RE100 Electric Power Achieves Japan’s First Installation and Grid Connection of Huawei Japan’s Distributed Grid-Scale Battery Energy Storage System
(This article was originally published on December 26, 2025.)
RE100 Electric Power Co., Ltd. (Headquarters: Chuo-ku, Tokyo; President & CEO: Katsuhiro Konishi; hereinafter “RE100 Electric Power”) announces that RE-RE Co., Ltd. (Headquarters: Suita City, Osaka; Representative Director: Naoki Otsu; hereinafter “RE-RE”) has achieved Japan’s first*1 installation and grid connection of Huawei Japan’s distributed grid-scale battery energy storage system “LUNA2000-215-2S11″*2 at a newly established grid-scale battery storage facility in Sakurai City, Nara Prefecture.
Project Overview
RE-RE Co., Ltd. has newly established the Sakurai Battery Storage Facility (tentative name) as its first unit in Sakurai City, Nara Prefecture, and achieved grid connection in December 2025. The facility is equipped with a battery output of 1,999 kW and a battery capacity of 8.17 MWh.
In addition to the installation of this battery storage system, RE100 Electric Power conducts aggregation across the supply-demand adjustment market, the JEPX market, and the capacity market, contributing to the stabilization of supply-demand balance. Furthermore, group company Japan Energy Total System Co., Ltd. is responsible for development, construction, and maintenance management. The newly established battery storage facility will contribute to the stabilization of domestic energy supply and the promotion and expansion of renewable energy.
RE100 Electric Power will continue to contribute to the expansion of renewable energy adoption and the realization of a sustainable society through the operation of this battery storage equipment. Both companies will also focus on leveraging their technical capabilities and expertise to the fullest to create new business models and innovations.
1. Grid-Scale Battery Storage Facility Overview
| Location | Sakurai City, Nara Prefecture |
| PCS Output | 1.99 MW |
| Battery Capacity (Nominal) | 8.17 MWh |
| Grid Connection Date | December 2025 |
About the Distributed Grid-Scale Battery Energy Storage System “LUNA2000-215-2S11”
The system features stable temperature management through liquid cooling and an integrated design with a built-in power conditioning system (PCS), minimizing installation and operational burden while enabling long-term reliable operation. Additionally, its space-saving design facilitates installation in limited spaces, making it suitable for diverse sites including public facilities and business premises. These practical advantages led to its adoption as a highly functional energy storage solution.
LUNA2000-215-2S11 Specifications:
| Dimensions | 1,150 mm × 1,800 mm × 2,100 mm |
| Battery Type | Lithium Iron Phosphate (LFP) |
| Storage Capacity | Nominal: 215 kWh / Rated: 215 kWh |
*1 “Japan’s first” is based on the fact that, as of December 2025, RE100 Electric Power is the only entity to have installed and achieved grid connection of a distributed grid-scale battery energy storage system delivered by Huawei Japan Co., Ltd. in Japan (according to Huawei Japan).
*2 Dimensions: 1,150 mm × 1,800 mm × 2,100 mm; Battery type: Lithium Iron Phosphate (LFP); Storage capacity: Nominal 215 kWh / Rated 215 kWh.
Press Release (Japanese): https://www.re100-denryoku.jp/wp/wp-content/uploads/2025/12/
Media Contact:
RE100 Electric Power Co., Ltd.
Corporate Strategy Division
Tel: 087(813)5907