China is still building new coal – and when it might stop
-
Greenhouse Gases2 years ago嘉宾来稿:满足中国增长的用电需求 光伏加储能“比新建煤电更实惠”
-
Climate Change2 years ago
Bill Discounting Climate Change in Florida’s Energy Policy Awaits DeSantis’ Approval
-
Renewable Energy7 months agoSending Progressive Philanthropist George Soros to Prison?
-
Carbon Footprint2 years agoUS SEC’s Climate Disclosure Rules Spur Renewed Interest in Carbon Credits
-
Greenhouse Gases10 months ago
嘉宾来稿:探究火山喷发如何影响气候预测
-
Renewable Energy10 months ago
US Grid Strain, Possible Allete Sale













