Murakami Tainai Offshore Wind (Round 2)

Located in the Sea of Japan off Niigata Prefecture. RWE's first Japanese offshore wind project.

Status
Advanced Developmentlifecycle stage
LikelyHafrok delivery likelihood
Ownership
RORWE Offshore Wind Japan Murakami-Tainai K.K. ◆
OGOsaka Gas Co. ◆
Location
Japan
Sea of Japan (East Sea)
Technology
Capacity 684 MW ◆
Turbines —
Foundation —
Site & conditions
Site rights Seabed rights held ∴
Origination Japan Offshore Wind Round 2 (general sea-area public solicitation) · 2023 ·
Water depth 62–81 m ≈ Wind speed 7.1 m/s @ 150 m ≈
Revenue & grid
Offtake Premium · 3 JPY_per_kWh ◆
Grid —
Schedule
FID Not taken
COD · announced Jun 2029 ◆
COD · Hafrok for registered readers

Delivery outlook modelled by Hafrok · calibrated on delivered projects

LikelyHafrok's delivery likelihood for Murakami Tainai Offshore Wind (Round 2)
The developer says Jun 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 · 1 recorded ownership deal 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 11 sources (6 primary) · ◆ 6 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.
Operator6
[2]
METI / MLIT2023-12-13◆ Round 2 offshore wind operator selection…
“(2)新潟県村上市及び胎内市沖 [1]事業者名(コンソーシアム):村上胎内洋上風力コンソーシアム [2]構成員:三井物産株式会社、RWE Offshore Wind Japan 村上胎内株式会社、大阪瓦斯株式会社 [3]事業計画概要 ・発電設備:着床式洋上風力発電 ・発電設備出力:68.4万kW (1.8万kW×38基、GE製) ・運転開始予定時期:2029年6月”
supportsdeveloperownerCommercial operationTotal capacity
[3]
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]
METI / MLIT2023-12-13◆ 20231213003 1
“2.新潟県村上市及び胎内市沖の評価結果 ... 村上胎内洋上風力 コンソーシアム注2 2029/6/30 68.4 GE Haliade-X (18MW) 38 240 120 (3円/kWh) 120 ... 構成員 三井物産株式会社、RWE Offshore Wind Japan 村上胎内株式会社、大阪瓦斯株式会社”
supportsMechanismStrike / priceDetail
[13]
村上胎内洋上風力発電株式会社 (council paper hosted by MLIT)2026-01-20◆ 新潟県村上市及び胎内市沖 洋上風力発電事業 概要説明(資料4, 2026年1月2…
“発電設備出力 15MW級 x 46基 【註1】 工程(予定) ・環境影響評価:2021年~2027年半ば ・陸上建設工事:2025年10月~ ・洋上建設工事:2028年4月~ ・商業運転開始:2029年6月 【註2】 ... 註1︓風車については15MW級の機種を想定し、検討を進めております。今後、メーカーとの協議を経て最終的に決定いたします。 註2:商業運転開始日に就きましては、風車仕様の変更、…”
supportsCommercial operation
[14]
新潟県 (Niigata Prefecture)2026-09-11
“村上胎内洋上風力発電株式会社 ... 690,000~736,000kW ... 準備書 送付日 令和8年3月2日 公告日 令和8年3月3日(火曜日) 縦覧期間 令和8年3月3日(火曜日)~4月3日(金曜日) ... 知事意見 令和8年9月11日”
supportsStatus note
[15]
環境省 (Ministry of the Environment)2026-10-02◆ (仮称)新潟県村上市及び胎内市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…
“環境省は、「(仮称)新潟県村上市及び胎内市沖洋上風力発電事業環境影響評価準備書」(村上胎内洋上風力発電株式会社)に対する環境大臣意見を経済産業大臣に提出した。 ... 690,000~736,000kW ... 単機出力 15,000kW級×46基”
supportsStatus note
Auction results1
[16]
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 press3
[7]
Global Energy Monitor (GEM.wiki)2026-07-02
supportsCoordinates
[8]
GEBCO Compilation Group2020
supportsWater depth
[9]
DTU Wind Energy / World Bank (Global Wind Atlas)2026
supportsMean wind speed
Unverified import1
[1]
unknown
supportsTotal capacityWater depthCoordinates
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