Japan · Grid-Scale Battery Storage

Japan is building grid-scale storage fast.
Most foreign capital can't get in. We're already inside.

We source, structure and operate confirmed, grid-connected projects —
so global investors can deploy capital into operating Japanese assets.
Not a broker — an independent origination and execution partner.

Request a confidential briefing → How we work

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2–50 MW
High to special-high voltage
Confirmed
Grid-connected projects
2 markets
Balancing + capacity (FIT-independent)
PhD-led
Manufacturer- / EPC-independent
We take on the development and technical uncertainty.
You take confirmed assets with the numbers already fixed.
Why Japan, Why Now

A large market — behind a hard local barrier.

Japan is building grid-scale storage at speed, with revenue from the balancing and capacity markets — independent of feed-in tariffs.Source: METI / ANRE. Scarcity of confirmed projects follows from the 2026 rule change; any price premium is not asserted here.

~24 GW

Connection applications

Grid-scale storage applications as of September 2025 (nationwide, ex-Okinawa).

~3.9×

Year-on-year growth

Applications grew roughly 3.9× year-on-year — capacity is hard to secure.

Apr 2026

Anti–slot-hoarding rules

Higher deposits and front-loaded installments make confirmed projects scarcer.

The Barrier

Three barriers keep most foreign capital out. We remove all three.

01

Grid access

Connection slots are scarce and slow to secure — and scarcer since the 2026 rules. You cannot simply acquire land and build.

02

Permitting, land & local navigation

Site control, local approvals and grid procedures are Japanese-language, relationship-driven and time-intensive.

03

Market operation

Owning a battery is not revenue. Earning requires bidding and dispatch expertise across the balancing and capacity markets.

Why ScienceX

Why partner with us

ScienceX knows the Japanese BESS market end to end — and holds the rights and the operating capability you partner with.

Knowledge

We know the market

End-to-end industry expertise

Grid, permitting, contracts, market operation — the local complexity that blocks foreign capital is our core competence, led by an engineer (PhD).

Rights

We hold the rights

Nationwide confirmed pipeline

We source and originate a broad, nationwide pipeline of confirmed, grid-connected rights — including special-high-voltage / utility-scale. That access is what you partner with.

Operations

We operate

Source · structure · run

Neutral, manufacturer-/EPC-independent. We turn confirmed projects into operating assets and run them through leading aggregators.

How We Work

From first look to long-term partnership.

01

Calibrate

We share a shortlist of project teasers so you can gauge fit and our depth — at a level appropriate before an NDA.

02

Open the portfolio — under NDA

With a mutual NDA in place, we open the full pipeline: connection answers, fixed charges, secured land and the technical files your diligence needs.

03

Originate together

We act as your preferred origination and execution partner in Japan, with a continuous flow of confirmed projects. Commercial terms are agreed confidentially.

Insights

We publish — because we are engineers, not intermediaries.

REVENUE

Three revenue sources of battery storage

Spot (JEPX), balancing and capacity — the structure of a Japanese BESS revenue stack.
MARKET DESIGN

Japan's balancing market in five products

Primary-to-tertiary reserves, and why online vs. offline connection changes the economics.
REGULATION · 2026

The 2026 grid-rule turn

What the anti–slot-hoarding measures change, and why confirmed projects matter.
All insights →
About

Engineer-led. Independent by design.

ScienceX is an independent specialist in Japan's grid-scale storage — sourcing, structuring and operating confirmed projects. Founded and led by Dr. Shinya Nakashima (PhD, Engineering); its board includes Toshio Oi (former Director of Showa Denko; CTO) and Yoshinaga Karasawa (former Representative Vice President of Teijin; CFO). We hold no capital ties to any battery manufacturer or EPC — so there is no vendor conflict of interest in equipment selection or cost structure.

Dr. Shinya Nakashima, Founder & Representative Director
Dr. Shinya Nakashima
Founder & Representative Director · PhD, Engineering

Start a confidential conversation.

Tell us your mandate — geography, ticket size, hold preference.
Project specifics are shared under NDA.

Request a confidential briefing →

s@scix.co.jp ｜ +81 3 6403 4095 ｜ Tokyo, Japan