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Cape Wind

Proposed offshore wind farm in Massachusetts, US

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Through Kilowatt-hour, Watt and Natural gas

Cape Wind had arranged to borrow $2 billion from The Bank of Tokyo-Mitsubishi UFJ (BTMU), and Siemens had agreed to supply turbines for the project. Some construction began in 2013, thereby qualifying the project for the federal production tax credit, which was expiring at the end of the year.

It was approved but then lost several key contracts and suffered several licensing and legislative setbacks. National Grid and Northeast Utilities eventually terminated their power purchase agreements in January 2015, making it difficult to obtain the necessary financing for the project to progress.

The developer, Jim Gordon of Energy Management Inc., eventually terminated the lease rights for the site in late 2017.

Plans

The proposed project was to cover 24 square miles (62 km2) and be located 4.8 miles (7.7 km) from Mashpee, Massachusetts, on the south coast of Cape Cod, and 15.8 miles (25.4 km) from the island town of Nantucket.

Cape Wind's developer, Energy Management Inc. (EMI), was a New England–based energy company with 35 years' experience in energy conservation and development. ESS Group, Inc. of Waltham, Massachusetts, was the environmental science specialist for the project. Cape Wind was also being assisted by Woods Hole Group, K2 Management, SgurrEnergy, AWS Truepower, and PMSS. Barclays was Cape Wind's Financial Advisor. The project envisioned 130 horizontal-axis wind turbines, each with a hub height of 285 feet (87 m). The blade diameter was 364 feet (111 m), with the lowest blade tip height at 75 feet (23 m) and the top blade tip height at 440 feet (130 m). The turbines were to be sited between four and 11 miles offshore depending on the shoreline. At peak generation, the turbines were anticipated to generate 454 megawatts (MW) of electricity.

The project was expected to produce an average of 170 MW of electricity, about 75% of the average electricity demand for Cape Cod, Martha's Vineyard, and Nantucket island combined. Had it been built, it might have offset nearly a million tons of carbon dioxide a year and produced enough electricity to offset consumption of 113 million US gallons (430,000 m3) of oil annually.

At the time the project was envisioned, 45% of the Cape region's electricity came from the nearby Canal Generating Plant in Sandwich, a bunker oil and natural gas run facility. The Cape Wind proposal was distinct in that it was envisioned to directly offset petroleum combustion, unlike most of the United States where electrical power generation from oil is rare and power from coal, natural gas and nuclear is more common.

Additionally, this project would have reduced the amount of oil shipped to the Canal Generating Plant; fuel for this plant had been part of two major oil spills, the first on 15 December 1976, when the tanker Argo Merchant ran aground southeast of Nantucket Island, Massachusetts spilling 7.7 million US gallons (29,000 m3) of oil. The second spill occurred in April 2003, when a Bouchard Company barge carrying oil for the Mirant Canal Generating Plant ran aground, spilling 98,000 US gallons (370,000 L) of oil, which killed 450 birds and shut down 100,000 acres (400 km2) of shell fishing beds.

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