Largest solar power stations in Japan
Top biggest solar photovoltaic power stations in Japan.
(Updated May 2026)
Solar power stations, PV farms 2026 in Japan
| Name | Location | State | Capacity MWp or MWAC (*) | Annual Output GWh | Land Size km² | On grid | Remarks | Developer |
|---|---|---|---|---|---|---|---|---|
|
Ukujima |
480 |
2026 planned |
Under construction |
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|
Okayama |
235 |
260 ha |
2018 |
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|
Aomori |
148 |
253 ha |
2015 |
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|
Hokkaido |
111 |
2015 |
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|
Oita |
82 |
87 |
105 ha |
2014 |
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|
Kagoshima |
70 |
127 ha |
2013 |
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|
Yamaguchi |
56.3 |
2018 |
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|
Aichi |
50 |
67.5 |
2014 |
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|
Mie |
49 |
78 ha |
2014 |
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|
Fukushima |
44 |
48 |
60 ha |
2025 |
Expected to be operational in 2025; long-term corporate PPA. |
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|
Aichi |
40.7 |
2015 |
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|
Chiba |
40.36 |
2014 |
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|
Aichi |
40.2 |
2015 |
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|
Ibaraki |
39.21 |
2015 |
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|
Hyogo |
34.7 |
2014 |
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|
Hokkaido |
32.52 |
2014 |
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|
Chiba |
31.211 |
2015 |
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|
Fukuoka |
29.99 |
40 |
2025 |
J-POWER solar plant in Kitakyushu; commercial operation reached in 2025. |
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|
Hokkaido |
27.4 |
2015 |
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|
Oita |
26.54 |
35 ha |
2013 |
105,112 polycrystalline silicon solar panels, 8,760 CIS solar panels. |
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|
Fukushima |
26.229 |
2015 |
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|
Oita |
24.47 |
30 ha |
2015 |
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|
Hokkaido |
23 |
2014 |
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|
Kyoto |
22.898 |
2013 |
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|
Kumamoto |
22.4 |
2015 |
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|
Kumamoto |
21.52 |
2014 |
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|
Yamaguchi |
21.29 |
2014 |
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|
Oita |
21 |
2015 |
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|
Tokushima |
21 |
25 ha |
2015 |
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|
Fukuoka |
20.5 |
2014 |
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|
Fukuoka |
19.6 |
2015 |
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|
Kanagawa |
13 |
15 |
2011 |
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|
Yamanashi |
10 |
14 |
2012 |
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|
Kanagawa |
7 |
9 |
2011 |
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|
Hyogo |
2 |
3.9 |
2024 |
J-POWER subsidiary J-Solar project; supplies Tokyo Metro via virtual PPA. |
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