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Grid-scale battery storage site from above

Projects & pipeline.

Land secured, grid filings submitted, ready to build. Here is where Green Battery is expanding utility-scale storage across Japan.

Where we are today

A scalable pipeline, region by region.

Green Battery moves fast. Our advantage is an aggressive, shovel-ready pipeline: secured land, submitted interconnection filings, and de-risked assets positioned for construction or sale. Here is our footprint across the priority grids driving our target scale.

Grid-scale battery storage overlooking a coastal city
Pipeline at a glance

Scale in numbers

4 GWh
Grid-scale storage targeted nationwide
4
Regional grids: Tohoku, Tokyo, Chugoku, Kyushu
396
Interconnection filings (28 EHV · 368 HV)
No.1
Target position: Japan's leading storage developer and operator
Nationwide footprint

From Tohoku to Kyushu.

We develop grid-scale storage where the grid needs it the most. Across four key utility territories, our sites are secured and grid-filed, ready for construction, long-term operation, or institutional acquisition.

Inquire about a project
Map of Green Battery grid-scale storage projects across Japan, from Tohoku to Kyushu

Directional pipeline as of September 2026 (EHV 28 · HV 368 grid applications). Figures evolve as projects progress and are sold.

Priority regions

Where development is concentrated.

Kanto region of Japan

Tokyo (Kanto)

Anchored near the country's largest demand center, capturing peak evening pricing when dispatch value is highest.

Tohoku region of Japan

Tohoku

Dense wind and solar paired with chronic curtailment, creating prime conditions for large-scale balancing.

Kyushu region of Japan

Kyushu

Japan's curtailment capital – turning spilled midday solar into reliable base power.

Chugoku region of Japan

Chugoku

Western Japan, where heavy midday solar saturation unlocks trapped generation and balances the western grid.

Representative projects

A look at sites in development.

Representative pipeline assets. Detailed specs, capacity and commercial terms available to qualified partners on request.

Project site in Kumamoto, Kyushu

Kumamoto · Kyushu

Grid application filed. Positioned to capture Kyushu's heavy solar curtailment. Details on request.

Project site in Chiba, Kanto

Chiba · Kanto

Grid application filed. Sited near Tokyo’s load center to discharge during peak evening demand. Details on request.

Project site in Hyogo, Kansai

Hyogo · Kansai

Grid application filed. Advancing through interconnection and permitting in Western Japan. Details on request.

Targeting a specific prefecture? We match investor criteria directly to nearest pipeline assets.

Development pipeline

From greenfield to grid-connected.

We manage the entire lifecycle in-house, to deliver complete execution transparency.

01

Land secured

Site identified, diligence completed, and control secured.

02

Grid filed

Interconnection application submitted to the utility.

03

Permitting & design

Civil approvals granted; engineering finalized.

04

Construction

Procurement and build-out with Tier-1 technology partners.

05

Operation or exit

Commissioned, generating revenue, and ready for handover.

Landowners · partners · offtakers

Co-develop, construct, or acquire a project?

Whether you hold land, EPC capability, or capital to deploy, we'd like to hear from you. Tell us what you're looking for, and we'll share the right part of our pipeline.