# China energy sector expansion and infrastructure challenges > Live situation record from CLSTR: https://clstr.news/situations/china-energy-sector-expansion-and-infrastructure-challenges > Updated: 2026-08-25T02:42:10.000Z. Sources: 2. Developments: 2. China is experiencing significant developments in its energy sector, characterized by rapid expansion in nuclear capacity and advancements in fusion research. Over the decade leading to 2025, China’s nuclear electricity output rose from 171 terawatt-hours to 485 terawatt-hours, a surge that contributed roughly 314 terawatt-hours to the global increase in nuclear generation. Building on this nuclear momentum, China has completed a record-breaking 582-ton magnet intended for nuclear fusion research, aiming to improve plasma stability within magnetic fields. However, the country faces infrastructure challenges. In the first half of 2026, renewable energy curtailment—the wasting of solar and wind power due to grid limitations—reached approximately 360 terawatt-hours. This represents a 49% year-on-year increase, resulting in wasted energy equivalent to the annual electricity consumption of Mexico. ## Timeline ### 2026-08-25: China advances fusion technology amid renewable energy curtailment China is advancing nuclear fusion with a record 582-ton magnet while simultaneously struggling with massive renewable energy curtailment, wasting energy equivalent to Mexico's annual consumption. 2 sources. https://clstr.news/cluster/china-advances-fusion-technology-amid-renewable-energy-curtailment ### 2026-08-06: China's Nuclear Generation Surge Highlights Global Power Shift China’s nuclear output jumped to 485 TWh in 2025, outpacing global growth, while US utility NextEra Energy’s Florida Power & Light forecasts 8 GW demand and $16 B in grid investment. 4 sources. https://clstr.news/cluster/chinas-nuclear-generation-surge-highlights-global-power-shift --- Cite as: China energy sector expansion and infrastructure challenges. CLSTR, https://clstr.news/situations/china-energy-sector-expansion-and-infrastructure-challenges