Solar System Installers in Japan
Japanese solar panel installers – showing companies in Japan that undertake solar panel installation, including rooftop and standalone solar systems. 2,242 installers based in Japan are listed below.
| Company Name |
Area
|
Battery Storage | Starting Date | Installation size | Countries Operating In | |
|---|---|---|---|---|---|---|
| IDE |
|
Yamanashi |
  |
Japan
|
||
| Ide Electric |
|
Fukuoka |
|
Japan
|
||
| Idea Technology |
|
Tokyo |
 |
Japan
|
||
| IDEC |
|
Osaka |
|
Japan
|
||
| Idel |
|
Tokyo |
|
Japan
|
||
| Idemitsu Kosan |
|
Tokyo |
|
Japan
|
||
| Iden |
|
Osaka | Yes |
|
Japan
|
|
| IGA |
|
Ibaraki |
|
Japan
|
||
| Igawa Denki Kogyo |
|
Tochigi | Yes |
|
Japan
|
|
| Igigumi |
|
Tottori |
|
Japan
|
||
| IHI |
|
Tokyo |
|
Japan
|
||
| Iino Bussan |
|
Fukuoka |
|
Japan
|
||
| Iizuka Electric Industry |
|
Kumamoto |
|
Japan
|
||
| Ijiri Howbing |
|
Kyoto | Yes |
|
Japan
|
|
| Ikeda |
|
Fukui |
|
Japan
|
||
| Ikedo Electric |
|
Shizuoka | Yes |
|
Japan, Taiwan
|
|
| Iketani Denkou |
|
Mie |
|
Japan
|
||
| Ikuden |
|
Shiga |
|
Japan
|
||
| Iluck Solar |
|
Tokyo | Yes |
|
Japan
|
|
| Imabeppu |
|
Kagoshima | Yes |
|
Japan
|
|
| Imade Denki |
|
Ishikawa | Yes | 2004 |
|
Japan
|
| Imaireidan |
|
Niigata |
|
Japan
|
||
| Impress |
|
Ibaraki | Yes |
|
Japan
|
|
| Improve-Housing |
|
Miyazaki |
|
Japan
|
||
| IMS Business Suport |
|
Osaka |
|
Japan
|
||
| Inaken |
|
Shizuoka |
|
Japan
|
||
| Inamura Densetsu Construction |
|
Hokkaido |
|
Japan
|
||
| Inase Garden |
|
Hyogo |
|
Japan
|
||
| Inazuma Denki Kohji |
|
Nagasaki |
|
Japan
|
||
| Index |
|
Kagoshima | Yes |
|
Japan
|
|
| Ine Techno |
|
Tokyo |
|
Japan
|
||
| Infrast |
|
Fukuoka | Yes |
|
Japan
|
|
| Ingerosec |
|
Tokyo |
|
Japan
|
||
| Inoue Shoko |
|
Kagoshima | Yes |
|
Japan
|
|
| INPEX |
|
Tokyo | Yes |
 |
Japan
|
|
| Iprotech |
|
Okayama |
|
Japan
|
||
| IR |
|
Chiba | Yes |
|
Japan
|
|
| IR Ecology |
|
Tokyo | Yes |
|
Japan
|
|
| IS-Gastem |
|
Chiba | Yes |
|
Japan
|
|
| Ishii Construction |
|
Chiba |
|
Japan
|
||
| Ishii Iron Works |
|
Tokyo |
|
Japan
|
||
| Ishii Shoji |
|
Saitama |
|
Japan
|
||
| Ishiinensho |
|
Mie | Yes |
|
Japan
|
|
| Ishikura Ceramics |
|
Shimane |
|
Japan
|
||
| Ishitomo Reform |
|
Toyama | Yes |
|
Japan
|
|
| ISHIX |
|
Gifu |
|
Japan
|
||
| Isic |
|
Miyagi |
|
Japan
|
||
| Isol |
|
Shizuoka | Yes |
|
Japan
|
|
| Isozumi Setsubi |
|
Shizuoka | Yes |
|
Japan
|
|
| Isshiki Shokai |
|
Mie | Yes |
|
Japan
|
|
| IST |
|
Yamaguchi |
|
Japan
|
||
| Isuzu Motors |
|
Kanagawa | Yes |
|
Japan
|
|
| IT-Reform |
|
Osaka |
|
Japan
|
||
| Itabashi |
|
Tokyo |
|
Japan
|
||
| Item |
|
Fukuoka |
|
Japan
|
||
| Item Corp |
|
Osaka |
|
Japan
|
||
| Ito Denko |
|
Nagano | Yes |
|
Japan
|
|
| Itochu |
|
Tokyo | Yes |
|
Japan
|
|
| Itoden Engineering |
|
Hyogo | Yes |
|
Japan
|
|
| Itoden Trading |
|
Hokkaido |
|
Japan
|
||
| Itogumi Construction |
|
Hokkaido |
|
Japan
|
||
| Itoh |
|
Mie |
|
Japan
|
||
| Itomitsu Construction |
|
Aomori |
|
Japan
|
||
| Itsuwa Denki |
|
Aichi |
|
Japan
|
||
| Iwaden |
|
Iwate | Yes |
|
Japan
|
|
| Iwakyo |
|
Iwate |
|
Japan
|
||
| Iwatec |
|
Nagasaki |
|
Japan
|
||
| Iyo Bussan |
|
Ehime |
|
Japan
|
||
| Iyosan |
|
Ehime | Yes |
|
Japan
|
|
| Izumi Ecology & Economy |
|
Fukuoka | Yes |
|
Japan
|
|
| Izumi Shoten |
|
Iwate | Yes |
|
Japan
|
|
| Izumi-Reitou |
|
Okinawa |
|
Japan
|
||
| Izutani Electrical Construction |
|
Osaka |
|
Japan
|
||
| J-kanden |
|
Nara | Yes |
|
Japan
|
|
| J·System |
|
Kanagawa | Yes |
|
Japan
|
|
| JA Ehime Energy |
|
Ehime |
|
Japan
|
||
| JA Shizuoka Keizairen |
|
Shizuoka |
|
Japan
|
||
| Japan Clean Tech |
|
Okayama | Yes |
|
Japan
|
|
| Japan Comdac |
|
Osaka | 2000 |
|
Japan
|
|
| Japan Ecology |
|
Niigata | Yes |
|
Japan
|
|
| Japan Ecology |
|
Tokyo |
|
Japan
|
||
| Japan Ecology Electric |
|
Fukuoka |
|
Japan
|
||
| Japan Econo |
|
Nagasaki | Yes |
|
Japan
|
|
| Japan Electric Power Service |
|
Tokyo |
|
Japan
|
||
| Japan Enec |
|
Osaka |
|
Japan
|
||
| Japan Energy Bank |
|
Hokkaido | 2003 |
|
Japan
|
|
| Japan Energy Development |
|
Fukuoka |
|
Japan
|
||
| Japan Energy Systems Industry |
|
Aichi | Yes |
|
Japan
|
|
| Japan Environment Techno |
|
Saga | Yes |
|
Japan
|
|
| Japan Life Support |
|
Fukuoka | Yes | 2012 |
|
Japan
|
| Japan Powerplant |
|
Saitama | Yes |
|
Japan
|
|
| Japan Renewable Energy |
|
Tokyo |
|
Japan
|
||
| Japan Solar System |
|
Osaka |
|
Japan
|
||
| Japan Trust Holdings |
|
Hyogo |
|
Japan
|
||
| Japan Vertex |
|
Aichi | Yes |
|
Japan
|
|
| Japan-US Shokai |
|
Miyazaki | Yes |
|
Japan
|
|
| Jastec |
|
Miyazaki | Yes |
|
Japan
|
|
| JC Planning |
|
Saitama | Yes |
|
Japan
|
|
| JED |
|
Chiba | Yes |
|
Japan
|
|
| JESCO |
|
Tokyo |
|
Japan
|