In the first half of 2025, China's carbon dioxide (CO2) emissions fell by 1% year-on-year, marking a significant moment in the country's ongoing energy transition.This decline is largely attributed to the remarkable growth in solar energy, which has matched the rising demand for electricity in the nation.
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carbonbrief.orgChina's power sector, the largest source of its emissions, saw a notable 3% decrease in CO2 emissions during this period.The surge in solar energy capacity—212 gigawatts (GW) added in just six months—played a pivotal role in this reduction.This new solar capacity alone accounted for a substantial part of the total clean energy generation growth, which reached 270 terawatt hours (TWh), significantly surpassing the 170 TWh increase in electricity demand.
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carbonbrief.orgcarboncredits.comThe rapid deployment of solar panels has positioned solar energy to potentially become the largest source of clean power generation in China, overtaking hydropower for the first time.In May 2025 alone, 93 GW of new solar capacity was connected to the grid, reflecting a rush to install before a policy change that would alter payment structures for new renewable energy plants.
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carbonbrief.orgweforum.orgHowever, despite the positive trends in renewable energy, China's emissions are expected to remain high due to ongoing coal usage in heavy industries.Although coal consumption in the power sector has decreased, the coal-chemical industry has been expanding, contributing to an overall rise in emissions from other sectors.
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carbonbrief.orgcarboncredits.comThe shift towards cleaner energy sources like electric-arc furnace (EAF) steelmaking is still slow, with the share of EAF production in total steel output declining from 10.2% in 2024 to 9.8% in early 2025, despite government targets aiming for a 15% share.
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carbonbrief.orgThe first half of 2025 also highlighted the mixed results across different industrial sectors.While emissions from the cement and building materials sectors fell by 4% and 3%, respectively, emissions from chemicals surged, offsetting some of the gains made in construction and power generation.
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carboncredits.comclimateactiontracker.orgThe challenge remains in balancing these emissions reductions while continuing to grow the economy.China's renewable energy expansion has positioned it as a global leader, contributing nearly 60% of the world's renewable capacity, with renewables now supplying over 35% of its electricity, up from 27% in 2020.
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carboncredits.comThe country is on track to surpass its 2030 renewable energy targets, as it aims for a 65% reduction in carbon intensity from 2005 levels by that year.
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climateactiontracker.orgHowever, the 2025 target to reduce emissions per unit of GDP by 18% compared to 2020 levels is proving challenging, with current reductions only at about 12%.This gap highlights the need for more ambitious policies in China's upcoming Five-Year Plan for 2026-2030.
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carbonbrief.orgclimateactiontracker.orgAs China moves forward, its ability to balance rapid renewable energy growth with the realities of industrial emissions will be critical.Policymakers are under pressure to enhance their commitments in upcoming climate pledges, especially as discussions for the 2035 Nationally Determined Contribution (NDC) gain momentum.
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carbonbrief.orgclimateactiontracker.orgThe goals set in these frameworks will be essential for guiding China's path toward a sustainable future.In summary, while the solar boom has contributed to a slight decline in emissions in 2025, the overarching challenge remains in addressing emissions from heavy industries.As China continues to expand its renewable sector, the coming years will be crucial in determining the effectiveness of its climate strategies and the overall trajectory of its emissions profile.
