Chinese solar manufacturer Longi has introduced a range of energy storage products aimed at the UK market, targeting growing demand for flexibility, energy resilience and improved utilisation of renewable generation.
The launch marks a further expansion of the company’s energy storage activities following its entry into the sector in late 2025. The new portfolio addresses commercial, industrial and utility-scale applications and is intended to support self-consumption, peak shaving, backup power and grid services.
At the centre of the offering is the Longi One Pro system, a liquid-cooled platform providing 261kWh of storage capacity. The system integrates energy management, battery management, power conversion, thermal management and the company’s TÜV-certified predictive safety technology within a single architecture. It supports both AC- and DC-coupled configurations and can be expanded through a modular “1+11” design.
Longi said the platform had been developed for environments where photovoltaic generation, energy storage, EV charging infrastructure and backup systems need to operate together as part of a coordinated energy strategy.
Longi: storage is no longer simply about adding capacity
Dennis She, vice president of Longi Utility Business Group, said: “Energy flexibility is becoming a strategic priority for businesses and energy operators in the UK. As electricity systems become more complex, storage is no longer simply about adding capacity. It is about creating systems that can respond intelligently, improve resilience, and maximise the value of renewable energy.”
He added: “With Longi One, we are bringing together our expertise in solar and storage to provide integrated solutions that help customers generate, store and manage energy more effectively.”
Alongside the Longi One Pro, the portfolio includes the OmniCube L233 commercial and industrial storage system and the PotisBank-L5.0 and PotisBank-L6.25 utility-scale platforms. According to the company, the systems are designed for applications ranging from manufacturing sites and logistics centres to data centres and EV charging infrastructure.
The launch comes as the UK seeks to expand flexible energy resources to support the government’s clean power ambitions. The Department for Energy Security and Net Zero’s Clean Flexibility Roadmap envisages a substantial increase in flexibility capacity by 2030, with batteries expected to play a central role.
Longi formally entered the energy storage sector in November 2025, positioning itself as a provider of integrated solar, storage and hydrogen solutions.
The company said the UK introduction reflects increasing demand from businesses and energy operators for systems capable of improving resilience, reducing electricity costs and enabling higher penetration of renewable energy.
Photo: Hi-MO One Pro – flagship of the Longi One storage portfolio
Credit: Longi
