BESS battery cell manufacturers are becoming increasingly important as utility-scale, commercial, industrial and residential energy storage markets expand worldwide. This guide compares leading battery cell manufacturers and explains how they differ from energy storage system brands.
As solar, wind and distributed energy continue to expand, battery energy storage systems, commonly known as BESS, are becoming an important part of utility, commercial, industrial and residential energy infrastructure.
However, not every “battery brand” plays the same role. Some companies focus on battery cell manufacturing, while others provide battery packs, storage cabinets, inverters, PCS, BMS or complete energy storage systems.
According to InfoLink, global energy storage cell shipments reached 467.84 GWh in the first half of 2026. CATL, Hithium, EVE Energy, BYD and CALB held the top five positions, with a combined market share of about 56.5%.
What Is the Difference Between a Battery Cell Manufacturer and an Energy Storage Brand?
Contents
Battery Cell Manufacturer
Battery cells are the core energy-storing units inside a BESS. Cell manufacturers focus on chemistry, cell design, manufacturing processes, cycle life, safety and production consistency.
CATL, Hithium, EVE Energy, CALB and REPT BATTERO are major examples of energy storage cell suppliers with large-scale manufacturing capabilities.
Battery System Manufacturer
Battery cells must then be integrated into packs, racks, cabinets or containerized storage systems. Battery system manufacturers usually combine BMS, thermal management, fire protection, electrical protection and communications.
Some large cell manufacturers also offer complete BESS products, so the boundary between a cell manufacturer and a system provider is not always clear.
Energy Storage and Inverter Brands
Solis, GoodWe, Growatt and Deye built much of their market presence around inverters, power electronics and solar solutions, but they have also expanded into batteries and complete ESS products.
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For that reason, these companies are better described as energy storage and inverter ecosystem brands rather than being directly compared with traditional battery cell manufacturers such as CATL or Hithium.
Leading BESS Battery Cell Manufacturers
CATL
CATL is one of the world’s largest battery manufacturers, with a strong presence in utility-scale BESS, grid storage and renewable energy projects. It remained the leading global energy storage cell supplier by shipment volume in the first half of 2026.
CATL is also expanding beyond conventional LFP storage technology. The TENER Sodium system introduced in 2026 reflects the company’s growing focus on sodium-ion technology for large-scale energy storage.
Hithium
Hithium is highly focused on energy storage, with products designed for utility-scale, commercial and industrial, and residential applications.
Its product portfolio includes LFP energy storage cells ranging from 280Ah and 314Ah to 587Ah, 1175Ah and 1300Ah, with larger-format cells targeting utility-scale and long-duration storage applications.
EVE Energy
EVE Energy operates across EV batteries, consumer batteries and energy storage, and has become one of the major suppliers in the global storage cell market.
BYD Energy Storage
BYD stands out because its energy storage business extends beyond battery cells into battery systems and complete ESS solutions.
In InfoLink’s first-half 2026 global ESS shipment ranking, BYD ranked first among system suppliers, highlighting its strong position not only in battery cells but also in complete energy storage systems.
CALB
CALB operates in both EV batteries and energy storage batteries, with continued development of large-format LFP storage cells.
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CORNEX
CORNEX has expanded from battery cells into grid ESS, C&I ESS, home energy storage and telecom storage applications.
Its product strategy places strong emphasis on large-format cells and containerized BESS solutions, giving the company growing visibility in utility-scale storage.
REPT BATTERO
REPT BATTERO is an important energy storage cell supplier with products serving utility-scale, commercial and industrial, and residential applications.
Compared with suppliers focused mainly on utility-scale projects, REPT also has a notable presence in small-scale storage and solar battery applications.
Great Power
Great Power serves utility-scale, C&I and residential storage markets, giving its portfolio a relatively broad range of applications.
InfoLink data shows that Great Power was among the leading suppliers in energy storage cell shipments outside China in the first half of 2026, supported in part by growth in overseas residential storage markets.
Where Do Solis, GoodWe, Growatt and Deye Fit in the Energy Storage Market?
Solis / Ginlong
Solis is best known for solar and energy storage inverters and has expanded into broader energy storage solutions.
Solis is therefore better described as an inverter and energy storage solution brand rather than a traditional battery cell manufacturer.
GoodWe
GoodWe has expanded from solar inverters into hybrid inverters, residential batteries and commercial and industrial energy storage systems.
Its position in the market is closer to an integrated inverter, battery and energy storage solution provider.
Growatt
Growatt offers residential and commercial solar inverters, low-voltage and high-voltage batteries, and integrated ESS products.
In the residential solar battery market, Growatt places particular emphasis on inverter-battery compatibility and complete system configurations.
Deye
Deye offers hybrid inverters, residential storage, C&I ESS and larger energy storage systems.
Deye is therefore better viewed as a complete energy storage ecosystem brand rather than a pure battery cell manufacturer.
Quick Comparison of Major BESS Battery Cell Manufacturers
CATL: Strong in utility-scale BESS, grid storage, battery cells and complete systems.
Hithium: Highly focused on storage, with large-format cells for utility, C&I and residential applications.
EVE Energy: Broad exposure to utility-scale, small-scale and overseas energy storage markets.
BYD: Active across battery cells, complete BESS and residential storage.
CALB: Strong focus on large-format cells and utility-scale storage.
CORNEX: Covers battery cells, containerized BESS, C&I and multiple ESS applications.
REPT BATTERO: Serves utility, commercial and residential storage markets.
Great Power: Active across utility-scale, C&I and residential energy storage.
FAQs
Which companies are leading BESS battery cell manufacturers?
Major suppliers include CATL, Hithium, EVE Energy, BYD, CALB, CORNEX, REPT BATTERO and Great Power, although rankings can change depending on the quarter and the methodology used.
What Battery Chemistry Is Commonly Used in BESS?
LFP remains the dominant chemistry for large-scale BESS, while sodium-ion technology is beginning to move into larger commercial energy storage applications.
Is a Higher-Ah Battery Cell Always Better?
Not necessarily. Ah indicates cell capacity, but cycle life, efficiency, safety, consistency and system design also have a major impact on BESS performance.
What Is the Difference Between BESS and a Home Solar Battery?
BESS is a broader term that can include commercial, industrial and utility-scale storage, while a home solar battery usually refers to residential solar storage and backup power.
How can I obtain recommendations for a BESS configuration suitable for my project?
Energy storage procurement should not begin with a list of brands, but rather with the project’s requirements. Solaura Energy can develop configuration recommendations for residential, commercial and industrial, and larger-scale battery storage systems based on the project’s location, power output, energy storage capacity, grid connection conditions, backup duration, ambient temperature and certification requirements.
- Project country and installation site
- Residential / C&I / Utility-scale
- Required kW power
- Required kWh or MWh capacity
- Connection to solar, the grid and a diesel generator
- Back-up duration and daily charge/discharge strategy
- Ambient temperature and installation conditions
- Required certifications and lead times
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