November 15, 2021
Japan Renewable Energy Corporation

Construction Begins of JRE’s First-Ever
Solar Power Plant with Storage Batteries
JRE to Demonstrate New Business Model Incorporating
Large-Scale Energy Storage System, Tesla Megapack
Japan Renewable Energy Corporation ("JRE"; headquartered in Minato-ku, Tokyo;
Kazuhiro Takeuchi, CEO) has commenced construction of the JRE Inashiki
Kamagayama Solar Power Plant in Inashiki City, Ibaraki Prefecture. The facility, JRE’s
first-ever solar power plant equipped with storage batteries, will demonstrate how
energy time-shifting, production/demand imbalance mitigation, and forecast
optimization can be achieved through the use of large-scale energy storage systems
and trading optimization methods.
Reliance on solar, wind, and other renewable energy is expected to increase as Japan
strives to attain carbon neutrality by 2050. Since power generation based on such
sources is highly dependent on weather conditions, there has been rising interest intechnologies to forecast output and control distributed energy resources for stablesupply. In addition, in anticipation of the post-FIT (Feed-in-Tariff) era, securing profits
utilizing the electric power market is also an issue for the future.
For this demonstration project, Fuji IT Co., Ltd. (headquartered in Hino City, Tokyo;
Etsuro Takemura, CEO) will undertake the engineering, procurement, andconstruction of the Inashiki Kamagayama plant, including the installation of a largescale energy storage system. The plant will be one of the first in Japan to incorporate
Tesla’s Megapack, a large-scale energy storage system that is being used
increasingly around the world.
A renewable energy aggregation system provided by Next Kraftwerke Toshiba
Corporation (“TNK”; headquartered in Kawasaki City, Kanagawa Prefecture; HidekiShingai, CEO) will be used to bundle multiple energy sources for optimum control
based on power generation and market price forecasts. The objective is to carry out
optimum energy trading that minimizes imbalances and ensures profits.
JRE will operate the renewable energy aggregation system with the cooperation ofJRE Trading (headquartered in Minato-ku, Tokyo; Takahisa Nakagawa,Representative Director), a 100%-owned subsidiary of JRE.
The JRE Group hopes to contribute to the development of stable and efficient powersystems through this demonstration project. We will continue our efforts to advancethe use of renewable energy and realize a carbon-free society.
Note: JRE and JRE Trading were accepted by the Ministry of Economy, Trade andIndustry (METI) in June 2021 as renewable energy aggregators and demonstrating
collaborators of a renewable energy aggregation demonstration project. For furtherdetails, please see our news release dated June 10, 2021 (Japanese only).

Reference: Schematic Overview of Demonstration Project(including Inashiki Kamagayama plant)

Tesla Megapack Large-scale Energy Storage System

Photo for illustration only

Outline of Inashiki Kamagayama Plant
Full name
JRE Inashiki Kamagayama Solar Power Plant
Capacity665 kW
Energy storage system Tesla Megapack
October 2021–January 2022
Construction period(operation start slated for January 2022)
Engineering,procurement andFuji IT Co., Ltd.
construction
Renewable energy
Next Kraftwerke Toshiba Corporation
aggregation system
Electricity buyer
JRE Trading Corporation

For inquiries about this matter, please contact:
Japan Renewable Energy Corporation
Corporate Communications & CSR
tel: +81-3-6455-4905 e-mail: pr@jre.co.jp