China's fleet of new-type energy storage reached 167 GW/435 GWh of operational capacity at the end of September 2026, 63% higher than a year earlier, according to data the National Energy Administration (NEA) presented at its quarterly press conference on national energy developments on October 30.
The category covers electrochemical, compressed-air and other emerging storage technologies but excludes conventional pumped hydro. Measured against 135.93 GW/351.12 GWh at the end of 2025, the figures imply a net addition of roughly 31 GW/84 GWh during the first nine months of 2026.
Longer duration, higher use
Average storage duration rose to 2.61 hours, about 0.27 hours more than a year earlier. Equivalent utilization hours over the nine months came to roughly 915, an increase of about 10 hours on the same period of 2025. The data indicate that capacity growth is being accompanied by gradual adjustments in how systems are configured and operated, rather than an expansion of installed megawatts alone.
According to the agency, policy support, technology innovation, industrial supply chains and rising demand for flexibility in the power system have all underpinned the build-out.
The backdrop is the rapid scaling of variable renewables. Combined wind and solar generating capacity passed 2.01 TW by the end of September, equal to about 48.7% of China's total installed power capacity. As that share grows, storage is increasingly called on to absorb surplus output, shift generation to periods of higher demand and deliver fast-response grid services.
Market structure is shifting
Official 2025 figures show how the fleet is composed. Independent storage facilities made up 51.2% of cumulative new-type installations, projects rated at 100 MW or more accounted for 72% of installed capacity, and systems with at least four hours of duration represented 27.6%.
Lithium-ion batteries still dominate, at roughly 96% of installed new-type capacity, while compressed-air, flow batteries and other options are slowly gaining ground.
Reforms are expected to entrench these patterns. China has been building arrangements under which independent storage operators can earn revenue from electricity trading, ancillary services and capacity remuneration, a shift that gradually reduces reliance on mandatory storage quotas attached to renewable projects.
2030 target and a regional example
Under the 15th Five-Year Plan for power system development, new-type storage is targeted at 300 GW by 2030, with more weight placed on longer-duration systems, grid-forming capability and operating efficiency.
The contribution is already measurable in grids with heavy renewable penetration. In western Inner Mongolia, the grid operator reported 20.23 GW/70.47 GWh of operational storage in October. During emergency dispatch, storage supplied as much as 12.25 GW, equal to 33% of the grid's electricity demand at that moment.
Such cases show how storage can provide substantial short-term balancing capacity in systems with high renewable shares. For other countries expanding wind and solar generation, China's deployment offers experience in large-scale storage manufacturing, grid integration and centralized dispatch.