China’s ESS sector is booming: Q1 shipments surged 117%, with capacity utilization nearing full load.

Overview

This research report tracks global energy storage system (ESS) data as of May 2026, with the key finding that the Chinese market is experiencing explosive growth. In the first quarter of 2026, China’s ESS shipments reached 215.9 GWh, up 117% year over year—a pace that significantly exceeds the firm’s earlier forecast of 56% growth in global ESS shipments for the full year 2026. Driven by declining costs and supportive policies, domestic demand in China remains robust, while overseas markets are also accelerating. The report concludes that this trend suggests global ESS demand in 2026 could grow by more than the previously anticipated 50%, and reaffirms CATL as the top pick among beneficiaries of this theme.

Core views

China’s market demand has posted triple-digit growth, serving as the primary growth driver. By March 2026, China’s ESS shipments reached 81.9 GWh, up 84% year over year and 30% month over month. Domestic shipments surged 82% to 79.4 GWh, while overseas shipments expanded even more rapidly, climbing 173% to 2.5 GWh. The robust first-quarter cumulative shipments of 215.9 GWh were underpinned by declining battery costs and a more favorable policy environment, significantly enhancing the economic viability of energy storage. Additionally, in March, China’s ESS tender activity remained robust, with awarded battery capacity totaling 42.6 GWh (+59% yoy) and tendered capacity reaching 59.5 GWh (+69% yoy), signaling a solid pipeline of future demand. Industry capacity utilization hit a record high, tightening supply‑demand dynamics. As demand outpaced industry capacity, Chinese ESS manufacturers’ capacity utilization climbed to a historic peak of 97.4% in March, well above last year’s 89.3%. This indicates a tight short‑term balance in the sector. Monthly ESS production capacity in China reached 85.0 GWh in March, up 37% year over year. CATL led the pack with 19.2 GWh of monthly capacity, capturing 21.5% of the market share, while Ganfeng Lithium and Penghui Energy posted the fastest capacity expansions, growing 166% and 111% year over year, respectively. Competitive Landscape: CATL Takes the Lead, Second‑Tier Players Surge. Among battery manufacturers, CATL maintained its top position, shipping 18.0 GWh of ESS lithium batteries in March—up 50% year over year—and holding a 22.9% market share year-to-date through 2026. Following closely are EVE Energy, Hithium, and BYD, each commanding 7%–10% market share. Notably, Ganfeng Lithium, Penghui Energy, Hithium, and Cornex have demonstrated the fastest growth this year, with some achieving triple-digit sales increases. Overseas Markets Show Divergence: Germany Strong, U.S. Still Subdued. While China remains the dominant market, international demand is also accelerating. In Germany, March ESS installations totaled 1.0 GWh, up 58% year over year, driven primarily by large‑scale projects (+113%). By contrast, U.S. installations stood at 2.5 GWh in March, down 25% year over year, with first‑quarter total installations at 5.4 GWh—a slight 7% decline compared to the same period last year. Despite significant month‑to‑month volatility, institutions remain confident that the U.S. market will sustain rapid growth over the long term. Outlook and Valuation: Upside Revisions, Bullish on Leaders. Given the current high‑growth trajectory, institutions have revised their 2026 global ESS demand forecast upward to 56% (totaling 858 GWh), with the potential for actual growth to exceed 50%. Looking ahead, global demand is expected to reach 1,755 GWh by 2030, reflecting a compound annual growth rate of 20%. In terms of individual stock selection, institutions view CATL as the optimal vehicle to participate in this theme, assigning an “Outperform” rating to its A‑shares with a target price of RMB 620, and a “Market Perform” rating to its H‑shares.

Analysis framework

The institution employs a high-frequency data‑tracking approach, integrating multi‑source datasets from the ICC Data Center, the U.S. Energy Information Administration (EIA), and ISEA, to update monthly metrics on ESS installation volumes, shipments, production capacity, and capacity utilization across key global markets—China, the United States, and Germany. The analytical framework follows the sequence: demand validation → supply response → competitive landscape → earnings mapping: 1. First, out‑of‑expectation shipment and installation data from China and Germany confirm that industry sentiment exceeds年初 forecasts; 2. Next, capacity utilization (97.4%) and tendering activity indicate tight supply‑demand dynamics and strong forward order visibility; 3. Then, the market shares and growth rates of major battery manufacturers are disaggregated to highlight CATL’s entrenched leadership position and the high upside potential of second‑tier players; 4. Finally, industry beta is translated into stock‑specific alpha, with CATL recommended as a core holding based on its market share and scale advantages.

Methodology notes

• Industry/Industrial Analysis FrameworkSupply-and-Demand Framework

  Capacity utilization and a tight supply-demand balance

  The research report assesses the industry’s supply-and-demand dynamics by monitoring the capacity utilization rate. When the utilization rate approaches or exceeds 90%—as in this period, at 97.4%—it typically signals robust demand and tight supply, which tends to support stable or rising product prices and enhance the bargaining power of leading firms.

• Industry/Industrial Analysis FrameworkVolume-price decomposition

  Shipment and Installed Capacity Tracking

  For the manufacturing sector, particularly the battery industry, it is crucial to distinguish between “shipment volume” (referring to units dispatched by manufacturers) and “installed capacity” (reflecting end‑user deployment). Shipment volume gauges production‑side activity, while installed capacity captures the realization of genuine demand. Research reports track both metrics to provide a comprehensive assessment of the industry’s overall momentum.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Contemporary Amperex Technology Co., Limited (300750.CH / 3750.HK)

  Key beneficiary: The global leader in ESS battery shipments, holding the largest market share.

  Strengths

  In March, shipments reached 18 GWh (+50%), with a year-to-date market share of 22.9% and a capacity utilization rate as high as 99.1%, underscoring significant economies of scale.

  Comparison

  Compared with competitors such as EVE and BYD, CATL maintains a clear lead in both market share and absolute shipment volume.

• BYD (1211.HK / 002594.CH)

  Key Suppliers: Major Players in the ESS Battery Sector

  Strengths

  In March, shipments totaled 7.1 GWh, up 77% year-to-date, with a YTD market share of 7.4%, reflecting strong growth momentum.

  Weaknesses

  Its market share is approximately one-third that of CATL.

  Comparison

  Growth rate exceeds that of CATL, but the base is relatively small.

• EVE Energy

  Key Suppliers: Major Players in the ESS Battery Sector

  Strengths

  March shipments totaled 7.2 GWh, up 44% year-to-date, with a YTD market share of 9.7%.

  Comparison

  Its market share ranks second, tied with Haichen Energy Storage.

Key data

• China’s ESS Shipments in Q1 2026215.9 GWhYear-on-year growth of 117%, significantly above the full-year forecast.
• March 2026: China’s ESS Capacity Utilization Rate97.4%Reaching a record high, compared with 89.3% in the same period last year.
• March 2026: CATL ESS Shipment Volume18.0 GWhYear-on-year growth of 50%, with a market share of 22.9%
• Germany’s ESS installations in Q1 20262.1 GWhYear-on-year growth of 29%
• U.S. ESS Installations in Q1 20265.4 GWhDown 7% year over year
• 2026 Global ESS Demand Growth Forecast56%The institution’s revised forecast corresponds to a total of 858 GWh.

Impact & implications

The research report argues that record-breaking growth in energy storage deployments is fueling robust momentum across battery stocks and the broader battery value chain, particularly against a backdrop of relatively subdued electric vehicle (EV) growth. The surge in Chinese demand is being driven by both declining costs and supportive policies, making energy storage increasingly economically attractive. For investors, this implies that battery manufacturers—especially leading firms with scale advantages and commanding market shares, such as CATL—will reap substantial benefits from this structural growth. Meanwhile, near‑full capacity utilization suggests the industry may face supply constraints in the near term, which bodes well for top-tier players with the capacity to expand production.

What to watch

• Will China’s ESS capacity utilization rate remain at a high level above 90% in the months ahead?
• Has the growth in U.S. ESS installation volumes returned to positive territory now that the monthly volatility has subsided?
• Can the capacity expansion plans of major battery manufacturers, such as Ganfeng and Phineon, keep pace with the surging demand?