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Top 5 Green Energy startups in Japan
Nov 04, 2025 | By Alexander Gillet | 29 |
1
Funding: ¥23.9B
PowerX brings power transfer technology to life, allowing for greater usage of renewable energy sources. In particular it develops battery tanker.
PowerX brings power transfer technology to life, allowing for greater usage of renewable energy sources. In particular it develops battery tanker.
2
Funding: ¥15B
Kyoto Fusioneering is a research & development, design, and manufacture of parts related to fusion reactors.
Kyoto Fusioneering is a research & development, design, and manufacture of parts related to fusion reactors.
3
Funding: $35M
With our helical-type fusion reactors, Helical Fusion will create a sustainable and stable energy source that will enable the coexistence of humans and the Earth for the next million years.
With our helical-type fusion reactors, Helical Fusion will create a sustainable and stable energy source that will enable the coexistence of humans and the Earth for the next million years.
4
Funding: ¥4.5B
EX-Fusion develops the first commercial laser based nuclear fusion reactor for power generation.
EX-Fusion develops the first commercial laser based nuclear fusion reactor for power generation.
5
Funding: ¥2.9B
TRENDE is an online renewable energy retailer selling electricity to residential customers in Japan
TRENDE is an online renewable energy retailer selling electricity to residential customers in Japan
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