Solar and battery subsidies by ward and city, FY2026
Every municipality pays on top of Tokyo’s ¥120,000 to ¥150,000 per kW and ¥100,000 per kWh, or pays nothing. Where a city pays more for a local contractor, the base rate is shown and the local rate is on the city page. Figures from the Solar Partners, Tokyo FY2026 municipal subsidy roundup, 2026-10-06; verify with the municipality before you sign.
23 wards
| Municipality | Solar top-up | Battery top-up | Apply |
|---|---|---|---|
| Chiyoda 千代田区 | 20% of cost, up to ¥1,250,000 | 20% of cost, up to ¥1,250,000 | Before work |
| Chuo 中央区 | ¥10,000 per kW, up to ¥350,000 | ¥10,000 per kWh, up to ¥100,000 | Before work |
| Minato 港区 | ¥100,000 per kW, up to ¥400,000 | ¥40,000 per kWh, up to ¥200,000 | Before work |
| Shinjuku 新宿区 | ¥100,000 per kW, up to ¥300,000 | ¥10,000 per kWh, up to ¥100,000 | After work |
| Bunkyo 文京区 | ¥100,000 per kW, up to ¥700,000 | ¥20,000 per kWh, up to ¥200,000 | After work |
| Taito 台東区 | ¥50,000 per kW, up to ¥200,000 | ¥10,000 per kWh, up to ¥100,000 | Before work |
| Sumida 墨田区 | ¥50,000 per kW, up to ¥200,000 | 10% of cost, up to ¥50,000 | Before work |
| Koto 江東区 | ¥50,000 per kW, up to ¥200,000 | ¥10,000 per kWh, up to ¥100,000 | Before work |
| Shinagawa 品川区 | ¥50,000 per kW, up to ¥200,000 | ¥30,000 per kWh, up to ¥300,000 | After work |
| Meguro 目黒区 | ¥30,000 per kW, up to ¥150,000 | 33.3% of cost, up to ¥70,000 | After work |
| Ota 大田区 | Up to ¥200,000 | ¥100,000 per kWh, up to ¥200,000 | Before work |
| Setagaya 世田谷区 | None | None | Check |
| Shibuya 渋谷区 | None | None | Check |
| Nakano 中野区 | Flat ¥150,000 | Flat ¥100,000 | After work |
| Suginami 杉並区 | ¥40,000 per kW, up to ¥120,000 | Flat ¥50,000 | After work |
| Toshima 豊島区 | ¥20,000 per kW, up to ¥80,000 | ¥10,000 per kWh, up to ¥50,000 | After work |
| Kita 北区 | ¥80,000 per kW, up to ¥200,000 | ¥10,000 per kWh, up to ¥100,000 | Before work |
| Arakawa 荒川区 | ¥20,000 per kW, up to ¥300,000 | ¥5,000 per kWh, up to ¥150,000 | After work |
| Itabashi 板橋区 | None | None | Check |
| Nerima 練馬区 | Flat ¥80,000 | Flat ¥50,000 | After work |
| Adachi 足立区 | ¥72,000 per kW, up to ¥288,000 | Flat ¥60,000 | After work |
| Katsushika 葛飾区 | ¥60,000 per kW, up to ¥300,000 | 25% of cost, up to ¥200,000 | Before work |
| Edogawa 江戸川区 | None | None | Check |
Tama area
| Municipality | Solar top-up | Battery top-up | Apply |
|---|---|---|---|
| Hachioji 八王子市 | ¥10,000 per kW, up to ¥100,000 | Flat ¥30,000 | Before work |
| Tachikawa 立川市 | Not verified | Not verified | Check |
| Musashino 武蔵野市 | ¥30,000 per kW, up to ¥150,000 | None | After work |
| Mitaka 三鷹市 | ¥10,000 per kW, up to ¥100,000 | Flat ¥50,000 | After work |
| Ome 青梅市 | ¥15,000 per kW, up to ¥60,000 | ¥5,000 per kWh, up to ¥30,000 | Check |
| Fuchu 府中市 | ¥20,000 per kW, up to ¥100,000 | ¥20,000 per kWh, up to ¥100,000 | After work |
| Akishima 昭島市 | ¥15,000 per kW, up to ¥60,000 | 33.3% of cost, up to ¥50,000 | Check |
| Chofu 調布市 | ¥20,000 per kW, up to ¥100,000 | Flat ¥50,000 | After work |
| Machida 町田市 | None | None | Check |
| Koganei 小金井市 | ¥30,000 per kW, up to ¥100,000 | Flat ¥40,000 | Check |
| Kodaira 小平市 | ¥30,000 per kW, up to ¥100,000 | Flat ¥60,000 | Check |
| Hino 日野市 | Not verified | Not verified | Check |
| Higashimurayama 東村山市 | ¥30,000 per kW, up to ¥150,000 | Flat ¥70,000 | Check |
| Kokubunji 国分寺市 | ¥30,000 per kW, up to ¥150,000 | Flat ¥60,000 | Check |
| Kunitachi 国立市 | ¥20,000 per kW, up to ¥100,000 | Flat ¥40,000 | Check |
| Fussa 福生市 | 20% of cost, up to ¥200,000 | None | Before work |
| Komae 狛江市 | ¥20,000 per kW, up to ¥80,000 | Flat ¥50,000 | Before work |
| Higashiyamato 東大和市 | Not verified | Not verified | Check |
| Kiyose 清瀬市 | Not verified | Not verified | Check |
| Higashikurume 東久留米市 | Not verified | Not verified | Check |
| Musashimurayama 武蔵村山市 | ¥15,000 per kW, up to ¥50,000 | ¥10,000 per kWh, up to ¥30,000 | Check |
| Tama 多摩市 | ¥20,000 per kW, up to ¥100,000 | Flat ¥40,000 | Check |
| Inagi 稲城市 | Not verified | Not verified | Check |
| Hamura 羽村市 | ¥8,000 per kW, up to ¥80,000 | Flat ¥50,000 | Before work |
| Akiruno あきる野市 | None | None | Check |
| Nishitokyo 西東京市 | None | None | Check |
| Mizuho 瑞穂町 | None | None | Check |
| Hinode 日の出町 | Not verified | Not verified | Check |
| Okutama 奥多摩町 | None | None | Check |
| Hinohara 檜原村 | None | None | Check |