Autonomous Energy,Empowered World.
Batteries have moved from the age of building to the age of smart operation.
As renewable energy expands across Japan, demand for grid-scale battery storage keeps growing. Yet revenue depends heavily on the quality of operation — which market to bid into, when, and at what price.
Grid-scale battery interconnection-study applications nationwide (as of end of December 2025) — and applications keep surging every year
Source: METI Next-Generation Power Grid Working Group materialsDaily price spread in the spot market (2024 nationwide average level). Capturing it takes highly accurate price forecasting
Source: JEPX published trading resultsBalancing-market reform: relying on a single market no longer pays — switching between markets is the key to revenue
Source: OCCTONoise to Signal.
Volatile prices, complex regulations, unpredictable weather. TerraSignal's two products turn the noise of the power market into a reliable revenue signal — with AI forecasting and mathematical optimization.
End-to-end management of your battery storage business.
Site Exploration
Document Preparation (Form 5-6, etc.)
Permit Process Management
Coming SoonBattery Operation
Site Exploration
Document Preparation (Form 5-6, etc.)
Permit Process Management
Battery Operation
TerraSignal, wherever you are
Access all of TerraSignal's services right from your smartphone, too.
You can trust what you can see.
Fully performance-based — 10% of gross profit
Zero upfront costs and zero fixed monthly fees. Fees can be verified on your dashboard every month.
Every bid comes with a reason
The AI's reasoning is shown on the dashboard in plain language. No black-box anxiety.
Site scoring and permit paperwork, in seconds
From site evaluation to grid-connection application forms (5-6, 5-7) — AI turns weeks of work into seconds.
Built on trust
NEWS
View all- 7/16/2026
[Release] Grid Battery Automatic Operation Platform "TerraSignal" iOS App Now Available on the App Store - 2/25/2026
Completion of Factory Acceptance Test (FAT) for Shizuoka Prefecture Kakegawa City Project and Verification of Integration with Operation Optimization System "TerraSignal Run" - 2/25/2026
.jpeg)
Announcement of Basic Agreement on Strategic Partnership for the Promotion of Next-Generation Energy Storage System (ESS) Business
How to get started
From first conversation to live operation in four steps. No upfront or fixed costs.
- 1
Consultation & information sharing
We ask about your site location, battery and PCS specifications, warranty terms, and your contract status with an aggregation coordinator (AC).
- 2
Revenue simulation & contract
We present a revenue estimate with every assumption stated. Once you are satisfied, we sign electronically.
- 3
Registration & connection test
We set up your dedicated dashboard, configure the operating policy together — charge/discharge limits and risk tolerance — and generate a trial bidding plan for your review.
- 4
Start of operation
Operation begins on a fully performance-based fee (10% of gross profit). You can verify results on your dashboard anytime.
This flow is for owners of a battery already in operation. If you're still at the land-development stage, see the TerraSignal Plan onboarding flow instead.
Answering your concerns before you ask
No. Our fee is purely performance-based (10% of gross profit), with no upfront or fixed monthly cost. If there is no revenue, we receive nothing. We are paid only when you profit — a fee structure that aligns our interests with yours.
For other questions, please reach out via Contact.See the full FAQ for more details.