The 32 megawatt[contradictory] AC[1] Long Island Solar Farm (LISF), located in Upton, New York, was the largest photovoltaic array in the eastern U.S. in November 2011.

[3][4] The project was engineered by Blue Oak Energy and construction subcontracted to Hawkeye LLC from Hauppauge, New York.

[5] The plant earned the Best Photovoltaic Project of Year Award from the New York Solar Energy Industries Association.

[8] Each inverter has an associated meteorological station to help researchers correlate plant output with observed and predicted weather, to help learn how to integrate photovoltaics into the power grid.

A formal case study[9] of the development of the Long Island Solar Farm was published by the U.S. Department of Energy in May 2013.