Choshi Offshore Demonstration
Located 3km off Choshi, Chiba Prefecture. Also includes a met mast.
Status
Operationallifecycle stage
Ownership
TETEPCO — 50% ◇
NENEDO — 50% ◇
Location
JapanNorthwest Pacific
Technology
Capacity
2.4 MW ◇
Turbines
1 × 2.4 MW ◆
Model
Mitsubishi Mwt 2400 ◆
Foundation
—
Site & conditions
Site rights
Seabed rights held ∴
Water depth
16–30 m ≈
Wind speed
8.0 m/s @ 100 m ≈
Revenue & grid
Offtake
FiT ◇
Grid
Not recorded ◇
Connection
Grid connection secured ◇
Schedule
FID
19 May 2010 ◆
COD
1 Jan 2019 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok's transactions record
4 dated milestones on the spine, each with its source · the ownership chain 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 FiT contract's terms · 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 (3 primary)
◆Verified≈Modelled◇Sourced∴Inferred⌁Convention○Unverified∅No source·Derived
Numbers are stable citation ids — grouped by source class, so they are not consecutive.
Operator4
[3]
[6]
Kajima Corporation2013-02-27
“工期 ： 2010年12月～2013年1月”
supportsOffshore constructionSite rights
[11]
NEDO2013
“the wind turbine for an offshore wind power system offshore of Choshi ... rotors are 92 meters in diameter ... 2400kW generator ... generation facility was started in January 2013”
supportsTurbinesModelUnit capacity
[12]
Mitsubishi Heavy Industries Technical Review2011-09
“Table 1 Specifications of the MWT92/2.4: Rated output 2,400 kW; Rotor diameter 92 m”
supportsModelUnit capacity
Trade press7
[2]
[4]
4C Offshore2018
Press report — cited, not quoted; read it at the source link.
supportsoperatorownerMechanismDetailStatus+1 more
[5]
The Wind Power2026
Press report — cited, not quoted; read it at the source link.
supportsCoordinates
[7]
offshoreWIND.biz2013-03-04
Press report — cited, not quoted; read it at the source link.
supportsFirst power
[8]
offshoreWIND.biz2019-01-09
Press report — cited, not quoted; read it at the source link.
supportsConsentCommercial operation
[9]
Japan for Sustainability2010-05-19
“The Tokyo Electric Power Company, Inc. (TEPCO) announced on May 19, 2010, the start of its 'Experimental Study on Offshore Wind Power Generation Systems' in June 2010, in the Pacific Ocean off the sou…”
supportsFinal investment decision
[10]
Unverified import1
[1]
unknown
Press report — cited, not quoted; read it at the source link.
supportsTotal capacityWater depth
Early access