Record-breaking growth signals new phase for global energy storage
Global energy storage system (ESS) shipments have reached an unprecedented milestone in 2025, with 286.35 GWh shipped in the first three quarters — an 84.7% surge compared to the same period last year. According to InfoLink’s latest market ranking, Q3 alone crossed the 100 GWh threshold for the first time, underscoring both the pace and scale of adoption worldwide. Industry analysts forecast total shipments approaching 400 GWh by year-end and potentially 600 GWh in 2026.
This acceleration is not merely a matter of capacity—it reflects a deeper transformation in how global energy networks are being stabilized, how renewable generation is being integrated, and how households and industries are rethinking their energy independence.
Market leaders: Tesla holds ground as Chinese manufacturers surge
The ESS sector remains highly concentrated, with the top ten suppliers commanding roughly 60% of shipments. The top five—Tesla, Sungrow, BYD, CRRC Zhuzhou Institute, and Huawei—are locked in an intense battle for market share. While Tesla maintains a strong position in both residential and utility-scale deployments, Chinese manufacturers are expanding aggressively by leveraging manufacturing scale, competitive pricing, and government-backed incentives.
InfoLink’s supply-chain data suggests that internal rankings among the top three suppliers have shifted multiple times this year, and will likely continue to do so into 2026 as new capacity and product lines hit the market.
Key competitive dynamics
- Tesla: Focused on high-efficiency residential systems and large-scale grid solutions, particularly in North America and Europe.
- Chinese heavyweights: Expanding rapidly in Asia-Pacific, Africa, and Latin America, using cost leadership and modular product designs.
- South Korean comeback: Once dominant players, now poised for recovery as new gigafactories come online in late 2025 and early 2026.
Technology drivers: Lithium-ion dominance and the rise of modular designs
ESS growth is closely tied to advancements in battery chemistry and system architecture. Lithium-ion remains the dominant technology due to its high energy density and falling costs. However, solid-state batteries and alternative chemistries are moving from R&D labs into pilot projects, offering potential breakthroughs in safety and lifecycle performance.
The industry is also experiencing a shift from oversupply to a tighter supply-demand balance, resulting in upward pressure on cell prices. Containerized and modular ESS solutions—designed for rapid deployment and scalability—are becoming the norm for utility-scale projects, enabling faster integration with renewable generation assets.
Practical impacts
- Faster deployment timelines for renewable-linked storage projects.
- Reduced installation costs due to standardized modular systems.
- Improved grid resilience through flexible storage configurations.
Emerging markets reshape global demand
While China and the United States remain the largest ESS markets, rapid growth in India, Southeast Asia, and Australia is shifting the geographic center of demand. India’s subsidies for ESS deployment and Southeast Asia’s long-term energy storage strategies have created new opportunities for suppliers. Australia, driven by grid decentralization and high rooftop solar penetration, is posting strong residential ESS growth.
This diversification of demand reduces reliance on traditional markets and opens pathways for companies to tailor products to local grid conditions and policy frameworks.
Looking ahead: Navigating opportunity and constraint
The path to 600 GWh in 2026 is not without challenges. Supply chain pressures, raw material price volatility, and capacity constraints could hinder smooth expansion. Yet, the momentum suggests that ESS is becoming a foundational pillar of the global clean energy transition—critical for balancing intermittent renewables, enabling microgrids, and providing backup power in regions with unstable electricity supply.
For industry players, the key takeaway is clear: success will hinge on speed to market, technological adaptability, and geographic diversification. For end users—whether utilities, businesses, or homeowners—this surge in ESS capacity promises greater energy security, potential cost savings, and a more resilient grid.
