In the broader narrative of the global energy transition, lithium and copper are forming a unique symbiotic relationship. As geopolitical tensions in the Middle East keep crude oil prices elevated, lithium-based energy solutions—particularly in mobility and storage—are benefiting significantly. Behind this shift, copper, the “lifeline of industry,” is undergoing an unprecedented demand restructuring.
Persistently high oil prices are not merely a reflection of energy market volatility but a catalyst accelerating global electrification. Leading battery manufacturers are ramping up capacity expansion, while pilot production lines for solid-state batteries are advancing rapidly. Equipment procurement and delivery have entered an intensive phase. Amid this rapid expansion of the lithium battery value chain, copper—essential for power transmission—is emerging as one of the most certain beneficiaries, operating under increasingly tight supply-demand conditions.
The explosive growth of the energy storage market is creating a third major demand pillar for copper, following power grid development and electric vehicles. According to the Energy Storage Industry Research White Paper 2026 released by the China Energy Storage Alliance (CNESA), China’s installed capacity of new-type energy storage exceeded 100 GW by the end of 2025, accounting for more than half of the global total for the first time. This massive deployment directly translates into rigid demand for copper.
In electrochemical energy storage systems, copper is indispensable across the entire value chain—from battery cells to grid integration. It is widely used in battery tabs, busbars, inverters, transformer windings, and high-voltage cables. Data shows that copper consumption per MW/2h system is approximately 8 tons, rising to 10–12 tons for long-duration systems exceeding four hours. This implies a 30–50% increase in copper intensity as storage duration extends. By 2026, global copper demand from the energy storage sector alone is projected to reach 460,000 tons, an increase of 130,000 tons from 2025.
This demand growth is not localized but reflects a global structural expansion. In China, the State Grid’s significant investment in grid upgrades during the 15th Five-Year Plan period—over 15% of which is allocated to storage—will directly boost copper demand. In the United States, the rapid buildout of AI data centers is accelerating the deployment of large-scale storage projects; a single Tesla Megapack installation can consume more than 500 tons of copper. Meanwhile, emerging markets such as India and Southeast Asia are witnessing annual copper demand growth exceeding 80% in renewable energy-linked storage systems.
Technological advancements are further amplifying copper demand. As grid-side applications shift toward long-duration energy storage, systems are evolving from short-term peak shaving to extended storage solutions. Global additions of long-duration storage are expected to reach 200 GWh in 2026, driving incremental copper demand of over 60,000 tons. Although sodium-ion batteries are considered a potential substitute, large-scale commercialization is unlikely before 2028. Even then, copper is still expected to account for 3–5% of total battery mass. In essence, technological evolution in lithium batteries and energy storage continues to add to copper demand.
On the supply side, the global copper market faces significant constraints. Declining ore grades, environmental restrictions, and insufficient capital expenditure are limiting growth in copper concentrate supply. Meanwhile, demand continues to expand steadily, driven by renewable energy, grid infrastructure, and AI-related computing investments.
Forecasts indicate that the global copper supply deficit will widen from 330,000 tons in 2026 to 1.84 million tons by 2030. Within this context, the share of incremental demand from energy storage is expected to rise from 15% to 25%. This structural imbalance provides copper with valuation resilience beyond traditional commodity cycles. Even as prices rise, copper accounts for only 8–12% of total energy storage system costs, limiting demand destruction and supporting sustained price strength.
From geopolitical tensions in oil markets to lithium battery expansion and the global rollout of energy storage, the ultimate driver of this energy transformation is the growing demand for efficient power transmission. Copper, as one of the most conductive metals, is increasingly being recognized as the “new oil” of the energy transition.
For market participants, while focusing on opportunities in lithium batteries and energy storage, it is essential not to overlook the strong pull these sectors exert on upstream copper resources. Amid a widening supply gap, copper is not only the king of industrial metals but also a strategic asset in the energy transition era. With high oil prices reinforcing strong downstream demand, the copper market may be entering a prolonged cycle of value re-rating.
Source： Changjiang Nonferrous Metals Network