A portion of the expenses will be subsidized when constructing a new ZEH, installing a storage battery, installing a V2H system, or carrying out insulation renovations. *Applications for ZEH reservations have closed.
Kagawa Prefecture: FY2026 Kagawa Smart House Promotion Subsidy
October 17, 2026
Summary
Kagawa Prefecture provides subsidies for ZEH construction, storage battery and V2H installation, and insulation renovations. ZEH reservation applications have closed.
Key Information
| Location | Kagawa |
|---|---|
| Opening Status | Open for Applications |
| Application Period | May 11, 2026 – Feb 26, 2027 |
| Max Subsidy Amount | ¥200,000 |
| Subsidy Rate | ZEH/insulation renovation (whole-house renovation): fixed amount; Storage battery: 1/10; Insulation renovation (partial renovation): 1/2; Upper limits may vary and additional amounts may apply depending on the equipment |
| Purpose | Capital investment / Renewable energy and energy storage |
| Eligible Expenses | Machinery and equipment costs, Equipment purchase costs, Construction costs |
| Eligible Applicants | Individuals |
| Implementing Agency | Kagawa Prefecture |
| Official Page | https://www.pref.kagawa.lg.jp/kankyoseisaku/chikyu/saiene/r8kagawasmarthouse.html |