GS Yuasa Corporation (Tokyo Stock Exchange: 6674) today announced that the lithium-ion storage battery system combined with a 2MWh capacity power conditioner(“PCS”) which was ordered by Tokyo Gas Engineering Solutions Corporation (“TGES”) and delivered to Hosoe Outboard Engine Plant (Hamamatsu-shi, Shizuoka Prefecture) of Honda Motor Co., Ltd. has begun its operation.

The system, including both the battery and the PCS, is a “pure” domestically produced products manufactured by GS Yuasa. The system features separate PCS and battery units, making it easy to transport to facilities with limited spaces such as factories and solar power plants without the need for large cranes during installation. Additionally, the number of battery units can be adjusted to meet the required capacity, offering flexible design options. With an electrolyte volume of less than 2,000 liters, the system is not classified as general hazardous material under the Fire Service Act, allowing for the minimization of required hold space for fire extinguishing. This product is ideal for use by commercial and industrial, in grid scale energy storage applications, and in renewable energy plants operating an energy storage business under the Feed-in Premium (FIP*1) scheme.

At the Honda site, GS Yuasa’s storage battery system and support services as the part of the energy service of TGES*2 will operate in conjunction with solar power generation systems and contribute to the efficient utilization of renewable energy.
GS Yuasa's products were chosen based on their quality, safety measures, and prompt after-sales service.

GS Yuasa will continue contributing to the field of power supply stabilization through expanding sales of its lithium-ion battery power storage systems. By helping to facilitate power grid adjustment capabilities, GS Yuasa is also contributing to further expansion of renewable energy use in support of Japan’s commitment to achieving carbon neutrality by 2050.

*1 FIP conversion refers to a method where renewable energy power producers install storage battery　
system alongside solar power facilities. By charging the batteries during periods of low wholesale prices
and discharging them during high-price periods, they can achieve economic benefits. This system is based
on the FIP scheme, which adds a certain premium to the electricity selling price to promote the adoption of
renewable energy.
*2 A service where the provider owns, maintains, and operates the energy system in a one-stop manner, and users pay a fee for the energy services without needing to make an initial investment.

1. High level of safety ensured as voltage of all cells can be monitored and temperatures of all modules can be controlled
2. As the modules are fan-less, malfunctions are less likely to occur and the number of parts requiring replacement has been substantially reduced
3. Modules housed in fire prevention ordinance compliant cubicles in accordance with relevant laws and regulations
4. As a small quantity hazardous material*3, the units save space for installation and simplify application to the fire station
5. Able to withstand salt damage and severely cold climatic conditions

*3 Hazardous materials in quantities that do not meet the specified amounts stipulated by the Fire Service Act.

1. High degree of flexibility in terms of location for installation
Since transportation, carrying-in, and installation work can be performed for units of PCS and storage battery panels, no special vehicles or large cranes are required for installation. Compared to the large-scale container-type storage battery facilities that are the mainstream these days, this system offers much greater flexibility in selection of the site for installation, including the transportation route at the time of installation, and can also be installed in narrow spaces.
2. High degree of flexibility in system design
The system can support flexibility in design by increasing or decreasing the number of storage battery panels according to the required storage capacity.

Constant voltage monitoring and failure monitoring are performed on all of the cells to ensure the reliability of the entire system. In the event of a malfunction, GS Yuasa utilizes its nationwide service network (one of Japan’s largest) to promptly respond to customer needs.

*4 STARELINK Service: A maintenance service provided by GS Yuasa that combines its proprietary remote monitoring and predictive/anomaly detection technologies to monitor the operational status and degradation of energy storage systems, and analyzes the accumulated data to diagnose the timing of system replacement and signs of abnormality. The accumulated data is then analyzed to diagnose the timing of system replacement and predict signs of abnormality.
In addition, inspections and parts replacement are performed as preventive maintenance,
and in the unlikely event of sudden failure, repair and restoration services are provided by specialized technicians assigned by GS Yuasa.