Battery energy storage systems (BESS) have become an indispensable component within energy systems, not only stabilising power supply but also facilitating the seamless integration of renewable sources like wind and solar into the grid. Among various battery technologies, sodium-ion batteries have garnered significant attention, widely regarded as a promising candidate for stationary energy storage.

Diverse Demands in the Stationary Energy Storage Market

The stationary energy storage market broadly encompasses three categories:

Grid-side storage (FTM): Deployed at the grid level, primarily for peak shaving, frequency regulation, and grid stability;

Customer-side storage (BTM): Installed in commercial/industrial complexes or households to assist users in load balancing and reducing electricity costs;

Emergency and portable storage: Providing flexible power solutions for outdoor electricity use, emergency power supplies, and communication support scenarios.

While these applications impose distinct performance requirements on batteries, all demand a balance of safety, cost-effectiveness, and longevity. Lithium batteries have long dominated the market, yet sodium-ion batteries are now demonstrating formidable competitiveness through their lower cost, enhanced safety, and broad operating temperature range.

Advantages of Sodium-Ion Batteries

Abundant Resources and Lower Costs

Sodium reserves in the Earth’s crust exceed lithium’s by 2000-fold. Its extraction process is simpler, more environmentally friendly, and offers greater supply chain stability. Projections indicate sodium-ion battery costs will decline to approximately $40 per kilowatt-hour by 2030, conferring a significant price advantage.

Wider Operating Temperature Range, Enhanced Adaptability

Sodium-ion energy storage maintains stable performance across broader temperature fluctuations, eliminating reliance on costly temperature-controlled systems. For commercial and industrial storage projects and sodium-ion energy storage cabinets, this translates to reduced construction costs and lower operational expenditure.

Safe storage at 0V for easier transport

Sodium-ion batteries can be safely stored and transported at 0 volts, reducing the risk of damage during logistics and lowering the likelihood of project delays.

Long cycle life and deep discharge capability

Sodium-ion energy storage cabinets enable 100% deep discharge with extended cycle life, allowing fuller capacity utilisation to meet the long-term operational demands of commercial, industrial, and grid-scale energy storage.

Why are sodium-ion batteries suited for stationary storage?

Unlike electric vehicles demanding higher energy density, stationary storage prioritises safety, cost-effectiveness, and longevity over compact size. While sodium-ion batteries offer lower energy density than lithium-ion, their low cost and stable performance prove advantageous in grid peak shaving, commercial/industrial photovoltaic storage, and emergency power applications.

In commercial and industrial photovoltaic storage projects, sodium-ion storage effectively reduces enterprises’ electricity costs. For telecommunications operators’ base station projects, sodium-ion storage cabinets provide stable power during extreme weather or outages, ensuring uninterrupted network connectivity.

Highjoule(HJ Group) Sodium-Ion Energy Storage Solution

As an enterprise deeply rooted in the energy storage sector, Highjoule(HJ Group) has launched sodium-ion energy storage cabinets featuring high safety, wide temperature tolerance, and extended cycle life. These cabinets are suitable for diverse applications including grid peak shaving, commercial and industrial energy storage, and emergency power supply. Key characteristics include:

High-rate continuous charge/discharge capability to meet high-power demands;

Energy efficiency enhanced by over 2%, reducing energy losses;

Support for 100% depth of discharge, maximising battery capacity utilisation;

Shortened investment payback period, enabling enterprises to recoup costs rapidly.

Owing to their low cost, superior safety, and broad applicability, sodium-ion batteries are gradually emerging as a significant force in stationary energy storage. Sodium-ion energy storage will play an increasingly vital role across diverse applications, propelling energy systems towards greater sustainability and stability.

Should you be seeking a cost-effective, sustainable energy storage solution, consider Highjoule(HJ Group)’s sodium-ion storage equipment. It may well prove the pivotal step in your enterprise’s energy transition.