China policy overhaul, AI data centre surge trigger global battery boom

China’s electricity market overhaul and a parallel explosion in demand from artificial intelligence data centres have vaulted battery storage into a new growth phase, industry analysts say, positioning Chinese manufacturers for a major export surge. Changes to pricing and trading rules now allow storage operators to buy power at low prices and sell during peak periods, improving project economics and encouraging longer operating hours for storage assets.

Policy shifts at national and provincial levels are central to the change. Auction based pricing reforms have strengthened arbitrage opportunities, while at least 10 provinces since late 2024 have rolled out capacity tariffs that provide payments to providers for keeping capacity on standby. A Jefferies analyst called the combined measures "the most decisive policy shift for energy storage in over a decade." National planning, including a government proposal worth about 35 billion dollars to nearly double battery storage capacity by 2027, has further reassured investors and developers.

Those policy moves are already producing measurable operational gains. The China Electricity Council reported that energy storage plants ran an average of 3.08 hours per day in the third quarter after reforms, up 0.78 hours year on year and up 0.23 hours versus the previous three months. Industry participants say renewable energy projects are increasingly being paired with mandatory or incentivised storage, which raises recurring demand for battery capacity and creates a steadier revenue stream for project owners.

At the same time, global demand for resilient, high power battery systems has surged as cloud firms and hyperscalers rush to build AI trained and inference data centres. These facilities require large scale energy storage for backup power and to manage peak loads, creating an international market that matches the scale of Chinese manufacturing. Analysts estimate Chinese firms are on track for a roughly 75 percent jump this year in global shipments of lithium ion battery cells for energy storage, reflecting both domestic installation and expanding exports.

Investment flows underscore the trend. A September report by the Ember energy think tank found battery storage investment in China rose 69 percent from the first half of 2024 to the first half of 2025, while grid related investment rose 22 percent over the same period. China accounted for nearly a third of global clean energy investment in Ember’s assessment, reinforcing the country’s central role in the energy transition.

The manufacturing pipeline is visible at trade events where major vendors, including leading battery makers, displayed grid equipment and storage racks, illustrating how production capacity and international sales channels are scaling in tandem. That manufacturing heft is likely to give Chinese suppliers a cost and logistics advantage as global buyers seek large volumes quickly.

Risks remain. The precise magnitude of the export surge and some government figures require independent verification, and a social media claim of 11 billion dollars in 2023 grid battery investment was not corroborated by primary sources. But on current trends, policy driven utilization gains at home and a booming market for AI data centre infrastructure abroad create a near term export opportunity for Chinese battery makers and support rapid industry expansion through 2027.