LONGi Green Energy's Energy Storage Strategy: Unified Brand, No Battery Cell Manufacturing, Targeting Photovoltaic and Storage Integration

Ask AI · How can Longi Green Energy’s integrated photovoltaic and energy storage technology break through the industry’s “silo effect”?

China Economic Journalists Zhang Yingying and Wu Kezhong report from Beijing

“In the future, the energy storage business will uniformly use the ‘LONGi’ brand externally and no longer retain the ‘Jingkong’ identifier. In addition, the company will continue to increase R&D and innovation investment, expand advanced production capacity such as PCS and system integration, and strengthen digital operations and management.” Recently, during the 14th International Energy Storage Summit and Exhibition (ESIE2026), Longi Green Energy (601012.SH) Vice President Yu Haifeng, in responding to the coordinated layout after acquiring Jingkong Energy, told China Business Journal reporters as follows.

ESIE2026 Longi Green Energy exhibition booth. Longi Green Energy / Photo

In November 2025, the Shaanxi Provincial Administration for Market Regulation publicized Longi Green Energy’s acquisition of Jingkong Energy’s equity. This January to February, Longi Green Energy stated clearly in investor interactions that it had completed the acquisition of Jingkong Energy.

As a global leader in photovoltaic modules, Longi Green Energy ranked first in global module shipments in 2025. Jingkong Energy was established in 2015. It has more than a decade of experience in the energy storage industry, with more than 12GWh of cumulative grid-connected capacity worldwide, and it ranks among the top in both the global energy storage system DC side and domestic industrial and commercial energy storage system rankings.

The deep integration of the two companies is a snapshot of the current era in which photovoltaic–energy storage integration is moving from concept to reality and from equipment assembly to native integration.

According to Yu Haifeng, in the past two years, customers have frequently asked when Longi will deploy energy storage. In his view, photovoltaic–energy storage integration has become an irreversible mainstream trend in the industry. Photovoltaic investment and operation customers generally have a rigid demand to build energy storage power stations simultaneously. And previously, the energy storage market “grew in a barbaric manner”; system integration was mainly just simple assembly, with prominent pain points. With its more than twenty years of accumulated brand trust, Longi Green Energy hopes to help customers address core pain points in areas such as technical integration, project delivery, and operational management.

Photovoltaic and energy storage share the same origin and have a high degree of overlap among end users. Yu Haifeng said that Longi Green Energy will prioritize serving its existing photovoltaic customer base—these users, who highly recognize the Longi brand, are the most core foundational customer group for the energy storage business. He judges that in the future, more than 60% of demand in the energy storage market will be deeply integrated with photovoltaic scenarios.

Yu Haifeng revealed that Longi Green Energy’s founder and Director of the Central Research Institute, Li Zhen’guo, has already promoted internally the establishment of a photovoltaic–energy storage integration technology research institute. The core goal is to achieve deep coupling between photovoltaic and energy storage, pursuing the technological synergy effect of “1+1>2.” At present, relevant technical solution designs have been completed, and a new product for photovoltaic–energy storage integration will be released within the next quarter.

At this exhibition, Longi Green Energy officially launched the “Full Stack Longi LONGi ONE” photovoltaic–energy storage integration strategy. It proposes to build a “sunlight power generator” that combines top global efficiency and safety by using fully self-developed native integration technology, aiming to completely break the long-standing “silo effect” that exists in photovoltaic and energy storage systems.

In terms of scenario layout, Longi Green Energy focuses on two major core tracks: large-scale grid/ground energy storage and industrial-and-commercial energy storage. At this exhibition, it launched flagship products for large-scale energy storage—OneBank 2.0—an industrial-and-commercial “Smart Green Power” solution, Hi‑MO One+ EnergyOne, and station-level modular, flexible deployment product OneMatrix 2.0.

Relying on Jingkong Energy’s more than ten years of energy storage technology accumulation, Longi Green Energy has built a “5S” highly integrated R&D system supported by five core technologies: iCCS, BMS, PCS, EMS, and TMS, providing technical support for end-to-end green power solutions across the whole ecosystem.

“Overall, Longi hopes to provide end users with a complete energy system, an information system, and a control system, but will not be involved in cell manufacturing. We will deeply bind with leading cell companies and jointly define the cell technology direction,” Yu Haifeng emphasized. “Longi Green Energy does not make cells, but we will be responsible for the entire chain of the energy storage system.”

At this exhibition, Longi Green Energy for the first time proposed the concept of a “single responsible entity” within the industry: from photovoltaic modules to energy storage systems, from hardware delivery to full lifecycle operations and maintenance, customers only need to interface with Longi Green Energy as one single subject in order to obtain end-to-end guarantees for the full process of power generation, energy storage, and electricity consumption. Unified technical standards, a unified service system, and a unified responsible entity can realize clear traceability of issues across all system links, efficient response, and thoroughly eliminate manufacturers’ responsibility shifting and management blind spots.

The photovoltaic–energy storage industry has a global attribute, and overseas markets are also a key part of Longi Green Energy’s energy storage strategy.

Yu Haifeng said that, relying on its photovoltaic marketing and service network covering 120 countries worldwide and on Jingkong Energy’s global project delivery experience of 13GWh, Longi Green Energy has initiated the “2830 Plan”: that is, by the end of 2028, to set up 30 full-capability local service centers in major global photovoltaic–energy storage integration markets.

“Compared with peers, this global layout will significantly improve efficiency in full lifecycle management and speed of service response,” Yu Haifeng said.

Editor: Dong Shuguang Reviewer: Wu Kezhong Proofreader: Liu Jun