NEXTES Secures JC-STAR Certification for a Total of Two Products
NEXTES has obtained the 'JC-STAR' (Level 1) security certification for IoT products for a total of two products. In anticipation of regulatory requirements starting in 2027, the company is strengthening its security measures across a product lineup ranging from large-scale grid applications to cabinet-type systems.
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- 📰 Published: May 20, 2026 at 19:00
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NEXTES Corporation (HQ: Setagaya-ku, Tokyo; CEO: Masatake Inoue) has announced that it has obtained the 'JC-STAR' (Level 1) security certification for IoT products for its systems.
Amid the growing importance of cybersecurity in the solar power generation and battery storage sectors, NEXTES has accelerated its compliance with JC-STAR, securing certifications for a total of two products across different categories, ranging from large-scale grid applications to cabinet-type systems.
■ What is JC-STAR?
JC-STAR (Labeling Scheme based on Japan Cyber-Security Technical Assessment Requirements) is a labeling system managed by the Information-technology Promotion Agency, Japan (IPA) under the supervision of the Ministry of Economy, Trade and Industry. It evaluates and visualizes the security functions of IoT products.
By obtaining evaluations from third-party organizations, it demonstrates that a product meets specific security standards, and it is increasingly being used as an index for reliability in public and industrial applications.
■ The Growing Importance of JC-STAR
In recent years, with the proliferation of distributed energy resources such as solar power and battery storage, the necessity of cybersecurity measures for power infrastructure has increased rapidly.
Against this backdrop, it has been established that the use of communication-enabled control systems (PCS, EMS, etc.) that have obtained JC-STAR (Level 1) certification will become mandatory for new solar power generation and battery storage systems connected to the grid after April 2027. For low-voltage products (under 50kW), this will be applied as a transitional measure starting in October 2027.
While the scope is mainly equipment using IP communications, the adoption of JC-STAR-certified products is also recommended for non-targeted equipment from a security standpoint.
As a result, JC-STAR has transitioned from a conventional recommended standard to a critical prerequisite for future product selection.
■ Achieving Certification for Two Products to Facilitate Transport and Installation in Limited Spaces
NEXTES has been developing products compliant with JC-STAR. With this second product certification, the company has achieved JC-STAR compliance across a product line of varying scales, from large-scale grid applications (2,315 kWh) to cabinet-type small-to-medium scale applications (385.8 kWh).
Obtaining certification for multiple products is a move to meet future regulatory requirements and demonstrates the continuity and reliability of the security measures in the company's products.
■ Future Initiatives
NEXTES will continue to contribute to the spread of renewable energy and the stabilization of power infrastructure through the development and provision of battery storage systems.
Amid the growing importance of cybersecurity in the solar power generation and battery storage sectors, NEXTES has accelerated its compliance with JC-STAR, securing certifications for a total of two products across different categories, ranging from large-scale grid applications to cabinet-type systems.
■ What is JC-STAR?
JC-STAR (Labeling Scheme based on Japan Cyber-Security Technical Assessment Requirements) is a labeling system managed by the Information-technology Promotion Agency, Japan (IPA) under the supervision of the Ministry of Economy, Trade and Industry. It evaluates and visualizes the security functions of IoT products.
By obtaining evaluations from third-party organizations, it demonstrates that a product meets specific security standards, and it is increasingly being used as an index for reliability in public and industrial applications.
■ The Growing Importance of JC-STAR
In recent years, with the proliferation of distributed energy resources such as solar power and battery storage, the necessity of cybersecurity measures for power infrastructure has increased rapidly.
Against this backdrop, it has been established that the use of communication-enabled control systems (PCS, EMS, etc.) that have obtained JC-STAR (Level 1) certification will become mandatory for new solar power generation and battery storage systems connected to the grid after April 2027. For low-voltage products (under 50kW), this will be applied as a transitional measure starting in October 2027.
While the scope is mainly equipment using IP communications, the adoption of JC-STAR-certified products is also recommended for non-targeted equipment from a security standpoint.
As a result, JC-STAR has transitioned from a conventional recommended standard to a critical prerequisite for future product selection.
■ Achieving Certification for Two Products to Facilitate Transport and Installation in Limited Spaces
NEXTES has been developing products compliant with JC-STAR. With this second product certification, the company has achieved JC-STAR compliance across a product line of varying scales, from large-scale grid applications (2,315 kWh) to cabinet-type small-to-medium scale applications (385.8 kWh).
Obtaining certification for multiple products is a move to meet future regulatory requirements and demonstrates the continuity and reliability of the security measures in the company's products.
■ Future Initiatives
NEXTES will continue to contribute to the spread of renewable energy and the stabilization of power infrastructure through the development and provision of battery storage systems.
FAQ
What are the benefits of JC-STAR certification?
It ensures product reliability through third-party evaluation and enables compliance with regulations starting in 2027.
Which power systems are covered?
Communication-enabled control systems (e.g., PCS, EMS) used in solar power generation and battery storage.
What is the scale of NEXTES products?
They range from large-scale grid applications (2,315 kWh) to cabinet-type, medium-to-small scale (385.8 kWh).