China’s energy storage sector is rapidly expanding. As a solution to balancing the country’s growing energy needs and mass renewable energy production, the industry has attracted investments worth hundreds of billions of yuan (tens of billions of dollars).
This has seen China become the world’s largest market for energy storage deployment. Its capacity of “new type” energy storage systems, such as batteries, quadrupled in 2023 alone.
This rapid growth, however, has caused other problems, such as what one analyst described as “temporary structural overcapacity” and low utilisation.
In this Q&A, Carbon Brief explores how China has been driving the sector forwards and how it fits into the nation’s wider energy transition.
Soaring battery deployment
China is currently the world’s largest market for energy storage, followed by the US and Europe, according to BloombergNEF.
This position was driven by a combination of market need for balancing renewable energy and government efforts to build a “new power system”.
China installed a massive 301 gigawatts (GW) of renewable capacity including solar, wind and hydro in 2023 alone – more than the total renewable generating capacity installed in most countries over all time.
As of May 2024, “clean energy” generated a record-high 44% of China’s electricity, according to Carbon Brief analysis.
However, despite the renewable energy boom, China’s power system still struggles to absorb all of the generation, making energy storage – which bridges temporal and geographical gaps between energy supply and demand – a key tool for the country to improve its renewable energy integration.
The majority of China’s storage capacity comes from large-scale storage projects, such as hydropower with reservoirs on the Yangtze River and gigawatt-level battery energy storage systems in Inner Mongolia.
Pumped hydro storage is the most common utility-scale storage system and has a long history in China. It pumps water uphill to a reservoir and then releases it to generate electricity. As of 2023, pumped hydro storage surpassed 50GW, making up over half of the country’s overall storage capacity.
The remaining half is comprised primarily of batteries and emerging technologies, such as compressed air, flywheel, as well as thermal energy.
These technologies, known as the “new type” energy storage in China, have seen rapid growth in recent years. Lithium-ion batteries dominate the “new type” sector.
The deployment of “new type” energy storage capacity almost quadrupled in 2023 in China, increasing to 31.4GW, up from just 8.7GW in 2022, according to data from the National Energy Administration (NEA).
This means that China surpassed its target of reaching 30GW of the “new type” energy storage by 2025 two years earlier than planned. The goal had been set by the NEA and China’s top economic planner the National Development and Reform Commission, under the 14th “five year plan”.
(Read Carbon Brief’s Q&A: What does China’s 14th ‘five year plan’ mean for climate change?)
Wang Shurui, researcher at the Institutes of Science and Development, Chinese Academy of Sciences, tells Carbon Brief:
“Advancements in the storage sector will enable a greater integration of renewable energy into the power grid, enhancing grid stability and helping accelerate China’s emissions reduction.”
High deployment, low usage
To promote battery storage, China has implemented a number of policies, most notably the gradual rollout since 2017 of the “mandatory allocation of energy storage” policy (强制配储政策), which is also known as the “new energy plus storage” model (新能源+储能).
Under the mandate, which applies in dozens of provinces, renewable companies are required to include a certain amount of energy storage capacity alongside new solar and wind generation projects, with the storage allocation rate ranging between 5% to 20%.
“This mandate is driving storage growth, as it pushes the build-out of large-scale energy storage stations,” says Guo Shiyu, climate and energy campaigner from Beijing-based thinktank Greenpeace East Asia. She tells Carbon Brief:
“The stations may not look huge separately, but they are mostly built on the generation side [alongside generating capacity], which are still quite big compared to industrial and commercial self-built storage [on the demand side].”
Cheaper costs led by technology innovation have helped the market’s increasing adoption of batteries too, Sun Yongping, researcher of emissions trading and vice-dean of the Institute of State Governance at Huazhong University of Science and Technology, tells Carbon Brief.
“An interviewee told me in a recent field study that the cost had fallen by over a half these years,” says Sun. “Local development is so fast that too often you can’t grasp it [in a] timely [way] just by looking at the statistical numbers,” he adds.
Despite its positive intentions, the mandatory storage policy has had unintended consequences. Notably, a significant portion of the installed storage capacity remains underutilised.
In regions covered by the State Grid – the government-owned operator that runs the majority of the country’s electricity transmission network – over four-fifths of the storage systems operate less than 10% of the time, with many used only once every two days, according to a Bloomberg report.
Another challenge, according to Guo, is the additional project costs and lack of effective incentives, as many storage facilities were built or rented to fulfil government requirements but went unused afterwards.
Both Guo and Sun argue that China needs a deeper level of electricity market pricing reforms to create incentives to use storage.
For example, having electricity prices that change at different hours could encourage the adoption of storage technologies in China, suggests Sun.
Guo says: “We still hope that each place deploys new energy storage according to its needs and understands its own situation instead of adopting a ‘one-size-fits-all’ approach.”
‘New driving force’ for economy
In 2024, the NEA named the energy storage sector as a “new driving force” for the country’s “new quality productive forces ” (NQPF). It could “propel the upstream and downstream industrial chains, promote scientific and technological innovation, talent training, investment and employment”, said the NEA.
(Read more on Carbon Brief’s Q&A: What China’s push for ‘new quality productive forces’ means for climate action.)
Regional governments are also exploiting the economic opportunity in energy storage. Guangdong, for example, aimed to make energy storage a “strategic pillar industry” of its economy by setting a target of 600bn yuan ($85bn) in annual revenue from the energy storage industry by 2025, eyeing the domestic and overseas market as the global energy transition deepens.
Meanwhile, Zhejiang, Anhui and Guangdong also have ambitious targets of installing local storage capacity of 3GW each by 2025, according to a recent tally by Greenpeace East Asia, based on government documents.
The booming market has attracted more than 100bn yuan ($14bn) since 2021.
But risks of market turmoil also exist. According to battery industrial information provider Gaogong Industrial Institute, last year China saw over 70,000 newly registered companies in the sector, which indicated that the market – already seeing fierce competition – may now be undergoing an “overcapacity” period.
Guo says this period of “overcapacity”, however, is rather “temporary”. She adds:
“There exists a temporary structural overcapacity, as the current expansion of new type energy storage is outpacing the market needs.
“However, if the regional governments could provide more policy support for the application of storage projects, this ‘excess capacity’ due to insufficient market demand could be avoided.”
The post Q&A: How China became the world’s leading market for energy storage appeared first on Carbon Brief.
Q&A: How China became the world’s leading market for energy storage
Climate Change
Africa should not have to adapt to an unjust climate system
Mohamed Adow is the founder and director of Power Shift Africa.
What does it mean to ask a continent to adapt to a crisis it did little to create? For Africa, that question has stopped being philosophical as it is answered every day in flooded communities, failed harvests, disappearing livelihoods and public budgets stretched by disasters they cannot afford.
Africa produces a negligible share of global emissions, but between 1970 and 2021 it accounted for around 35% of climate-related deaths worldwide. The continent is therefore confronting a brutal contradiction that is exemplified by the fact that those who have contributed least to the climate crisis are carrying some of its heaviest costs.
And that explains why, for us, it is worrying that much of the climate debate treats adaptation as a technical exercise. Build better infrastructure, they say. Improve early-warning systems, they urge. Develop drought-resistant crops, they preach. Strengthen disaster preparedness, they yell. All of these things matter, but they do not answer the harder question of why some people and countries are so much more vulnerable in the first place.
At pre-COP, UN climate chief warns of heat threat to mothers and babies
That is the question we have spent the last couple of years trying to answer, and it culminates in our recently launched thought-provoking report that shows how Africa’s vulnerability is not an accident of geography, but has instead been shaped by history, economics and power.
Colonial extraction, unequal development, debt dependency, global economic asymmetries and exclusion from international decision-making have all constrained the resources and choices available to African countries, and climate change is intensifying those existing inequalities, shows the report, titled “A Just Transition for Adaptation: A Framework and Vision for Africa”.
Widening adaptation finance gap
I say it is ‘thought-provoking’ because it asks us to rethink adaptation itself – not as a collection of projects designed to help people cope with climate impacts, but as a question of justice, power and structural change.
That distinction might not sit well with some people, but for Africa it matters, because there is a danger in asking vulnerable countries simply to become more “resilient”. Resilient against what? How can you ask people to toughen up while letting them be strangled by a system that continues to reproduce the very inequalities that have made resilience so difficult?
If you want to know where the problem is, see where the money is coming from and where it is going. That becomes quite stark when you consider the fact that Africa’s annual adaptation needs are close to $70 billion but its adaptation finance flows are only around $14 billion.
Editor’s Desk: Nepal’s disaster has laid bare the world’s adaptation accountability gap
At the same time, a growing proportion of climate finance is being delivered through commercial loans rather than grants. That means countries already under severe fiscal pressure are being asked to borrow to protect themselves from climate impacts they did little to cause.
There is something deeply wrong with a system in which climate-vulnerable countries are spending more of their own public money on adaptation than they receive in international support, because that system turns climate injustice into a financial transaction, with those least responsible carrying more of the cost.
From extractivism to African ownership
And, as the new report shows, the problem goes beyond finance. Africa’s land, minerals, forests and other resources have become central to the global transition towards lower-carbon economies. Markets and green industrial projects may offer genuine opportunities, but without African ownership, participation and accountability, there is a risk that old patterns of extraction will simply be repackaged in the language of the green economy, and that is why we argue that a transition can be low-carbon and still be unjust.
It is precisely because of this risk that the report’s idea of a just transition for adaptation becomes important as it expands the idea beyond the familiar focus on emissions and energy systems. It asks what justice looks like when the goal is not simply to reduce carbon, but to enable societies to withstand a changing climate without reproducing the inequalities that made them vulnerable.
The report places four dimensions of justice at the centre: recognition, participation, distribution and restoration.
From Belém to Antalya – gains, gaps and challenges for a new Just Transition Mechanism
Recognition means taking African realities and knowledge seriously. Indigenous and local knowledge has too often been treated as peripheral to “real” climate expertise, even though communities possess generations of detailed understanding of ecosystems, rainfall, soils, water and livelihoods. That knowledge should inform adaptation policy from the beginning, rather than being added after decisions have already been made.
Participation means giving affected communities a genuine voice in decisions about their land, resources and futures. Adaptation governance should be inclusive, democratic, rights-based and rooted in free, prior and informed consent.
Climate justice must confront unequal development
Meanwhile, distribution asks who actually receives adaptation finance, technology and protection? Money that is announced internationally but fails to reach vulnerable communities does little to change their reality.
And, finally, restoration recognises that present-day vulnerability has a history. Climate justice cannot begin and end with today’s emissions, but must also confront the structural conditions that have shaped unequal development and continue to limit African countries’ room to respond.
This report, therefore, is an invitation to change the terms of the conversation on just transition. Africa definitely needs adaptation, but that should not mean endlessly adjusting to an unjust system. The real goal should be something more ambitious; a transition in which resilience, development and justice reinforce one another, shaped by African priorities and grounded in African realities.
The post Africa should not have to adapt to an unjust climate system appeared first on Climate Home News.
Climate Change
At pre-COP, UN climate chief warns of heat threat to mothers and babies
Extreme heat poses a growing threat to pregnant women and their babies, both before and after birth, the UN climate chief said on Monday, calling it “a new faultline in the global climate crisis, and one which is potentially fatal”.
Speaking on the first day of the pre-COP31 meeting in Fiji, where new research was launched on the issue, Simon Stiell warned: “This faultline must not become another deep chasm of climate-driven suffering, inequality and injustice.”
Rather than being a time of hope, he added, pregnancy is becoming “a time of anxiety, as climate impacts fill everyday life with risk”, straining health systems and threatening essentials like food, water and power – especially in poorer countries where many women work outdoors and live in informal housing far from under-equipped clinics.
In a new international survey of 1,000 maternal healthcare professionals in Australia, Brazil, India, the UK and Zimbabwe, around three-quarters reported an increase in heat-related cases or complications affecting pregnant women, as well as foetal and newborn health, over the past five years.
Nearly all respondents in the survey commissioned by Wellcome, a global charitable foundation, said they had cared for a pregnant woman or baby whose health they believed had been affected by extreme temperatures.
Researchers have linked heat exposure with preterm birth, low birth weight, stillbirth and maternal complications. For every 1 degree Celsius rise in heat exposure, the odds of preterm birth increase by around 5%, while exposure to heatwaves is associated with a 25% higher risk of obstetric complications.
“No woman should have to fear that extreme heat will harm the baby she is carrying,” said Julia Gillard, chair of Wellcome and former Australian prime minister, adding “pregnant women must not be invisible”.
Call to include mothers and midwives
Wellcome urged governments to include pregnant women, new mothers and babies in their national climate and health plans, with funded measures to protect them from extreme heat.
It also called on the World Health Organization to develop clinical guidance on heat, pregnancy and the postpartum period, alongside stronger data and surveillance on how heat exposure impacts maternal and newborn health.
The charity is backing a study in Zimbabwe and South Africa to test simple interventions such as handheld fans, reflective paint on health-facility roofs and community-led climate information systems.
Extreme heat costing India’s poorest workers 2% of GDP, survey finds
The International Confederation of Midwives, which represents over 2 million midwives, is also pushing for action, asking countries to include maternal healthcare professionals in their National Adaptation Plans, and provide finance to ensure clinics have access to reliable water, power and cooling.
Chief executive Anna af Ugglas told an event on adaptation at Climate Week NYC that midwives tire more easily when working in high heat, which can lead them to make errors. They are often first responders in a crisis – and yet “too many climate and emergency plans are still developed without them”, she added.
Pacific hosts Pre-COP
The campaign to put maternal health on the climate policy agenda kicked off the proceedings in Fiji, where ministers and other attendees from around 50 countries are gathering this week to advance discussions in the run-up to the COP31 climate summit in Antalya next month.
This year’s annual UN climate conference is taking place in Türkiye which holds the COP presidency, while Australia is in charge of the negotiations – a deal worked out after a long rivalry to host COP31.
Australia is using its role to spotlight the concerns of the Pacific region to which it belongs, where low-lying island nations are under threat from sea level rise.
On Tuesday, a group of 14 government leaders – mainly from the Pacific – plus heads of international organisations including the Green Climate Fund and the Asian Development Bank will visit climate resilience projects in neighbouring Tuvalu.


Key themes for the pre-COP – a glitzier event than usual – are keeping the 1.5C global warming limit within reach despite a projected overshoot, protecting oceans and improving access to finance for small island nations and the least-developed countries.
At a press conference on Monday, Australia’s climate change and energy minister Chris Bowen flagged his country’s investments in renewables, both in Pacific nations such as Vanuatu and at home, saying this would help lower the use of diesel, fossil gas and coal in energy supplies.
Ahead of the pre-COP, Australia has been criticised by climate campaigners and some Pacific leaders for greenlighting expanded coal production on its territory.
As COP31 co-host, Australia should make its polluters pay for climate damage
Asked about Australia’s ongoing support for fossil fuels, Fiji’s climate minister Lynda Tabuya said the issue had been raised by “certain countries” at a ministerial meeting on Monday.
“There will be things that we disagree on, but we can agree to disagree – and we’re just very grateful for the support of Australia and the commitment towards renewable energy, and I think that’s the direction that we need to take, especially in the Pacific,” she added.
The post At pre-COP, UN climate chief warns of heat threat to mothers and babies appeared first on Climate Home News.
At pre-COP, UN climate chief warns of heat threat to mothers and babies
Climate Change
‘Don’t waste this moment’: Pre-COP must back Pacific priorities; respond to the urgency of the climate crisis
NADI, FIJI Sunday 4 October 2026 — As leaders and delegates gather for the Pacific Pre-COP in Fiji and Tuvalu, Greenpeace Australia Pacific is calling on the Australian government to uphold Pacific priorities on fossil fuels and climate finance, and respond to the urgency of the climate and energy crisis by accelerating the just transition away from fossil fuels.
The Pre-COP meeting in Fiji and atoll nation Tuvalu is an important milestone on the road to the COP31 climate summit in Türkiye, where Climate and Energy Minister Chris Bowen will take the reins as President of Negotiations. But another coal mine approval in the days before the Pre-COP has left Pacific leaders and civil society exasperated at Australia’s perceived ‘double talk’ and overshadowed the start of talks.
Speaking from Nadi, Shiva Gounden, Head of Pacific at Greenpeace Australia Pacific, said:
“This week we must focus on why the Pre-COP is so important. We must listen to Pacific leaders and communities who are sick of Australia’s double talk on climate, and want to see the actions of the most polluting nations respond to the urgency and scale of the crisis we face.
“Every cyclone, every storm blows with the deadly force of accumulated emissions and gives a warning of what is to come. The Pacific must not become a sacrifice zone for major polluters and fossil fuel corporations.
“1.5°C remains the scientific, moral and legal temperature limit. The landmark Pacific-led ICJAO ruling is clear — continuing down the fossil fuel path, and failing to align efforts with limiting warming to 1.5°C, is a breach of our international legal obligations. Our communities, our cultures and our very existence are under threat.
“As Australia prepares to chair the upcoming COP31 talks in partnership with the Pacific, it must do much more to turn empty rhetoric into real action to end the fossil fuel chokehold.”
Also in Nadi, Dr Simon Bradshaw, COP31 Lead and climate expert at Greenpeace Australia Pacific, said: “The Pacific Pre-COP is a critical milestone on the road to COP31. The Australian government must rise to the moment with concrete plans to accelerate the global transition away from fossil fuels, and respond to communities across the region facing soaring cost of living and the escalating impacts of the climate crisis.
“This week, the Australian government must deliver more than empty rhetoric. The Prime Minister’s recent keynote address at New York Climate Week acknowledged the urgency of the climate crisis, but failed to mention its cause, fossil fuels. Just last week we saw another new coal mine approval in Australia. This is on top of the 37 fossil fuel approvals by the Albanese Government since elected, despite recognising through the Belém Declaration that returning to 1.5°C is incompatible with new coal, oil and gas.
“At the Pre-COP, words must be matched with real action to phase out fossil fuels. We can not help decarbonise the world without action at home to halt fossil fuel approvals and phase out coal and gas exports. Don’t waste this important moment to back Pacific leadership and turn commitments into real action, including an immediate end to new fossil fuel approvals, and following other nations in developing a national roadmap away from fossil fuels.”
ENDS
Media contact: Kate O’Callaghan in Nadi on +61 406 231 892 (Whatsapp/Signal)
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