Checked against the official page on 2026-10-20. Part of Oak’s directory of Japanese business grants.
Before you apply
- The money is not up front. You pay for the whole project yourself. The grant reimburses a share of it (often half to two-thirds) after a completion report has been checked, typically 6 to 18 months after applying.
- Do not spend before approval. Costs ordered, contracted or paid before the official grant decision (交付決定) are usually not eligible.
- Competitive and strict. Business plans are scored against other applicants and many are rejected. Eligibility rules on company size, ownership and tax compliance are applied to the letter.
- Obligations continue after payment. Reports for up to five years, inspections, and targets in your plan. Missing them can mean repaying part or all of the grant.
| Japanese name | 業務・産業用蓄電システム導入支援事業（令和7年度補正） |
|---|---|
| Level | National · Nationwide |
| Administered by | METI ANRE / SII |
| Type | Batteries / DR |
| Maximum amount | Varies by kWh (secondary source) |
| Subsidy rate | ~1/3 (secondary source) |
| Who can apply | Businesses installing DR-ready storage (<100kW PCS type open) |
| Support organisation | None |
| How to apply | SII portal |
| Rounds and deadlines | Open 2026-03-24 to 2026-10-30; grid-scale battery call 2026-09-04 to 11-04; DR IoT to 11-27 |
| Adoption rate | n/a |
Can a foreign-owned company apply?
Open to all Japan-registered firms
Points to note
Status from SII homepage; amounts not verified.
Grant rules, amounts and deadlines change every round. Always work from the current application guidelines (公募要領) on the official page. This page is general information, not advice on your eligibility.
How Oak can help
Oak is a licensed gyoseishoshi (administrative scrivener) firm. We check eligibility before you spend time on an application, help set up the GビズID Prime account most programmes require, prepare and organise the supporting documents within the programme's rules, and handle the reporting that follows an award.