US Wind Maryland Offshore Wind (MarWin)
Located ~18 km off Ocean City, Maryland. OCS-A 0490. Up to 114 turbines, four offshore substations.
Status
On Holdlifecycle stage
FragileHafrok completion outlook
Ownership
UWUS Wind — 100% ◆
Location
United StatesNorthwest Atlantic
Technology
Capacity
2,200 MW ◇
Turbines
—
Foundation
Monopile ◇
Site & conditions
Site rights
Seabed rights held ∴
Origination
BOEM Lease Sale 3 · 2014 ·
Water depth
14–35 m ≈
Wind speed
9.8 m/s @ 150 m ≈
Revenue & grid
Offtake
OREC ◇
Grid
—
Schedule
FID
Not taken
COD · announced
Dec 2030 ◇
COD · Hafrok
—
Delivery outlook modelled by Hafrok · calibrated on delivered projects
—
on hold — no credible date; the chart shows when a restarted project might complete
The developer's last guidance was 2030-12 · not treated as a schedule while the project is on hold
Chance of delivery
≈7%
estimated chance this project reaches commercial operation
Projects put on hold complete ≈15% of the time on Hafrok's record. This one sits well below that: a market with a thinner delivery record, a very large build and technical complexity. A secured offtake contract helps only slightly. Only a restart would change that — there is no dated schedule to judge against. That figure is then halved while Hafrok reads the United States route as closed: a route that has to be won again is less likely to be won.
COD outlook
If it completes, when — Hafrok’s probability by year (teal)
| Year | Probability |
|---|---|
| 2033 | 20.0% |
| 2034 | 20.0% |
| 2035 | 20.0% |
| 2036 | 20.0% |
| 2037 | 20.0% |
How Hafrok got this date
1
On hold — no dated schedule
The project is recorded as On Hold, so no sequence of milestones can be trusted. Hafrok publishes no expected year; the chart instead spreads the remaining chance of completion over the years a restarted project might finish in.
2
Route closed until 2029
Hafrok believes a held project in the United States is unlikely to resume before a route to build exists again, and does not expect one before
January 2029. On that reading the years the chart spreads the remaining chance over begin after 2029, not after today. This is Hafrok's judgment, not a fact on the record — what it rests on: United States market page.3
Chance of delivery — separate from timing
Start from the share of On Hold projects that went on to complete — ≈15%, measured on Hafrok's record of delivered and abandoned projects, with an allowance held back where that record cannot yet speak (projects still unresolved, changed market conditions). Historically only a minority of projects put on hold returned to delivery — the estimate reflects that. Then adjust for this project's own evidence — offtake, market, size, technical complexity — and halve the result while Hafrok reads the United States route as closed (a route that has to be won again is less likely to be won) — to ≈7%, which rates it
Fragile on Hafrok's four-step delivery scale (Delivering · Expected · Prospective · Fragile).Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
Origination · 2014-08
BOEM Lease Sale 3
- Awarded to
- US Wind Inc.
- Lease
- OCS-A 0489 + OCS-A 0490
- Basis
- seabed award
From the auction results — the round that created the project.
JV entry · 2020-08
Renexia (Toto Group) → Apollo Global Management stake not disclosed
- Stake
- not disclosed
- Consideration
- €233m
- Announced
- 2020-08
- Project stage
- early development
In August 2020, Apollo Infrastructure Funds (managed by Apollo Global Management) announced a structured investment in US Wind Inc., committing up to USD 265 million through a combination of convertible debt and equity to acquire an equity stake in US Wind and fund development and construction costs of the Maryland offshore wind project. US Wind holds a BOEM lease of approximately 80,000 acres off the Maryland coast (originally sized for 1.3 GW, later expanded via additional leases toward 2.2 GW / MarWin + Momentum Wind phasing). US Wind is majority-owned by Renexia SpA, a subsidiary of Toto Holding SpA. Apollo subsequently became a minority equity holder alongside Renexia.
Evidence
- ir.apollo.com — Apollo Infrastructure Funds Announce Strategic Investment in US Offshore Wind Developer US Wind Inc. :: Apollo Global Management, Inc. (APO) ↗ 2020-08 ◆ held
- offshoreWIND.biz — Apollo Buys Into US Wind ↗ 2020-08 ◆ held
- globenewswire.com — Apollo Infrastructure Funds Announce Strategic Investment ↗ 2020-08 ◆ held
From Hafrok’s transactions record
Dashed tick marks today (9 Sep 2026). The ▲ below the spine is the developer-announced COD. The teal diamond on the spine is origination — the seabed award or round that created the project. Every other ownership event 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 contract duration and price levels · money of the day
1,056 MW contracted — OREC
● OREC · Maryland PSC Offshore Wind OREC Round 1
Price$131.93/MWh ·Capacity248 MWAwardedMay 2017● OREC · Maryland PSC Offshore Wind OREC Round 2 (Clean Energy Jobs Act 2019) repriced
Price$54.17/MWh ·Capacity808.5 MWAwardedDec 2021Installation how the build is going · from satellite counts and Hafrok’s registers
Installation not started
nothing to count yet: the satellite tracker begins when offshore construction does
Installation · on record
StageOn Hold
Offshore constructionnot started
Expected start of operation2030-12
Sources & verification
2/11 fields verified · rests on 13 sources (4 primary) · ◆ 5 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.
Regulator4
[5]
[7]
[12]
Bureau of Ocean Energy Management (BOEM)2026-08-23◆ US BOEM offshore-wind register (FR docum…
“Lease row OCS-A 0490: companies ['US Wind Inc.']; lease_dates ['12/01/2014']; lease_terms ['25 Years']; states ['Maryland']; block_count 89.”
supportsRegister entry
[13]
Bureau of Ocean Energy Management (BOEM)2026-09-03◆ BOEM project page - Maryland Offshore Wi…
“On December 3, 2024, the Department of the Interior announced the approval of the Maryland Offshore Wind Project Construction and Operations Plan (COP).”
supportsConsentConsent granted
Financier1
[4]
Auction results2
[14]
Maryland PSC2017◆ us-md-order-88192
MD PSC Order 88192 (Case 9431) - OREC Round 1 award rules (US Wind MarWin + Skipjack).
supportsOREC · Maryland PSC Offshore Wind OREC Round 1
[15]
Maryland General Assembly2019◆ us-md-ceja-2019
Maryland Clean Energy Jobs Act 2019 (SB 516) - authorized OREC Round 2 (>=1,200 MW).
supportsOREC · Maryland PSC Offshore Wind OREC Round 2 (Clean Energy Jobs Act 2019)
Trade press5
[6]
NS Energy2024
Press report — cited, not quoted; read it at the source link.
supportsFoundationMechanismDetail
[8]
[9]
[10]
[11]
offshoreWIND.biz2025-01-29
Press report — cited, not quoted; read it at the source link.
supportsCommercial operation
Unverified import1
[1]