To promote businesses' efforts to “store” electricity, a portion of the expenses required to install large-scale storage batteries directly connected to the power grid within the service area of Tokyo Electric Power Company will be subsidized.
Tokyo: Support Program for the Installation of Large-Scale Grid-Connected Storage Batteries in Anticipation of Expanded Renewable Energy Adoption (FY2026)
September 29, 2026
Summary
Tokyo provides subsidies for part of the costs of installing large-scale storage batteries directly connected to the power grid within the Tokyo Electric Power Company service area. The subsidy is intended to promote businesses’ efforts to store electricity.
Key Information
| Location | Tokyo |
|---|---|
| Opening Status | Open for Applications |
| Application Period | Sep 1, 2026 – Sep 30, 2026 |
| Max Subsidy Amount | ¥2,000,000,000 |
| Subsidy Rate | 2/3 (3/4 depending on requirements) |
| Purpose | Capital investment / renewable energy and energy storage |
| Eligible Expenses | Equipment purchase costs |
| Eligible Applicants | Corporations |
| Implementing Agency | Tokyo Metropolitan Environment Public Corporation |
| Official Page | https://www.tokyo-co2down.jp/subsidy/grid-connect/ |