Noshiro Port Offshore Wind Farm
Part of Akita Offshore Wind Corporation (AOW). Monopiles supplied by SIF Group.
Status
Operationallifecycle stage
Ownership
AOAkita Offshore Wind Corporation — 100% ◆
Location
JapanSea of Japan (East Sea)
Technology
Capacity
84 MW ◇
Turbines
20 × 4.2 MW ◆
Model
Vestas V117 4-2 ◆
Foundation
—
Site & conditions
Site rights
Seabed rights held ∴
Water depth
6–31 m ≈
Wind speed
7.3 m/s @ 100 m ≈
Revenue & grid
Offtake
PPA ◆
Grid
Not recorded ◆
Connection
Grid connection secured ◆
Schedule
FID
3 Feb 2020 ◆
COD
2022-Q4 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
JV formation · 2015-02
Marubeni · Obayashi Corporation · Tohoku Electric Power · Cosmo Eco Power · Kansai Electric Power · Chubu Electric Power · The Akita Bank · Ohmori Co. · Sawakigumi Corporation · Kyowa Oil · Katokensetsu · Kanpu · Sankyo stake not disclosed
- Stake
- not disclosed
- Consideration
- not disclosed
- Announced
- 2015-02
- Closed
- 2020-02
- Project stage
- early development
Companion record to Akita Port Offshore Wind Farm. Same Marubeni-led AOW consortium (Akita Offshore Wind Corporation) covers both the Akita Port (55 MW) and Noshiro Port (84 MW) sites as one integrated FIT project in Akita Prefecture. FIT award 2015, FID February 2020. Consortium structure identical to Akita Port record above. Noshiro Port (84 MW, 20 turbines, Vestas V117-4.2MW) commenced commercial operations on 22 December 2022.
Evidence
- aow.co.jp — OUR PROJECT/Akita Offshore Wind Corporation (AOW) ↗ 2015-02 ◆ held
- Marubeni Corporation — Commencement of Commercial Operation of the Offshore Wind Farm Project at Akita Port and Noshiro Port in Akita Prefecture ↗ 2022-12-22 ◆ held
- marubeni.com — Commencement of full-scale Commercial Operation for Offshore Wind Farm Project at Akita Port and Noshiro Port in Akita Prefecture ↗ 2015-02 ◆ held
- constructionreviewonline.com — The Akita Noshiro offshore wind farm project timeline and all you need to know ↗ 2015-02 ◆ held
From Hafrok’s transactions record
Dashed tick marks today (13 Oct 2026). Ownership lives in the band below: one station per recorded deal, dated at its label, in deal order rather than to calendar scale. Secondary trades appear only at the interchanges; grey lines are parties whose entry or exit Hafrok’s record does not hold.
Revenue & offtake the regime the project was built under
Offtake regime: Japan FIT (20-year PPA with Tohoku Electric)
A built project sells its power under the contract or support regime it was financed with; it is not expected to bid into new government offtake rounds. Where the record does not yet name that regime, the row says so rather than guessing.
Installation how the build is going · from sourced statements and Hafrok’s registers
Installation complete
Installation · on record
StageOperational
In operation since2022-Q4
Sources & verification
Rests on 12 sources (8 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.
Regulator1
[9]
Akita Prefecture (秋田県)◆ 能代港洋上風力発電事業に係る環境影響評価の概要
“事業名 能代港洋上風力発電事業 事業者 秋田洋上風力発電株式会社 ... 事業の規模（評価書） 最大84.0MW（84,000kW） ... 評価書 公告日 令和元年７月１０日”
supportsConsentConsent granted
Operator5
[4]
Marubeni Corporation2022-12-22◆ Commencement of Commercial Operation of …
“Marubeni is pleased to announce that it started commercial operation based on the feed-in tariff program for renewable energy (hereinafter, "FIT") at the Noshiro Port Offshore Wind Farm on December 22…”
supportsoperatorFinal investment decisionConstruction startCommercial operationSite rights+2 more
[12]
Marubeni Corporation2020-02-03◆ Implementation of Offshore Wind Farm Pro…
“it has decided to implement the construction, operation and maintenance of offshore wind farms at Akita Port and Noshiro Port ... The loan agreements were concluded (hereinafter, “Loan”) today.”
supportsFinal investment decision
[13]
Akita Offshore Wind Corporation (秋田洋上風力発電株式会社)2026-10-12◆ 洋上工事 工事記録
“2021年5月12日に能代港において自航式SEP船（自己昇降式作業台船）であるSeajacks社Zaratan号による洋上基礎工事を本格着工しました。”
supportsConstruction startSite rights
[14]
Agency for Natural Resources and Energy, METI (資源エネルギー庁)2026-08-31◆ 再生可能エネルギー事業計画認定情報 公表用ウェブサイト — 05 秋田県 (20…
“U996310B05 | 秋田洋上風力発電株式会社 | 井上 聡一 | 秋田県能代市能代町字日和山下１８－３２ | 0185-74-7715 | 洋上風力 | 84000 | 秋田県能代市河戸川字西山下１－１ | 1 | - | 43248 | - | 2023年1月 | - | - | - | 0-20% | 2042年11月”
supportsMechanismDetail
[15]
Akita Offshore Wind Corporation
“Marubeni Corporation, OBAYASHI CLEAN ENERGY CORPORATION, Tohoku Electric Power Co.,Inc., Cosmo Eco Power Co., Ltd., The Kansai Electric Power Co., Inc., Chubu Electric Power Co., Inc., The Akita Bank,…”
supports↳ parents
OEM1
[11]
Mitsubishi Heavy Industries (MHI Vestas Offshore Wind A/S order announcement)2020-03-19
“MHIヴェスタス（MHI Vestas Offshore Wind A/S）は、秋田県で進められている洋上風力発電所プロジェクト向けに、ロータ直径117m 単機出力4,200kWの洋上風力発電設備（V117-4.2MW）33基を正式に受注しました。同社の日本国内における初の正式受注となり、秋田港内に建設される「秋田洋上風力発電所」に13基、能代港内の「能代洋上風力発電所」に20基を納入する計画です…”
supportsTurbinesModelUnit capacity
Trade press4
[6]
[7]
[8]
Power Technology2023
Press report — cited, not quoted; read it at the source link.
supportsTotal capacity
[10]
Unverified import1
[1]
unknown◆ OUR PROJECT/Akita Offshore Wind Corporat…
supportsTotal capacityWater depthCoordinates