What is the Onsite Battery Storage Project?

It is a project where Shikoku Electric Power, Imabari Shipbuilding, and PowerX collaborate to install battery storage systems within factory premises to achieve stable utilization of renewable energy and reduce power costs.

What are the main objectives of this project?

The main objectives are to maximize the use of renewable energy, stabilize power supply and demand, and reduce electricity costs by suppressing peak power demand at the factory.

What scale of battery storage system has been installed?

Two units of PowerX's 'Mega Power 2700A' have been installed, with a storage capacity of 4.9 MWh and a PCS rated output of 2 MW.

Shikoku Electric Power and Imabari Shipbuilding Launch "On-Site Battery Storage Project"

Published Apr 2, 2026 12:00 AM ・ Updated Jun 14, 2026 6:21 AM ・ 4 min read ・ Source: PR TIMES

Shikoku Electric Power and Imabari Shipbuilding have launched an "on-site battery storage project" utilizing stationary battery systems manufactured by PowerX, a company they both jointly invested in. The project aims to stably utilize renewable energy, reduce factory electricity costs, and contribute to a decarbonized society.

Shikoku Electric Power Co., Inc. (hereinafter, Shikoku Electric Power) and Imabari Shipbuilding Co., Ltd. (hereinafter, Imabari Shipbuilding) announce that their "on-site battery storage project" utilizing stationary battery systems manufactured by PowerX Co., Ltd. (hereinafter, PowerX), a company in which both companies have a common investment, has commenced operation today, following the progress of installation work within the premises of Imabari Shipbuilding's Saijo Factory Higashi Hiuchi Division (as announced on September 1, 2025).

This project aims to stabilize electricity supply and demand and maximize the utilization of renewable energy by optimally controlling the charging and discharging of storage batteries amidst the widespread adoption of renewable energy with significant output fluctuations. Furthermore, by effectively utilizing stored electricity and suppressing the factory's maximum demand power (peak), it will contribute to reducing electricity costs.

Moving forward, the three companies will continue to collaborate closely for the further effective utilization of battery systems, establish expertise related to the "on-site battery storage project," and contribute to the stabilization of electricity supply and demand and the realization of a decarbonized society by horizontally deploying the knowledge gained through this project to other locations.

Location: Imabari Shipbuilding Saijo Factory Higashi Hiuchi Division (29 Higashi Hiuchi, Saijo City, Ehime Prefecture) Battery Storage System: PowerX stationary battery storage system "Mega Power 2700A" Number of units: 2 Rated storage capacity: 4.9MWh, PCS rated output: 2MW Operator: Yonden Demand Side Storage LLC (a wholly-owned subsidiary of Shikoku Electric Power) Commencement of construction: September 1, 2025 Commencement of operation: April 1, 2026

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Source: PR TIMES
Category: Partnership

Shikoku Electric Power and Imabari Shipbuilding Launch "On-Site Battery Storage Project"

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