Saikai Enoshima Offshore Wind (Round 2)
Located in the East China Sea off Nagasaki Prefecture. Sumitomo/TEPCO partnership.
Status
Advanced Developmentlifecycle stage
LikelyHafrok delivery likelihood
Ownership
MEMiraie Enoshima G.K. — 100% ◆
Location
JapanEast China Sea
Technology
Capacity
420 MW ◆
Turbines
28 × 15 MW ◆
Maker
Vestas (model not recorded) ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
Japan Offshore Wind Round 2 (general sea-area public solicitation) · 2023 ·
Water depth
8–20 m ≈
Wind speed
7.7 m/s @ 150 m ≈
Revenue & grid
Offtake
Premium · 22.18 JPY_per_kWh ◇
Grid
Not recorded ◆
Connection
Kyushu Electric Power Transmission and Distribution grid ◆
Schedule
FID
Not taken
COD · announced
Aug 2029 ◆
COD · Hafrok
for registered readers
Delivery outlook modelled by Hafrok · calibrated on delivered projects
LikelyHafrok's delivery likelihood for Saikai Enoshima Offshore Wind (Round 2)
The developer says Aug 2029. Hafrok's year sits later than that; the year, the chance and the working are for registered readers.
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Project timeline & ownership verified milestones on the spine · ownership from Hafrok's transactions record
1 dated milestone on the spine, each with its source · 2 recorded ownership deals from Hafrok's transactions record · the developer's announced-COD history
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Revenue & offtake contract terms, price levels and the route to market
the contract terms on record · price over time in money of the day · the routes to market and the next visible round
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Installation how the build is going · from sourced statements and Hafrok's registers
construction status and turbines standing · vessel and port contracts · the grid connection and whether it is ready in time
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Sources & verification
Rests on 12 sources (4 primary) · ◆ 4 documents held
◆Verified≈Modelled◇Sourced∴Inferred⌁Convention○Unverified∅No source·Derived
Numbers are stable citation ids — grouped by source class, so they are not consecutive.
Operator3
[11]
Ministry of Economy, Trade and Industry (経済産業省)2024-12-06◆ 「秋田県男鹿市、潟上市及び秋田市沖」「新潟県村上市及び胎内市沖」「長崎県西海市江…
“経済産業省及び国土交通省は、再エネ海域利用法に基づく海洋再生可能エネルギー発電設備整備促進区域である「秋田県男鹿市、潟上市及び秋田市沖」、「新潟県村上市及び胎内市沖」及び「長崎県西海市江島沖」について、公募により選定された事業者から提出されたそれぞれの公募占用計画を認定しました。 [...] （2）認定をした日 2024年12月6日”
supportsConsentConsent applied
[12]
Ministry of Economy, Trade and Industry / Ministry of Land, Infrastructure, Transport and Tourism (経済産業省・国土交通省)2024-12-06◆ 20241206003 3
“みらいえのしま合同会社（2024年3月に設立）事業者名 住友商事株式会社（代表社員） 東京電力リニューアブルパワー株式会社 構成員 ... 420MW 発電設備出力 Vestas V236-15MW×28基 風車機種 2029年8月 運転開始予定時期 22.18円/kWh 供給価格 ... 420MW (15.0MW x 28基）発電設備出力 Vestas製 V-236風力発電機 モノパイル式 基…”
supportsoperatorCommercial operationTurbinesMakerUnit capacity+6 more
[13]
Ministry of the Environment, Japan (環境省)2026-05-22◆ 長崎県西海市江島沖洋上風力発電事業に係る環境影響評価準備書に対する環境大臣意見の…
“長崎県西海市江島の沖合において、出力420,000kWの風力発電所を設置する事業。 ・ 事業者 みらいえのしま合同会社 ・ 事業位置 長崎県西海市江島の沖合（対象事業実施区域面積 約4,022ha） ・ 出力 420,000kW（単機出力 15,000kW×28基）”
supportsTurbinesUnit capacityTotal capacity
Auction results1
[15]
Aquilo Energy / EEAS2026-06-22◆ jp-round2-2023-jp-tenders-study
Japanese offshore-wind tenders study: 30-yr occupancy permit, scheduled operation <=8 years after Occupancy Plan certification
supportsTender award · Japan Offshore Wind Round 2 (general sea-area public solicitation)
Trade press7
[2]
Sumitomo Corporation2023-12-13
“Sumitomo Corporation … has received notification that our Consortium … has been appointed to design, build and operate an offshore wind project in the sea area off the coast of Enoshima Island, Saikai…”
supportsTotal capacity
[3]
Shulman Advisory2023-12
“For Saikai-Enoshima: bid price 22.18 yen/kWh. The auction was subject to the Feed-in Premium (FIP) regime with an upper limit of 29 yen/kWh … The winner was Sumitomo Corporation and TEPCO Renewable Po…”
supportsMechanismStrike / priceDetail
[4]
DeepWind (third-party aggregator)2026-05-26
“SPV Name: Miraie Enoshima G.K. (みらいえのしま合同会社) … Stakeholders: Sumitomo Corporation; TEPCO Renewable Power … Draft EIA Statement (準備書) — Last updated May 26, 2026 … 5th Statutory Council Meeting: Februa…”
supportsStatusConnection point
[6]
[7]
[8]
[9]
Unverified import1
[1]
Early access