---
title: "SouthCoast Wind"
source: https://hafrok.com/projects/us-southcoast/
identifier: us-southcoast
updated: 2026-10-13
---

# SouthCoast Wind

Source: https://hafrok.com/projects/us-southcoast/  
Data as of: 2026-10-13

Lease area OCS-A 0521 (formerly Mayflower Wind), ~45 km south of Nantucket. Ocean Winds (OW North America) acquired 100% ownership.

| Field | Value |
|---|---|
| Country | United States |
| Sea basin | Northwest Atlantic |
| Capacity | 2400 MW |
| Lifecycle stage | On Hold |
| Owners | Ocean Winds |
| Coordinates | 40.7547, -70.4216 |
| Chance of delivery | Fragile (weight 0.058) |

## Milestones

- **Consent applied** — 2021-02-15 (achieved)
- **Consent granted** — 2025-01-17 (achieved)
- **On hold** — 2025-02 (dated)

## Offtake

2,491 MW contracted — utility PPA

- **Utility PPA · Massachusetts Section 83C Round 2** — $58.47/MWh · awarded 2019-10
- **Utility PPA · Massachusetts Section 83C Round 3** — price undisclosed · awarded 2021-12
- **Utility PPA · New England Multi-State Offshore Wind Solicitation (MA + RI)** — price undisclosed · awarded 2024-09

## Sources

Every figure above traces to one of these. Quoted passages are held but not republished; follow the link for the original wording.

- unknown, date not stated — https://www.boem.gov/renewable-energy/state-activities/southcoast-wind-formerly-mayflower-wind
- Ocean Winds, 2024-03-21 — https://www.oceanwinds.com/news/uncategorized/ocean-winds-takes-full-ownership-of-southcoast-wind-project/
- offshoreWIND.biz, 2024-03 — https://www.offshorewind.biz/2024/03/21/shell-exits-us-offshore-wind-project-sells-stake-to-ocean-winds/
- BOEM, 2025 — https://www.boem.gov/renewable-energy/state-activities/southcoast-wind-formerly-mayflower-wind
- Global Energy Monitor, 2026-07-02 — https://www.gem.wiki/SouthCoast_Wind
- GEBCO Compilation Group, 2020 — https://www.gebco.net/data_and_products/gridded_bathymetry_data/
- Rhode Island Current, date not stated — https://rhodeislandcurrent.com/2025/11/14/rhode-island-energy-breaks-off-contract-with-southcoast-wind-amid-federal-uncertainty/
- DTU Wind Energy / World Bank (Global Wind Atlas), 2026 — https://globalwindatlas.info/
- Bureau of Ocean Energy Management (BOEM), 2026-08-23 — https://www.federalregister.gov/agencies/ocean-energy-management-bureau
- Bureau of Ocean Energy Management (BOEM), 2026-08-23 — https://www.boem.gov/renewable-energy/state-activities/southcoast-wind-formerly-mayflower-wind
- Ocean Winds, 2024-09-06 — https://www.oceanwinds.com/news/uncategorized/ocean-winds-selected-by-the-commonwealth-of-massachusetts-and-state-of-rhode-island-to-enter-into-long-term-contracts-for-its-southcoast-wind-project/
- Nantucket Current (State House News Service), 2025-02-27 — https://nantucketcurrent.com/news/southcoast-wind-anticipates-four-year-delay-for-offshore-wind-farm
- MA DOER / EDCs, 2019 — https://macleanenergy.com/wp-content/uploads/2019/05/83c-ii-rfp_finalpackage.pdf
- MA DOER / EDCs, 2021 — https://macleanenergy.com/wp-content/uploads/2021/05/83c3-rfp-and-appendices-final.pdf
- MA DOER & EDCs + RI + CT, 2023 — https://macleanenergy.com/wp-content/uploads/2023/08/83c-rd4-rfp-8.30.2023.pdf

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Hafrok · https://hafrok.com/projects/us-southcoast/ · please cite the page you took a figure from.