PowerX Receives Order for Grid-Scale Battery Storage Systems for "Nikko Battery Storage"

PowerX, Inc. (Headquarters: Tamano City, Okayama; CEO: Masahiro Ito; Ticker: 485A) has received an order for 72 units of its "Mega Power 2500" grid-scale battery storage system (total capacity: 162.4 MWh) for the "Nikko Battery Storage" facility. This extra-high voltage storage site will be newly established in Nikko City, Tochigi Prefecture, with Banpu Japan K.K. (Headquarters: Chiyoda-ku, Tokyo; President: Nitih Pitaktheeratham) as the primary investor.

The project is being developed by Nikko Battery G.K. as the operator and is scheduled to begin operations in 2029. By connecting to the Tokyo area power grid to perform charge and discharge operations, it will contribute to stabilizing the power supply-demand balance and support the expansion of renewable energy adoption.

Furthermore, this project has been selected for the "FY2025 Subsidy for Projects Promoting the Expansion of Renewable Energy and Introduction of Grid-Scale Batteries and Other Power Storage Systems" by the Ministry of Economy, Trade and Industry (METI) and the Agency for Natural Resources and Energy.

This marks the third order for an extra-high voltage storage facility funded by Banpu Japan, following projects in Fukushima and Miyazaki Prefectures, bringing the cumulative number of units ordered to 152. PowerX remains committed to contributing to Japan's carbon neutrality through its ongoing partnership with Banpu Japan.

1. Product Ordered PowerX Grid-Scale Battery Storage System "Mega Power 2500": Total 72 units

2. Installation Site and Order Details Site Name: Nikko Battery Storage Location: Nikko City, Tochigi Prefecture Number of Containers: 72 units Rated Storage Capacity: 162.4 MWh (Equivalent to the daily power consumption of approximately 15,200 typical households) PCS Output: 40 MW Operation Start Date: 2029 (Scheduled) Operator: Nikko Battery G.K. (Investee of Banpu Japan K.K.)

3. About "Mega Power 2500" Size: 10-foot container (ISO standard) Battery Type: Lithium Iron Phosphate (LFP) Storage Capacity: Nominal 2,507 kWh / Rated 2,256 kWh (per unit) Manufacturing Site: Tamano City, Okayama Prefecture

*Revenue related to this project is included in the FY2027 sales forecast disclosed in the financial results presentation materials on February 13, 2026. Press releases are issued once agreement for public disclosure is reached with the customer and may not align with the timing of timely disclosure requirements.