Ishikari Bay New Port Offshore Wind Farm
Located in Hokkaido's Ishikari Bay. JERA / GPI joint venture.
Status
Operationallifecycle stage
Ownership
JERA — 50% ○GIGreen Power Investment — 50% ○
Location
JapanSea of Japan (East Sea)
Technology
Capacity
112 MW ◆
Turbines
14 × 8 MW ◆
Model
Siemens Gamesa SG 8-0-167 DD ◆
Foundation
—
Site & conditions
Site rights
Seabed rights held ∴
Water depth
7–22 m ≈
Wind speed
7.6 m/s @ 100 m ≈
Revenue & grid
Offtake
PPA ◆
Grid
Not recorded ◆
Connection
Grid connection secured ◆
Schedule
FID
Sep 2022 ◆
COD
2024-Q1 ◆
Project timeline verified milestones only — each date carries its provenance mark
Dashed tick marks today (13 Oct 2026).
Revenue & offtake the regime the project was built under
Offtake regime: Japan FIT (20-year PPA with Hokkaido 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 since2024-Q1
Sources & verification
Rests on 9 sources (3 primary) · ◆ 2 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.
Operator4
[4]
JERA2024
“On 1 January 2024, JERA Co., Inc. ("JERA") and Green Power Investment Corporation ("GPI") began operations at the Ishikari Bay New Port Offshore Wind Farm. ... 14 wind turbines manufactured by Siemens…”
supportsCommercial operationTurbinesUnit capacityTotal capacityStatus+1 more
[6]
Pattern Energy2022-09-09
“Pattern Energy Group LP (Pattern Energy) and its affiliate in Japan, Green Power Investment Corporation (GPI), announced it has completed financing and begun full construction of its 112 megawatt (MW)…”
supportsFinal investment decisionConstruction startSite rightsTurbinesModel+1 more
[8]
Ministry of Economy, Trade and Industry (経済産業省)2020-02-04◆ 合同会社グリーンパワー石狩「（仮称）石狩湾新港洋上風力発電事業環境影響評価書」に…
“当省は、合同会社グリーンパワー石狩「 （仮称）石狩湾新港洋上風力発電事業環境 影響評価書」（以下「評価書」という。 ）について審査した結果、電気事業法第４６ 条の１７第２項の規定に基づき、本日、同社に対し、評価書の変更を要しない旨の 通知（確定通知）を行った。 ... 令和２ 年 ２ 月 ４ 日”
supportsConsentConsent granted
[9]
Green Power Investment Corporation (株式会社グリーンパワーインベストメント)2023-11-16◆ 石狩湾新港洋上風力発電事業 風車設置工事及び風車各基の試運転が完了 年内完工に向…
“2019年： 事業計画認定の取得（FIT単価36円/kWh確定）”
supportsMechanismDetail
Trade press3
[3]
[5]
The Wind Power2026
Press report — cited, not quoted; read it at the source link.
supportsCoordinates
[7]
Unverified import2
[1]
[2]
unknown
Press report — cited, not quoted; read it at the source link.
supportsoperatorowner