Deepwater completed construction on the five-turbine project in August, and commercial operations are expected to begin in November.

The companies did not release terms of the transaction. Hedge fund DE Shaw, the principal owner of Deepwater Wind, said its role will remain “unchanged” with the addition of two tax equity investors.

“We’re very proud that two world-class, U.S. companies have chosen to invest in America’s first offshore wind farm,” said Deepwater chief executive Jeffrey Grybowski. “Their backing is a testament to the significance of this project and the strength of the American offshore wind industry.”