GBP Offers Comprehensive Cable Connection Solutions for Grid-Connected Battery Storage Facilities — One-Stop Service from Materials Supply to Installation, with Full Warranty Coverage

GBP Co., Ltd. (Headquarters: Tokyo; Representative Director: Yohei Ryukawa; hereinafter "GBP"), a comprehensive renewable energy solutions developer, announces the launch of an all-in-one solution for grid-connected battery storage facilities, covering everything from cable and terminal material selection to installation and warranty, all under one roof. Leveraging a lineup of high-quality materials — including Japan's first JET-certified high-voltage aluminum cable — and a fully integrated system spanning procurement, construction, and warranty support, GBP is committed to helping battery storage operators overcome the challenges they face.

The Stable Operation of Battery Storage Facilities Depends on the Quality of Cable Connections

Grid-connected battery storage facilities are designed for long-term, stable operation in outdoor environments. The materials used in connection points — such as cables and terminals — must meet high standards not only for environmental durability, but also for ease of inspection and maintenance throughout the facility's operational life.

Copper cables have traditionally been the standard choice due to their electrical conductivity and connection reliability, but the recent surge in copper prices has sparked growing interest in aluminum cables. However, aluminum behaves differently from copper, and careful consideration is required when selecting compatible materials.

Drawing on an extensive track record of deliveries and the expertise of its specialist engineers, GBP provides comprehensive support covering material selection, cable and terminal procurement, and installation. The company recommends the optimal materials tailored to the specific requirements of each project.

Third-Party Verified Quality of GBP Products

Japan's First JET-Certified High-Voltage Aluminum Cable

The aluminum cable for high-voltage DC battery storage systems offered by GBP is Japan's first product of its kind to receive JET certification (effective April 1, 2025), awarded following rigorous testing and review. Its quality and safety have been verified by an independent third-party organization. The 3,300V high-voltage aluminum cable has surpassed a cumulative sales volume of 200,000 meters in just one year (as of November 2025). Adopted across numerous job sites, it has earned high acclaim for its consistently reliable quality.