Against the backdrop of an ongoing transition towards a green and low-carbon energy structure, energy storage technologies are emerging as the ‘energy core’ of new power systems.

At the 13th China International Energy Storage Conference, Academician Zhao Tianshou of the Chinese Academy of Sciences emphasised: ‘Building a new power system centred on renewable energy necessitates storage technologies capable of diverse durations, large-scale deployment, and high safety.’ This statement pinpoints the industry’s critical imperative: energy storage requires not the dominance of a single technology, but the synergistic evolution of multi-dimensional solutions.

I. Short-Term Energy Storage: The Ultimate Challenge in Response Speed

For regulating power fluctuations at the second and minute levels, supercapacitors and flywheel energy storage remain irreplaceable.

Supercapacitors are renowned for their ultra-high power density, rapid response, and exceptionally long lifespan, making them ideal for emergency power supply and instantaneous peak shaving. Flywheel energy storage, which stores electricity in mechanical form, offers advantages in high cycle endurance, swift response, and environmental friendliness, though its energy density is comparatively lower.

Highjoule(HJ Group) has deeply integrated short-duration energy storage with control algorithms within microgrids and distributed energy systems. Through its proprietary intelligent EMS system, it achieves millisecond-level response times, delivering dynamic voltage stabilisation and transient energy dispatch solutions that significantly enhance system stability.

II. Medium-Duration Energy Storage: The Maturation and Evolution of Lithium Battery Technology

Lithium-ion batteries currently dominate energy storage applications. Boasting high energy density, modular design, and a mature supply chain, lithium batteries have been comprehensively deployed across commercial and industrial energy storage, grid peak shaving, and renewable energy integration.

However, safety concerns associated with traditional liquid electrolytes remain significant, positioning solid-state batteries as a key future direction.

Leveraging years of lithium battery system integration expertise, Highjoule(HJ Group) has launched the 314Ah liquid-cooled cell system and high-safety outdoor energy storage cabinets (HJ-Z series) . Through liquid cooling temperature control, multi-level BMS protection, and AI predictive algorithms, it achieves three key characteristics: high safety, extended lifespan, and intelligent management. It finds extensive application in scenarios such as data centres, communication base stations, and industrial and commercial parks.

III. Long-duration Energy Storage: The Key to Addressing Renewable Fluctuations

Long-duration energy storage (4 hours or more) is regarded as a ‘scarce resource’ in the new power system. As renewable energy penetration continues to rise, lithium batteries alone struggle to meet cross-daylight, cross-seasonal storage demands. Emerging technologies like flow batteries, compressed air energy storage (CAES), and hydrogen energy are increasingly capturing industry attention.

Flow batteries warrant particular focus. Their ‘power-energy decoupling’ architecture delivers high safety, scalability, and extended lifespan. Though cost and energy density remain bottlenecks, their technological potential is substantial.

Highjoule(HJ Group) is collaborating with domestic universities and research institutions to actively develop integrated solutions for vanadium flow batteries and zinc-iron flow batteries, exploring unified system designs encompassing generation, grid, load, and storage. In certain projects, Highjoule(HJ Group) has achieved integrated photovoltaic-storage-hydrogen demonstration, enabling users to generate green electricity during daylight hours and sustain long-duration low-carbon operations overnight.

IV. From Point Technologies to System Synergy: New Directions in Intelligent Energy Storage

Future energy storage systems will transcend the simple stacking of ‘batteries plus inverters’, evolving into intelligent systems that integrate AI algorithms, digital twins, energy management, and multi-source complementarity.

Highjoule(HJ Group) posits that the core competitiveness of energy storage is shifting from ‘hardware performance’ towards ‘system intelligence’.

Guided by this philosophy, Highjoule(HJ Group) has developed a cloud-based energy storage monitoring platform and AI energy forecasting model, enabling:

Precise load forecasting and adaptive scheduling;

Dynamic energy efficiency optimisation and carbon footprint tracking;

Coordinated control of multiple storage modalities, boosting overall efficiency by over 10%.

These innovations elevate energy storage systems from ‘standalone devices’ to pivotal nodes within ‘intelligent energy networks’.

V. Conclusion: Highjoule(HJ Group) – Making Energy Storage Safer, Smarter, and More Sustainable

The future of energy storage lies in secure, flexible, and intelligent multi-technology integration systems.

As a leading domestic provider of energy storage system solutions, Highjoule(HJ Group) has established a full-stack presence across containerised energy storage, grid-side storage, residential photovoltaic-storage systems, and liquid-cooled energy storage technologies.

We deliver not merely products, but high-security, high-yield, and highly reliable smart energy systems for global users.

In the evolution of the new power system, Highjoule(HJ Group) believes:

‘The safety and efficiency of every kilowatt-hour form the cornerstone of our journey towards a zero-carbon future.’