| Planned | Original selected development consortium memberAomori South | Development | Aomori South offshore wind project |
| In Construction | Shareholder engineering and construction supportFormosa 1 OWF | Development | Formosa 1 construction and launch support |
| Planned | Original development sponsorFormosa 2 OWF | Development | Formosa 2 development consortium |
| Planned | Site survey, measurement and design-condition partnerMODEC TLP | Survey Inspection | Planned verification site and 15 MW-class power generation demonstration facility |
| In Operation | Strategic shareholder in Gia Lai ElectricityTan Phu Dong 2 | Finance Insurance Legal | Indirect corporate investment in GEC, owner of Tan Phu Dong 2 |
| In Operation | Owner · 32.5%Formosa 1 OWF | Ownership | Ownership relationship |
| In Operation | Non Operating Owner · 24.95%Gunfleet Sands 1 | Ownership | The Crown Estate lists JERA as a 24.95% owner of Gunfleet Sands I. JERA acquired this equity interest from Marubeni Corporation. |
| In Operation | Non Operating Owner · 24.95%Gunfleet Sands 2 | Ownership | The Crown Estate lists JERA as a 24.95% owner of Gunfleet Sands II. JERA acquired this equity interest from Marubeni Corporation. |
| Planned | Owner Developer · 100%Ishikari Bay JERA | Ownership | Ownership relationship |
| In Operation | Owner | Onshore grid assets | Gunfleet Sands 1 · Final Grid Connection Point |