NGK pulls plug on world’s second-most-deployed grid storage battery technology after BASF exit - Energy-Storage.News
Published March 28, 2026
NGK Discontinues Production of Second-Most-Utilized Grid Storage Battery Technology Following BASF Departure
NGK Insulators, a prominent player in the energy storage sector, has announced its decision to cease the production of sodium-sulfur (NaS) batteries, which are recognized as the second-most-deployed technology for grid storage worldwide. This move comes on the heels of BASF's exit from the market, significantly impacting the future of sodium-sulfur technology.
According to NGK, the termination of its sodium-sulfur battery production will take effect by the end of March 2024. The company has cited the need to focus on more competitive energy storage solutions as a primary reason for this strategic shift. The sodium-sulfur battery technology has been a key player in energy storage solutions, particularly in large-scale applications, due to its high energy density and long cycle life.
The sodium-sulfur battery technology has been widely used in various applications, including grid stabilization and renewable energy integration. It has played a crucial role in balancing supply and demand in electricity markets, particularly in regions with high penetration of renewable energy sources such as wind and solar power. However, the technology has faced challenges, including high operating temperatures and safety concerns that have limited its broader adoption.
NGK's decision follows BASF's earlier announcement regarding its exit from the sodium-sulfur battery market. BASF, a global leader in chemical production, had previously invested in sodium-sulfur technology but concluded that the market dynamics no longer aligned with its strategic objectives. The exit of both companies from the sodium-sulfur battery sector raises questions about the future viability of this technology in the broader context of energy storage solutions.
The sodium-sulfur battery market has experienced fluctuations in demand over the years, driven by the increasing need for efficient energy storage systems to support the transition to renewable energy. As countries around the world strive to reduce carbon emissions and enhance energy security, the demand for reliable and cost-effective energy storage solutions continues to grow.
Despite the challenges faced by sodium-sulfur technology, other energy storage technologies are gaining traction. Lithium-ion batteries, for instance, have emerged as the dominant technology in the energy storage landscape, driven by their decreasing costs and widespread applicability. Additionally, alternative technologies such as flow batteries and solid-state batteries are being explored as potential replacements for traditional storage systems.
Industry analysts have noted that the exit of major players like NGK and BASF from the sodium-sulfur battery market could accelerate the transition to newer technologies. As the energy storage landscape evolves, companies are increasingly investing in research and development to create innovative solutions that meet the growing demands of the energy sector.
NGK has indicated that it will redirect its resources towards the development of next-generation energy storage technologies that offer improved efficiency and safety. The company aims to leverage its expertise in materials science and engineering to explore new avenues in the energy storage market, positioning itself to remain competitive in an increasingly crowded field.
As the energy transition continues to unfold, the importance of energy storage solutions cannot be overstated. Energy storage systems are essential for managing the intermittent nature of renewable energy sources, ensuring a stable and reliable electricity supply. The advancements in energy storage technologies will play a critical role in achieving global climate goals and enhancing energy resilience.
The discontinuation of sodium-sulfur battery production by NGK and the exit of BASF from the market highlight the dynamic nature of the energy storage industry. Stakeholders are closely monitoring these developments as they seek to understand the implications for future energy storage technologies and their role in supporting the transition to a sustainable energy future.
In summary, NGK's decision to halt sodium-sulfur battery production marks a significant turning point for this technology, following BASF's exit from the market. As the energy storage landscape continues to evolve, the focus will shift towards more competitive and innovative solutions that can meet the increasing demands of the renewable energy sector.
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