In 2023, wind and solar combined added more new energy to the global mix than any other source, for the first time in history, according to Carbon Brief analysis of newly released data.
Nevertheless, record global demand for energy saw coal and oil use also reaching new highs last year, the Energy Institute Statistical Review of World Energy 2024 finds.
This pushed global carbon dioxide (CO2) emissions to another record in 2023, the world’s first full year with no impact from the coronavirus pandemic, the data shows.
Key figures from the report include:
- Global energy demand reached a record high of 620 exajoules (EJ) in 2023, with annual growth of 2.0%, slightly above the 1.5% per year average for the last decade.
- Wind and solar together were the largest source of new energy in 2023, adding 4.9EJ or 40% of the increase overall. The rest of the net increase came from oil (+4.8EJ, 39% of the increase), coal (+2.5EJ, 20%), nuclear (+0.4EJ, 4%) and other non-hydro renewables (+0.5EJ, 4%), while gas stayed flat and hydro declined (-0.9EJ, -8%).
- Global energy use from coal grew 1.6% year-on-year to a record high of 164EJ, passing the previous record of 162EJ, set a decade earlier in 2014.
- Global energy use from oil grew 2.5% to a record high of 196EJ, comfortably above the previous high of 193EJ set in 2019, before the coronavirus pandemic.
- Global energy use from gas was unchanged at 144EJ. It has now flatlined for two years since the global energy crisis, due to Russia cutting off gas supplies to Europe.
- Global electricity generation from coal grew by 189 terawatt hours (TWh, 1.8%) year-on-year to a record high of 10,513TWh. This was despite wind and solar adding a record 537TWh of new generation, up a combined 15.7% year-on-year to 3,967TWh.
- The new highs for coal and oil use drove global emissions to another record, with releases from fossil fuel burning, industrial processes, methane and flaring topping 40bn tonnes of carbon dioxide equivalent (GtCO2e) for the first time.
With global temperatures inching closer to the 1.5C limit, time is running out to peak and then decline emissions in order to avoid dangerous levels of warming. The new figures show the world is still going in the wrong direction, with new records for coal, oil and CO2 emissions.
Yet there are hints that, beyond today’s data for 2023, the world could be turning a corner, as emissions from China – and the global electricity system – may already have peaked.
This is the second edition of the statistical review published by the Energy Institute. Carbon Brief covered earlier editions, published by oil major BP, in 2015, 2016, 2017, 2018, 2019 and 2020.
Wind and solar make history
One of the most striking details in this year’s report is that wind and solar, when combined, added more new energy to the global mix in 2023 than any other source, as shown in the figure below.
The combined 4.9EJ of new energy from wind and solar in 2023 accounted for 40% of the overall increase in global demand, ahead of oil (39%) and coal (20%).
This is the first time in history that these newer forms of renewable energy have outpaced each of the fossil fuels, which remain the world’s dominant sources of energy.

Still, the significant increases in demand for energy from oil (+4.8EJ) and coal (+2.5EJ), shown in the figure above, resulted in yet another increase in global CO2 emissions.
The drop in hydro output – also shown above – resulted from major droughts around the world in 2023, particularly in China. This shortfall was largely met by increased coal power.
Along with the continued rapid expansion of wind and solar, a recovery in hydro generation from last year’s lows is expected to contribute to a peak in emissions from the global power sector.
While global demand for oil and gas is not expected to peak until later this decade, reductions in coal use could still drive a near-term peak in global CO2 emissions.
Record highs for coal and oil
The record 4.9EJ of new energy added by wind and solar in 2023 marks a continuation of their rapid growth over the past decade, shown in the figure below.
In combination, wind and solar now contribute 37EJ to the global energy system, up 15% year-on-year. Their combined output has grown at an average 17% per year for the past decade, taking them from a total of just 8EJ in 2013 to the 2023 figure of 37EJ.
As the figure below shows, wind and solar overtook nuclear power in 2021 and, in combination, they are likely to overtake hydropower this year.
Still, it is clear from the figure that the global energy system remains heavily reliant on fossil fuels.
At a new record of 196EJ in 2023, oil is the world’s largest source of energy, accounting for nearly a third of the total (32%) energy mix and having grown nearly every year for the past half-century.
Coal is in second place, at 164EJ in 2023 or 26% of the mix. While this, too, marks a new record, global coal demand has been flat for the past decade. Indeed, at one point it seemed that the previous 2014 record of 162EJ might have marked a lasting peak for the fuel.

Notably, the figure above shows that global gas demand has now flatlined for the past two years. While the future trajectory for the fuel remains uncertain, this recent trend illustrates why the International Energy Agency (IEA) said in late 2022 that the “golden age of gas” had been brought to an end by the global energy crisis, following Russia’s invasion of Ukraine earlier that year.
In total, fossil fuels met some 81.5% of global primary energy demand in 2023, as shown in the figure below. While this is a record low, it is only around 4 percentage points lower than a decade earlier – and 5 percentage points below the level seen in 1990.

Energy Institute chief executive Nick Wayth told a pre-release press briefing that the data could be interpreted to suggest that the global energy transition “has not even started”:
“At the global level, today’s new data provides little encouragement in terms of global climate change mitigation. Clean energy is still not even meeting the entirety of demand growth and therefore at a global level not displacing fossil fuels. Arguably, the transition has not even started.”
However, this interpretation hides a “lopsided” picture for different parts of the world, Wayth said. “Fossil demand is likely to be peaking” in the major economies of Europe and the US, he explained, even as countries in the Global South are “still carbonising”.
Electricity system in flux
To date, the energy transition has had the most dramatic impact on the global electricity system, as the figure below shows. Wind and solar generation has grown from a combined 774TWh in 2013 to nearly 4,000TWh in 2023 – more than quintupling in a decade.
Together, wind and solar accounted for 13% of global electricity supplies in 2023, up from 3% a decade earlier. Still, rapidly-rising demand for electricity, which is expected to accelerate as heat, transport and industry are increasingly electrified, means that coal power reached a record high of 10,513TWh in 2023.This cements its position as the single-largest contributor to the mix.

Low-carbon sources of clean energy, including nuclear and renewables, now make up a record high 39% of global electricity supplies, ahead of coal at 35%. With gas making up a further 23% of the mix, the majority of the world’s electricity is still being generated with fossil fuels.
The expansion of wind and solar is expected to continue and even accelerate – particularly if the global goal of tripling renewable capacity by 2030 is to be met.
Combined with a recovery in global hydropower output, following a series of major droughts, this could force fossil fuel power into the beginning of structural decline in 2024.
Record CO2 emissions
Taking all of the pieces together, the record for coal and oil use along with flat demand for gas means global CO2 emissions reached a new high in 2023, the Energy Institute’s data shows. This is despite the record amounts of new energy added by wind and solar power.
In total, global emissions from fossil fuels, industrial processes, methane and flaring breached 40GtCO2e for the first time in 2023, as shown in the figure below.
China’s emissions grew by 708m tonnes of CO2e (MtCO2e, 6%) year-on-year, accounting for 85% of the net increase globally (829MtCO2e). India’s emissions also grew strongly, up 257MtCO2e (9%), while emissions in the US and EU fell by 140MtCO2 (2.7%) and 188MtCO2e (6.6%) respectively.

The Energy Institute estimate confirms earlier analysis from the Global Carbon Project (GCP) and the IEA, both of which found fossil fuel CO2 emissions had reached a new record high in 2023.
However, GCP estimates including CO2 emissions from land use change put 2023 just below the record set in 2019, with the total having been roughly flat for a decade.
Looking ahead, the key question for global emissions is whether China has already peaked and, if so, how quickly its emissions begin to fall. If it has, then it would add to continued emissions reductions in developed countries and likely outweigh increases elsewhere.
The post Analysis: Wind and solar added more to global energy than any other source in 2023 appeared first on Carbon Brief.
Analysis: Wind and solar added more to global energy than any other source in 2023
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Q&A: Can China turn hydrogen into its next clean-energy industry?
China has said that hydrogen is a key “future industry”, important to both its energy transition and its industrial policy.
Hydrogen frequently goes through hype cycles, most recently driven by rising oil and gas prices due to the conflict in the Middle East.
Yet, even in China, the world’s largest producer and consumer of the fuel, hydrogen remains expensive and inefficient to produce.
This is especially the case for “green” hydrogen derived from renewables.
Moreover, there is limited supporting infrastructure and there is little incentive to use hydrogen over other energy sources.
As a result, uptake in China of hydrogen as an alternative fuel remains low.
Nevertheless, these challenges echo the early circumstances of another key clean-energy technology – electric vehicles (EVs).
In China, EVs benefited from a policy environment that included consistent signals of support, financial aid and the development of supporting infrastructure.
Many similar policies are now being deployed – and in some cases improved upon – to support the development of China’s hydrogen industry.
This article examines China’s approach to developing hydrogen and how its evolving industrial policy could make the fuel viable.
How is China using hydrogen and where does it come from?
Electrification and rising installations of solar and wind power have been the biggest drivers of China’s decarbonisation story so far. However, how China will address the more energy-intensive, hard-to-electrify segments of its economy remains an open question.
Hydrogen is seen by some in China as a potential solution for reducing emissions in a range of “hard-to-abate” industries, from steel and chemicals to aviation and shipping.
The country is the world’s foremost producer and consumer of hydrogen. It produced 36.5m tonnes of the gas in 2024, with maximum production capacity standing at 50m tonnes that year.
It also consumed nearly a third of the world’s hydrogen in 2024, as shown below.

Most of China’s production capacity is in regions with potential for high demand, such as Shandong, Inner Mongolia, Shaanxi, Ningxia, Shanxi and other provinces with significant heavy industry.
In 2024, the vast majority of China’s hydrogen – around 78% – was produced using fossil fuels, predominantly coal and gas, as shown in the figure below.
Another 21% was produced as an industrial by-product, while only 1% – just 320,000 tonnes – was derived from renewable-powered electrolysis of water.

One study found that, for every kilogram of hydrogen produced, 38.6kg of carbon dioxide (CO2) is emitted if the hydrogen is produced using coal-fired power. Hydrogen made through coal gasification results in 28.5kg of CO2 for every kilogram of hydrogen, while gas-based hydrogen creates 13kg of emissions.
By contrast, one kilogram of renewables-based hydrogen results in 0.5kg of CO2.
The International Energy Agency (IEA) calculates that hydrogen and hydrogen-based fuels could help China avoid close to 16bn tonnes of CO2 cumulatively by 2060 – but only if it comes from low-carbon sources.
The biggest reductions, it adds, would come from heavy industry, particularly chemicals and steel, with the maritime and shipping sectors also seeing some benefit.
Currently, around half of the hydrogen produced in China is used in synthetic ammonia and methanol production.
Ammonia is primarily used to manufacture fertiliser and is seen as a possible fuel technology for shipping. Methanol is used as a fuel for the transport industry, as well as for heating.
Another quarter of China’s current hydrogen usage is consumed by the oil refining and coal-to-chemical sectors. The remaining amount is used in other industries, including transport, heating and metallurgy.
What are the barriers to scaling up hydrogen?
Although China is the largest producer and consumer of hydrogen globally, the industry faces several barriers to becoming a viable clean-energy technology.
Agora Energiewende, a thinktank focused on the energy sector, says that, in order to make hydrogen a practical clean-energy solution, China would need to expand the scale and range of its application, as well as improving the conversion efficiency of production and use.
Both BloombergNEF and the IEA highlight the importance of China creating demand for hydrogen, such as through quotas for industrial usage.
Hydrogen “suffers from a relatively large efficiency loss during various conversion processes”, adds Agora. For example, it notes that only around 22% of the energy put into hydrogen fuel-cell electric vehicles (FCEVs) is converted into motion, compared to 73% for battery electric vehicles. Producing hydrogen with renewable energy is also less efficient than coal-to-hydrogen processes.
Cui Chuansheng, technical director at East China Engineering Science and Technology, tells state news agency Xinhua that the variability of wind and solar power often leads to low utilisation of electrolysers, resulting in “efficiency losses”.
Meanwhile, the cost of producing hydrogen – particularly green hydrogen – remains high.
One study placed the cost of hydrogen produced through alkaline water electrolysis (AWE), the most common method for producing green hydrogen in China, at $4-6 per kilogram, compared with $1.20-2.50/kg for steam methane reforming and $1.30-2 for coal gasification.
In some specific cases, such as blending hydrogen with gas, researchers find that hydrogen prices would need to fall to one-third of gas prices to incentivise uptake.
These constraints are all “interdependent”, Kevin Tu, managing director of Agora Energy China, tells Carbon Brief, with the need to ensure “bankable demand” while also reducing costs and developing infrastructure. He adds:
“Without credible offtake in the right sectors, costs will not fall; without lower costs and better logistics, downstream users will not commit.”
The IEA says that green hydrogen “could become cost-competitive by the end of this decade due to low technology costs and cost of capital”.
For now, however, the China Hydrogen Bulletin Substack reports that China’s four listed hydrogen equipment manufacturers all reported significant losses in 2025.
Meanwhile, a senior executive at a Chinese hydrogen company told economic news outlet Jiemian that he expected 40% of companies in the sector to have closed down by the end of 2026, with surviving companies only turning a profit in 2029 at the earliest.
The industry also lacks refueling and pipeline infrastructure. China’s development of a pipeline network for hydrogen remains in its early stages, with around 400km of pipelines currently in operation. By contrast, its long-distance gas network stands at 128,000km. Similarly, storage remains expensive and inefficient, creating a further obstacle to wider uptake.
How is China supporting hydrogen development?
China began considering the use of hydrogen as an energy source in earnest in the early 2000s, to address concerns around pollution and dependence on imported oil for the transport sector.
A clearer signal of its importance came in 2015, when the State Council included the technology in a 10-year national industrial strategy known as the “Made in China” initiative. This pitched hydrogen as a way to contribute to electrification of China’s road-transport system through the development of FCEVs.
Yuki Yu, founder of research firm Energy Iceberg, tells Carbon Brief that, from 2018-2021, hydrogen was treated as a “FCEV and manufacturing technology challenge”.
This has since evolved, she says, given that battery electric vehicles have emerged as the more popular technology.
Shen Xinyi, senior advisor at the Centre for Research on Energy and Clean Air (CREA), agrees, telling Carbon Brief that recent policy documents suggest the aim is now for hydrogen to be targeted at areas where direct electrification is harder, such as hydrogen-based chemicals, hydrogen metallurgy and some heavy-duty transport applications.
This is in line with the “hydrogen ladder”, an analysis of how likely different possibilities for applying hydrogen as a clean alternative are to become significant. The ladder sees significant future use of hydrogen in these hard-to-electrify areas as much more likely than for light vehicles.
Notable policy moves are being made in “three layers”, says Agora’s Tu, which are combining to improve the technology’s chances of scaling up. These are: the “legal and institutional” layer; “application-oriented” policies; and targeted measures to address “practical bottlenecks” at the local level.
One of the documents underpinning this pivot was the “medium- and long-term plan for the development of the hydrogen energy industry (2021-2035)”, issued in March 2022.
According to a report by the National Energy Administration (NEA), the plan is an attempt to develop an “industrial ecosystem” for hydrogen that features “diverse stakeholders, coordinated innovation and clustered development”.
The plan was the first government document to “lay out a long-term vision for China’s hydrogen economy”, unifying a previously disparate policy push into one document, according to the Oxford Institute for Energy Studies, a UK-based thinktank.
Following on from the 2022 plan, the importance of hydrogen as a broad clean-energy solution has been emphasised in a number of policies. These include its classification being changed from a hazardous chemical to an energy carrier in China’s Energy Law, a 2024 action plan to “accelerate” the use of low-carbon hydrogen in industry and a new pilot scheme offering subsidies for projects that achieve specific targets.
The table below sets out the timeline and content of China’s hydrogen-related policies over the past 25 years.
| Policy | Year published | Key features |
|---|---|---|
| 10th five-year plan (2001–2005) | 2001 | Calls for “actively developing” low-emission vehicles, understood to include hydrogen vehicles |
| Made in China 2025 | 2015 | Pledges to “continue to support” development of fuel cell vehicles and “master core technologies” for low-carbon vehicles |
| Notice on implementation of demonstration projects for fuel cell vehicles | 2020 | Creates a dedicated subsidy programme for finding breakthroughs in FCEV core technologies and industrial applications |
| 14th five-year plan (2021-2025) | 2021 | Hydrogen listed as a future industry |
| Medium- and long-term plan for the development of the hydrogen energy industry (2021–2035) | 2022 | Aims to reach 100,000-200,000 tonnes of green hydrogen production [this target has been met]. Also aims to get 50,000 FCEVs on the road by 2025, leading to a “diversified” hydrogen industry by 2035 |
| Opinions on accelerating the comprehensive green transformation of economic and social development | 2024 | Promotes further development of hydrogen production, transport, storage and applications |
| Implementation plan for accelerating the application of clean and low-carbon hydrogen in the industrial sector | 2025 | Outlines tasks to promote use of low-carbon hydrogen to reduce emissions in heavy industries, such as steel and chemicals |
| Energy law | 2025 | Sees hydrogen included in national legislation for the first time, re-classifies it from a hazardous chemical to an energy carrier |
| 15th five-year plan (2026-2030) | 2026 | Again lists as a future industry, and calls for the development of green fuels derived from green hydrogen |
| Notice on the implementation of pilot projects for the comprehensive application of hydrogen energy | 2026 | Provides subsidies to projects to reduce hydrogen costs to 15-25 yuan/kilogram ($2.20-3.67/kg) and help develop a fleet of 100,000 FCEVs |
Key policies in the development of China’s hydrogen sector.
In addition, the NEA said in 2025 that local governments across China had issued more than 560 hydrogen-related energy policies by the end of 2024.
Tu notes that these local policies cover everything from permitting reforms and pipeline planning to exempting FCEVs from paying road toll.
Different provinces across China adopt distinct strategies for developing hydrogen industries, based on local conditions, says the US-based Center on Global Energy Policy, such as energy mix, availability of coal and industrial needs.
However, these local policies and targets are frequently more ambitious than the “conservative” national-level targets, it adds.
Could a new pilot programme boost hydrogen’s prospects?
A new pilot programme, announced in March 2026, aims to commercialise the country’s hydrogen industry by funding projects to reduce the cost of the fuel to 15-25 yuan/kilogram ($2.20-3.67/kg) by 2030, as well as other targets.
Unlike the 2020 subsidies, which focused on FCEVs, the new programme reaffirms China’s interest in a broader series of sectoral applications for hydrogen, including in clean heating, production of low-carbon iron and steel, and production of “green fuels” and other chemicals.
This new pilot is the “strongest financial instrument ever released for China’s green hydrogen application” in terms of creating a comprehensive hydrogen policy that covers a broad swathe of the economy, supporting it with financial backing and targeting application scenarios, Yu says.
However, she argues that strict grant caps – 240m yuan ($35m) per project and 1.6bn yuan ($235m) per selected region across only five regions – limited the overall funding scale available to the industry.
Energy Iceberg has calculated that only around 60-70 projects nationally could receive funding under the current rules, out of more than 670 active green hydrogen proposals in China.
Shen agrees that the pilot programme is significant and that it will expand the use of hydrogen in China’s climate strategy, particularly green hydrogen.
She notes a provision that “explicitly states that coal-based ammonia and methanol projects cannot be labelled as ‘green’ ammonia or methanol”, suggesting that policymakers are increasingly paying attention to the “integrity” of definitions for hydrogen and hydrogen-derived fuel.
The “real value” of the pilot scheme, says Tu, is that it focuses on developing “integrated city-cluster ecosystems linking supply, transport, infrastructure and end-use demand”, rather than only supporting individual projects.
This “should help identify viable business models, accelerate cost discovery and concentrate support on applications with stronger scale potential”, as well as boost investor confidence, adds Tu.
However, he continues that the broader effect it will have on boosting production of hydrogen will “depend on how quickly the selected clusters can translate the programme into real offtake and lower delivered hydrogen prices”.
How does this compare to China’s EV policy push?
The debate around the viability of hydrogen is reminiscent of critiques of EVs.
Until recently, EVs were seen as too expensive for consumers, inefficient and challenging to use without supporting infrastructure. As a result, many western automakers chose to temper their focus on EVs, while continuing to develop internal combustion engines.
However, China has managed to develop a competitive EV industry with products that top global sales.
Part of the playbook that spurred China’s success on EVs included consistent policy signalling in favour of the technology, including mentions in high-level documents and committing resources to building charging infrastructure.
“The defining features of China’s industrial-policy success are its persistence and adaptability,” says Kyle Chan, fellow at the Brookings Institution, adding that “long before the technology and economics of EVs and batteries were proven, China was making long-term investments and policy bets [in the sectors]”.
More tangible measures included direct and indirect subsidies and policy support in the shape of favourable loan rates and low-cost land. One estimate by US-based thinktank the Center for Strategic and International Studies (CSIS) pegs the amount of support allocated to the EV industry between 2009-2023 at $230.9bn.
This coupled with the success of private Chinese manufacturers in creating innovative, nimble companies that “forc[ed] policymakers to adapt”, as well as growing links between the automotive and information technology industries, according to a separate CSIS report.
But this progress on EVs also reportedly came with significant fraud. In 2016, one investigation found that 33 companies were involved in subsidy fraud totalling 9.2bn yuan ($1.3bn).
(It should also be noted that profitability in the industry lags far behind the average for downstream industrial sectors, according to the Hong Kong-based South China Morning Post, which says that “only a handful” of nearly 50 EV makers have reported profits.)
Being the subject of an industrial policy push alone does not guarantee success, states CSIS. It says the strength of the EV industry “was neither inevitable nor the result of a single master plan” and that China’s aims to develop globally-competitive industries in areas such as commercial aviation remain unaccomplished.
China’s approach to hydrogen has been markedly different.
Instead of offering blanket subsidies, the fuel cell demonstration programme it established in 2020 focused on performance-based rewards.
To avoid the subsidy issues seen in the solar and EV industries, the ministry of finance deliberately chose this indirect funding model, says Yu.
However, Yu argues, the programme did not work as well as hoped, due to the funding ceiling and the siloed attempts made by different regional governments to develop hydrogen ecosystems .
But Chinese policy thinking is becoming more selective and pragmatic for hydrogen compared with EVs, says Shen. She says:
“Electrification remains the primary decarbonisation pathway [for road transport], while hydrogen is increasingly positioned for applications where direct electrification is more difficult.”
Tu echoes this, adding that China is “clearly moving toward a more supportive policy environment for hydrogen”.
But its approach is “unlikely to replicate the EV story one-for-one”, he adds.
China’s concerted hydrogen push is also unlikely to echo the EV story at a global level, according to the IEA.
In terms of green hydrogen, around 60% of global electrolyser manufacturing capacity is currently in China, prompting concerns from the EU about a repeat of China’s global dominance in the solar and EV sectors.
However, the IEA says, electrolysers made in China “might not supply other markets at scale in the short term”, due to difficulties transporting the bulky technology globally, expectations that costs will only fall gradually, uncertainty around global demand and questions over how well Chinese electrolysers perform against global alternatives.
China’s industrial focus on hydrogen is centred more on domestic use, Shen argues. “It is less about near-term export competitiveness and more about building domestic industrial ecosystems,” she says.
The post Q&A: Can China turn hydrogen into its next clean-energy industry? appeared first on Carbon Brief.
Q&A: Can China turn hydrogen into its next clean-energy industry?
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