Solar System Installers in Japan
Japanese solar panel installers – showing companies in Japan that undertake solar panel installation, including rooftop and standalone solar systems. 425 installers based in Japan are listed below.
| Company Name |
Area
|
Battery Storage | Starting Date | Installation size | Countries Operating In | |
|---|---|---|---|---|---|---|
| Gunma Syoji |
|
Gunma | 2009 |
  |
Japan
|
|
| Hamamatsu Energy |
|
Shizuoka |
|
Japan
|
||
| Hanshin |
|
Hyogo |
|
Japan
|
||
| Hanshin Denki |
|
Shizuoka |
|
Japan
|
||
| Hanshin Kensetsu |
|
Osaka |
|
Japan
|
||
| Hashimoto Denkikouji |
|
Kanagawa |
|
Japan
|
||
| Hashimoto Electric |
|
Osaka |
|
Japan
|
||
| Hayami Gumi |
|
Hokkaido |
|
Japan
|
||
| Hayamizu |
|
Hyogo |
 |
Japan
|
||
| Hayashi |
|
Shiga |
|
Japan
|
||
| Hayashi Construction |
|
Tokyo |
|
Japan
|
||
| Hihiro Heating |
|
Hokkaido |
|
Japan
|
||
| Hiji Denki |
|
Oita | 2002 |
|
Japan
|
|
| Hikari Denki Kouji |
|
Okinawa |
|
Japan
|
||
| Hikari Systems |
|
Akita | Yes |
|
Japan
|
|
| Himeno |
|
Aichi |
|
Japan
|
||
| Hirai Construction |
|
Shimane |
|
Japan
|
||
| Hirotomo Energy |
|
Hyogo | Yes |
|
Japan
|
|
| Hishinaka Industry |
|
Hokkaido |
|
Japan
|
||
| Hitachi Plant Construction |
|
Tokyo |
|
Japan
|
||
| Hitachi Power Solutions |
|
Ibaraki | Yes |
|
Japan
|
|
| Hokuriku Electric Construction |
|
Toyama |
|
Japan
|
||
| Home Tech |
|
Nagasaki | 2013 |
|
Japan
|
|
| Horie Shoten |
|
Chiba |
|
Japan
|
||
| Horikawa Sangyo |
|
Saitama |
|
Japan
|
||
| Horiuchi Denki |
|
Fukuoka |
|
Japan
|
||
| Hotaka Denki |
|
Nagano | Yes |
|
Japan
|
|
| HSK |
|
Kanagawa |
|
Japan
|
||
| HUG Energy |
|
Osaka |
|
Japan
|
||
| I.3 |
|
Tokyo |
|
Japan
|
||
| Ichijo |
|
Tokyo |
|
Japan
|
||
| Idea Technology |
|
Tokyo |
|
Japan
|
||
| IDEC |
|
Osaka |
|
Japan
|
||
| Idemitsu Kosan |
|
Tokyo |
|
Japan
|
||
| IGA |
|
Ibaraki |
|
Japan
|
||
| Igawa Denki Kogyo |
|
Tochigi | Yes |
|
Japan
|
|
| IHI |
|
Tokyo |
|
Japan
|
||
| Iizuka Electric Industry |
|
Kumamoto |
|
Japan
|
||
| Iluck Solar |
|
Tokyo | Yes |
|
Japan
|
|
| Imade Denki |
|
Ishikawa | Yes | 2004 |
|
Japan
|
| Inamura Densetsu Construction |
|
Hokkaido |
|
Japan
|
||
| INPEX |
|
Tokyo | Yes |
|
Japan
|
|
| ISHIX |
|
Gifu |
|
Japan
|
||
| Isozumi Setsubi |
|
Shizuoka | Yes |
|
Japan
|
|
| Itochu |
|
Tokyo | Yes |
|
Japan
|
|
| Itogumi Construction |
|
Hokkaido |
|
Japan
|
||
| Iwatec |
|
Nagasaki |
|
Japan
|
||
| J-kanden |
|
Nara | Yes |
|
Japan
|
|
| Japan Comdac |
|
Osaka | 2000 |
|
Japan
|
|
| Japan Electric Power Service |
|
Tokyo |
|
Japan
|
||
| Japan Energy Bank |
|
Hokkaido | 2003 |
|
Japan
|
|
| Japan Energy Development |
|
Fukuoka |
|
Japan
|
||
| Japan Renewable Energy |
|
Tokyo |
|
Japan
|
||
| JESCO |
|
Tokyo |
|
Japan
|
||
| JESG |
|
Aichi |
|
Japan
|
||
| JFE Plant Engineering |
|
Tokyo |
|
Japan
|
||
| JFE Technos |
|
Kanagawa |
|
Japan
|
||
| Joetsu Giken |
|
Niigata |
|
Japan
|
||
| Joy |
|
Tokyo |
|
Japan
|
||
| Joyo Trading |
|
Chiba |
|
Japan
|
||
| JR Kyushu Electric System |
|
Fukuoka |
|
Japan
|
||
| JSW |
|
Fukuoka | 2012 |
|
Japan
|
|
| Kagashiya |
|
Fukuoka |
|
Japan
|
||
| Kajiki Sangyo |
|
Kagoshima | Yes |
|
Japan
|
|
| Kajima Corporation |
|
Tokyo |
|
Japan
|
||
| Kamogawakeimei Electric |
|
Osaka |
|
Japan
|
||
| Kanai |
|
Niigata |
|
Japan
|
||
| Kanamaru |
|
Yamanashi |
|
Japan
|
||
| Kanden Engineering |
|
Osaka | Yes |
|
Japan
|
|
| Kandenko |
|
Tokyo |
|
Japan
|
||
| Kanko Power Techno |
|
Tokyo |
|
Japan
|
||
| Kankoh Technoseed |
|
Kanagawa |
|
Japan
|
||
| Kankyo Network |
|
Yamanashi |
|
Japan
|
||
| Kankyo Tsushin Yuso |
|
Saitama |
|
Japan
|
||
| KATO Holdings |
|
Tokyo | Yes |
|
Japan
|
|
| KEPCO |
|
Osaka |
|
Japan
|
||
| Kimoto |
|
Oita |
|
Japan
|
||
| Kinden |
|
Osaka |
|
Japan
|
||
| Kintetsu Real Estate |
|
Osaka |
|
Japan
|
||
| Kinuura Denki |
|
Aichi |
|
Japan
|
||
| Kisyou-Solar |
|
Miyazaki | Yes |
|
Japan
|
|
| Kitanihon Sash |
|
Hokkaido |
|
Japan
|
||
| Kitashiba Electric |
|
Fukushima |
|
Japan
|
||
| Kodensha |
|
Saitama |
|
Japan
|
||
| Kokuho System |
|
Kanagawa | Yes |
|
Japan
|
|
| Komaihaltec |
|
Tokyo |
|
Japan
|
||
| KOOKS |
|
Shizuoka |
|
Japan
|
||
| KOSEI |
|
Tokyo |
|
Japan
|
||
| Kouki |
|
Miyagi |
|
Japan
|
||
| Kowa |
|
Kochi | Yes |
|
Japan
|
|
| Koyo |
|
Tochigi |
|
Japan
|
||
| Koyo |
|
Tokyo |
|
Japan
|
||
| Koyo Astro |
|
Tokyo | Yes | 2013 |
|
Australia, China, Germany, It...
|
| KS Engineering |
|
Kanagawa | Yes |
|
Japan
|
|
| Kubokura Densetsu |
|
Kanagawa |
|
Japan
|
||
| Kubota Holding |
|
Miyagi |
|
Japan
|
||
| Kumamoto Risui |
|
Kumamoto |
|
Japan
|
||
| Kurihal Ant |
|
Osaka |
|
Japan
|
||
| Kurihara Kogyo |
|
Osaka |
|
Japan
|
||
| Kuwazawa |
|
Hokkaido |
|
Japan
|